2002-12-12 13:14:23 +01:00
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/* Copyright (C) 2002 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2006-12-23 20:17:15 +01:00
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the Free Software Foundation; version 2 of the License.
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2002-12-12 13:14:23 +01:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "mysql_priv.h"
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#include "sp.h"
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#include "sp_head.h"
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2003-07-03 15:58:37 +02:00
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#include "sp_cache.h"
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2005-07-09 19:51:59 +02:00
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#include "sql_trigger.h"
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2003-07-01 18:14:24 +02:00
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2006-03-02 13:18:49 +01:00
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#include <my_user.h>
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2004-06-09 14:19:43 +02:00
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static bool
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create_string(THD *thd, String *buf,
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In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
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int sp_type,
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2004-03-11 17:18:59 +01:00
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sp_name *name,
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In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
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const char *params, ulong paramslen,
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const char *returns, ulong returnslen,
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const char *body, ulong bodylen,
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2006-03-02 13:18:49 +01:00
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st_sp_chistics *chistics,
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const LEX_STRING *definer_user,
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const LEX_STRING *definer_host);
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2005-11-23 00:11:19 +01:00
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static int
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db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
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ulong sql_mode, const char *params, const char *returns,
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const char *body, st_sp_chistics &chistics,
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const char *definer, longlong created, longlong modified);
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In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
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Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
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/*
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*
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* DB storage of Stored PROCEDUREs and FUNCTIONs
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*
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*/
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In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
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enum
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{
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2003-12-16 19:14:10 +01:00
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MYSQL_PROC_FIELD_DB = 0,
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In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
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MYSQL_PROC_FIELD_NAME,
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MYSQL_PROC_FIELD_TYPE,
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MYSQL_PROC_FIELD_SPECIFIC_NAME,
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MYSQL_PROC_FIELD_LANGUAGE,
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MYSQL_PROC_FIELD_ACCESS,
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MYSQL_PROC_FIELD_DETERMINISTIC,
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MYSQL_PROC_FIELD_SECURITY_TYPE,
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MYSQL_PROC_FIELD_PARAM_LIST,
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MYSQL_PROC_FIELD_RETURNS,
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MYSQL_PROC_FIELD_BODY,
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MYSQL_PROC_FIELD_DEFINER,
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MYSQL_PROC_FIELD_CREATED,
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MYSQL_PROC_FIELD_MODIFIED,
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MYSQL_PROC_FIELD_SQL_MODE,
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MYSQL_PROC_FIELD_COMMENT,
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MYSQL_PROC_FIELD_COUNT
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};
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2003-10-30 10:25:45 +01:00
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Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
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/* Tells what SP_DEFAULT_ACCESS should be mapped to */
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#define SP_DEFAULT_ACCESS_MAPPING SP_CONTAINS_SQL
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2005-07-13 11:48:13 +02:00
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/*
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Close mysql.proc, opened with open_proc_table_for_read().
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SYNOPSIS
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close_proc_table()
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2005-08-08 15:46:06 +02:00
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thd Thread context
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backup Pointer to Open_tables_state instance which holds
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information about tables which were open before we
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decided to access mysql.proc.
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2005-07-13 11:48:13 +02:00
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*/
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2005-08-08 15:46:06 +02:00
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void close_proc_table(THD *thd, Open_tables_state *backup)
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2002-12-12 13:14:23 +01:00
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{
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2005-07-13 11:48:13 +02:00
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close_thread_tables(thd);
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2005-08-08 15:46:06 +02:00
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thd->restore_backup_open_tables_state(backup);
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2005-07-13 11:48:13 +02:00
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}
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Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
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2005-07-13 11:48:13 +02:00
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/*
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Open the mysql.proc table for read.
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SYNOPSIS
|
|
|
|
open_proc_table_for_read()
|
2005-08-08 15:46:06 +02:00
|
|
|
thd Thread context
|
|
|
|
backup Pointer to Open_tables_state instance where information about
|
|
|
|
currently open tables will be saved, and from which will be
|
|
|
|
restored when we will end work with mysql.proc.
|
2005-07-13 11:48:13 +02:00
|
|
|
|
|
|
|
NOTES
|
|
|
|
Thanks to restrictions which we put on opening and locking of
|
|
|
|
this table for writing, we can open and lock it for reading
|
|
|
|
even when we already have some other tables open and locked.
|
|
|
|
One must call close_proc_table() to close table opened with
|
|
|
|
this call.
|
|
|
|
|
|
|
|
RETURN
|
|
|
|
0 Error
|
|
|
|
# Pointer to TABLE object of mysql.proc
|
|
|
|
*/
|
|
|
|
|
2005-08-08 15:46:06 +02:00
|
|
|
TABLE *open_proc_table_for_read(THD *thd, Open_tables_state *backup)
|
2005-07-13 11:48:13 +02:00
|
|
|
{
|
|
|
|
TABLE_LIST tables;
|
|
|
|
TABLE *table;
|
2005-09-15 01:56:09 +02:00
|
|
|
bool not_used;
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_ENTER("open_proc_table");
|
2005-05-19 03:48:22 +02:00
|
|
|
|
2005-08-08 15:46:06 +02:00
|
|
|
thd->reset_n_backup_open_tables_state(backup);
|
2005-07-13 11:48:13 +02:00
|
|
|
|
|
|
|
bzero((char*) &tables, sizeof(tables));
|
|
|
|
tables.db= (char*) "mysql";
|
|
|
|
tables.table_name= tables.alias= (char*)"proc";
|
2005-09-15 01:56:09 +02:00
|
|
|
if (!(table= open_table(thd, &tables, thd->mem_root, ¬_used,
|
2005-07-13 11:48:13 +02:00
|
|
|
MYSQL_LOCK_IGNORE_FLUSH)))
|
2004-09-01 18:00:41 +02:00
|
|
|
{
|
2005-08-08 15:46:06 +02:00
|
|
|
thd->restore_backup_open_tables_state(backup);
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_RETURN(0);
|
2004-09-01 18:00:41 +02:00
|
|
|
}
|
2003-03-02 19:17:41 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_ASSERT(table->s->system_table);
|
|
|
|
|
|
|
|
table->reginfo.lock_type= TL_READ;
|
|
|
|
/*
|
2005-08-08 15:46:06 +02:00
|
|
|
We have to ensure we are not blocked by a flush tables, as this
|
|
|
|
could lead to a deadlock if we have other tables opened.
|
2005-07-13 11:48:13 +02:00
|
|
|
*/
|
|
|
|
if (!(thd->lock= mysql_lock_tables(thd, &table, 1,
|
2005-09-15 01:56:09 +02:00
|
|
|
MYSQL_LOCK_IGNORE_FLUSH, ¬_used)))
|
2005-07-13 11:48:13 +02:00
|
|
|
{
|
2005-08-08 15:46:06 +02:00
|
|
|
close_proc_table(thd, backup);
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_RETURN(0);
|
2003-02-28 15:07:14 +01:00
|
|
|
}
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_RETURN(table);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Open the mysql.proc table for update.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
open_proc_table_for_update()
|
|
|
|
thd Thread context
|
|
|
|
|
|
|
|
NOTES
|
|
|
|
Table opened with this call should closed using close_thread_tables().
|
|
|
|
|
|
|
|
RETURN
|
|
|
|
0 Error
|
|
|
|
# Pointer to TABLE object of mysql.proc
|
|
|
|
*/
|
|
|
|
|
|
|
|
static TABLE *open_proc_table_for_update(THD *thd)
|
|
|
|
{
|
|
|
|
TABLE_LIST tables;
|
|
|
|
TABLE *table;
|
|
|
|
DBUG_ENTER("open_proc_table");
|
|
|
|
|
|
|
|
bzero((char*) &tables, sizeof(tables));
|
|
|
|
tables.db= (char*) "mysql";
|
|
|
|
tables.table_name= tables.alias= (char*)"proc";
|
|
|
|
tables.lock_type= TL_WRITE;
|
|
|
|
|
|
|
|
table= open_ltable(thd, &tables, TL_WRITE);
|
|
|
|
|
|
|
|
DBUG_RETURN(table);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Find row in open mysql.proc table representing stored routine.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
db_find_routine_aux()
|
|
|
|
thd Thread context
|
|
|
|
type Type of routine to find (function or procedure)
|
|
|
|
name Name of routine
|
|
|
|
table TABLE object for open mysql.proc table.
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
SP_OK - Routine found
|
|
|
|
SP_KEY_NOT_FOUND- No routine with given name
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int
|
|
|
|
db_find_routine_aux(THD *thd, int type, sp_name *name, TABLE *table)
|
|
|
|
{
|
2005-07-13 13:08:13 +02:00
|
|
|
byte key[MAX_KEY_LENGTH]; // db, name, optional key length type
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_ENTER("db_find_routine_aux");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("type: %d name: %.*s",
|
2005-07-13 11:48:13 +02:00
|
|
|
type, name->m_name.length, name->m_name.str));
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2005-04-04 15:43:25 +02:00
|
|
|
/*
|
|
|
|
Create key to find row. We have to use field->store() to be able to
|
|
|
|
handle VARCHAR and CHAR fields.
|
|
|
|
Assumption here is that the three first fields in the table are
|
|
|
|
'db', 'name' and 'type' and the first key is the primary key over the
|
|
|
|
same fields.
|
|
|
|
*/
|
2005-05-31 18:36:32 +02:00
|
|
|
if (name->m_name.length > table->field[1]->field_length)
|
|
|
|
DBUG_RETURN(SP_KEY_NOT_FOUND);
|
2005-04-04 15:43:25 +02:00
|
|
|
table->field[0]->store(name->m_db.str, name->m_db.length, &my_charset_bin);
|
|
|
|
table->field[1]->store(name->m_name.str, name->m_name.length,
|
|
|
|
&my_charset_bin);
|
Added option --valgrind-mysqltest to mysql-test-run
Added flag to Field::store(longlong) to specify if value is unsigned.
This fixes bug #12750: Incorrect storage of 9999999999999999999 in DECIMAL(19, 0)
Fixed warning from valgrind in CREATE ... SELECT
Fixed double free of mysql.options if reconnect failed
mysql-test/mysql-test-run.sh:
Added option --valgrind-mysqltest to allow one to run mysqltest with valgrind
mysql-test/r/bigint.result:
Update results after fix for Field::store(longlong)
mysql-test/r/range.result:
Update results after fix for Field::store(longlong)
mysql-test/r/strict.result:
Update results after fix for Field::store(longlong)
(This fixes some wrong results when storing things into bigint columns)
mysql-test/r/type_ranges.result:
Update results after fix for Field::store(longlong)
mysql-test/t/bigint.test:
Added testing for #12750: Incorrect storage of 9999999999999999999 in DECIMAL(19, 0)
mysql-test/t/innodb.test:
Removed comments affected by this bug fix
mysql-test/t/mysqldump.test:
Fixed result to not depend on existing config files
mysql-test/t/range.test:
0xff numbers are now unsigned
mysql-test/t/strict.test:
Added errors for things that previously (wrongly) succeeded
sql-common/client.c:
Fixed double free of mysql.options if reconnect failed
sql/field.cc:
Added flag to Field::store(longlong) to specify if value is unsigned
sql/field.h:
Added flag to Field::store(longlong) to specify if value is unsigned
sql/field_conv.cc:
Fixed calls to Field::store(longlong,flag)
sql/ha_ndbcluster.cc:
Fixed calls to Field::store(longlong,flag)
sql/handler.cc:
Fixed calls to Field::store(longlong,flag)
sql/item.cc:
Fixed calls to Field::store(longlong,flag)
sql/item_sum.cc:
Fixed calls to Field::store(longlong,flag)
sql/sp.cc:
Fixed calls to Field::store(longlong,flag)
sql/sql_acl.cc:
Fixed calls to Field::store(longlong,flag)
sql/sql_help.cc:
Fixed calls to Field::store(longlong,flag)
sql/sql_show.cc:
Fixed calls to Field::store(longlong,flag)
sql/sql_table.cc:
Fixed varning from valgrind
sql/sql_udf.cc:
Fixed calls to Field::store(longlong,flag)
sql/tztime.cc:
Fixed calls to Field::store(longlong,flag)
sql/unireg.cc:
Fixed calls to Field::store(longlong,flag)
2005-09-14 00:41:44 +02:00
|
|
|
table->field[2]->store((longlong) type, TRUE);
|
2005-04-04 15:43:25 +02:00
|
|
|
key_copy(key, table->record[0], table->key_info,
|
|
|
|
table->key_info->key_length);
|
|
|
|
|
2002-12-12 13:14:23 +01:00
|
|
|
if (table->file->index_read_idx(table->record[0], 0,
|
2005-04-04 15:43:25 +02:00
|
|
|
key, table->key_info->key_length,
|
2002-12-12 13:14:23 +01:00
|
|
|
HA_READ_KEY_EXACT))
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_RETURN(SP_KEY_NOT_FOUND);
|
2002-12-12 13:14:23 +01:00
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_RETURN(SP_OK);
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
/*
|
|
|
|
Find routine definition in mysql.proc table and create corresponding
|
|
|
|
sp_head object for it.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
db_find_routine()
|
|
|
|
thd Thread context
|
|
|
|
type Type of routine (TYPE_ENUM_PROCEDURE/...)
|
|
|
|
name Name of routine
|
|
|
|
sphp Out parameter in which pointer to created sp_head
|
|
|
|
object is returned (0 in case of error).
|
|
|
|
|
|
|
|
NOTE
|
|
|
|
This function may damage current LEX during execution, so it is good
|
|
|
|
idea to create temporary LEX and make it active before calling it.
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
0 - Success
|
|
|
|
non-0 - Error (may be one of special codes like SP_KEY_NOT_FOUND)
|
|
|
|
*/
|
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
static int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
db_find_routine(THD *thd, int type, sp_name *name, sp_head **sphp)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
|
|
|
TABLE *table;
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
const char *params, *returns, *body;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
int ret;
|
2003-12-13 16:40:52 +01:00
|
|
|
const char *definer;
|
2003-05-06 18:09:20 +02:00
|
|
|
longlong created;
|
|
|
|
longlong modified;
|
2003-12-13 16:40:52 +01:00
|
|
|
st_sp_chistics chistics;
|
2003-05-06 18:09:20 +02:00
|
|
|
char *ptr;
|
|
|
|
uint length;
|
|
|
|
char buff[65];
|
2003-07-03 15:58:37 +02:00
|
|
|
String str(buff, sizeof(buff), &my_charset_bin);
|
2003-12-11 12:23:50 +01:00
|
|
|
ulong sql_mode;
|
2005-08-08 15:46:06 +02:00
|
|
|
Open_tables_state open_tables_state_backup;
|
2003-12-21 11:48:03 +01:00
|
|
|
DBUG_ENTER("db_find_routine");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("type: %d name: %.*s",
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
type, name->m_name.length, name->m_name.str));
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
*sphp= 0; // In case of errors
|
2005-08-08 15:46:06 +02:00
|
|
|
if (!(table= open_proc_table_for_read(thd, &open_tables_state_backup)))
|
2005-07-13 11:48:13 +02:00
|
|
|
DBUG_RETURN(SP_OPEN_TABLE_FAILED);
|
|
|
|
|
|
|
|
if ((ret= db_find_routine_aux(thd, type, name, table)) != SP_OK)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
goto done;
|
2003-10-30 10:25:45 +01:00
|
|
|
|
2005-01-06 12:00:13 +01:00
|
|
|
if (table->s->fields != MYSQL_PROC_FIELD_COUNT)
|
2003-10-30 10:25:45 +01:00
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
2004-10-14 18:07:09 +02:00
|
|
|
bzero((char *)&chistics, sizeof(chistics));
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((ptr= get_field(thd->mem_root,
|
2004-10-14 18:07:09 +02:00
|
|
|
table->field[MYSQL_PROC_FIELD_ACCESS])) == NULL)
|
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
switch (ptr[0]) {
|
|
|
|
case 'N':
|
|
|
|
chistics.daccess= SP_NO_SQL;
|
|
|
|
break;
|
|
|
|
case 'C':
|
|
|
|
chistics.daccess= SP_CONTAINS_SQL;
|
|
|
|
break;
|
|
|
|
case 'R':
|
|
|
|
chistics.daccess= SP_READS_SQL_DATA;
|
|
|
|
break;
|
|
|
|
case 'M':
|
|
|
|
chistics.daccess= SP_MODIFIES_SQL_DATA;
|
|
|
|
break;
|
|
|
|
default:
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
chistics.daccess= SP_DEFAULT_ACCESS_MAPPING;
|
2004-10-14 18:07:09 +02:00
|
|
|
}
|
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((ptr= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_DETERMINISTIC])) == NULL)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
2003-12-13 16:40:52 +01:00
|
|
|
chistics.detistic= (ptr[0] == 'N' ? FALSE : TRUE);
|
2003-05-06 18:09:20 +02:00
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((ptr= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_SECURITY_TYPE])) == NULL)
|
2003-05-06 18:09:20 +02:00
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
2004-10-14 18:07:09 +02:00
|
|
|
chistics.suid= (ptr[0] == 'I' ? SP_IS_NOT_SUID : SP_IS_SUID);
|
2003-05-06 18:09:20 +02:00
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((params= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_PARAM_LIST])) == NULL)
|
|
|
|
{
|
|
|
|
params= "";
|
|
|
|
}
|
2003-05-06 18:09:20 +02:00
|
|
|
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
if (type == TYPE_ENUM_PROCEDURE)
|
|
|
|
returns= "";
|
2004-11-09 02:58:44 +01:00
|
|
|
else if ((returns= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_RETURNS])) == NULL)
|
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((body= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_BODY])) == NULL)
|
2003-05-06 18:09:20 +02:00
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
|
|
|
|
// Get additional information
|
2004-11-09 02:58:44 +01:00
|
|
|
if ((definer= get_field(thd->mem_root,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_DEFINER])) == NULL)
|
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
modified= table->field[MYSQL_PROC_FIELD_MODIFIED]->val_int();
|
|
|
|
created= table->field[MYSQL_PROC_FIELD_CREATED]->val_int();
|
2003-05-06 18:09:20 +02:00
|
|
|
|
2003-12-21 01:07:45 +01:00
|
|
|
sql_mode= (ulong) table->field[MYSQL_PROC_FIELD_SQL_MODE]->val_int();
|
2003-12-11 12:23:50 +01:00
|
|
|
|
2003-10-30 10:25:45 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_COMMENT]->val_str(&str, &str);
|
|
|
|
|
2003-05-06 18:09:20 +02:00
|
|
|
ptr= 0;
|
2003-06-02 11:25:01 +02:00
|
|
|
if ((length= str.length()))
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
ptr= thd->strmake(str.ptr(), length);
|
2003-12-13 16:40:52 +01:00
|
|
|
chistics.comment.str= ptr;
|
|
|
|
chistics.comment.length= length;
|
2003-05-06 18:09:20 +02:00
|
|
|
|
2005-08-08 15:46:06 +02:00
|
|
|
close_proc_table(thd, &open_tables_state_backup);
|
2005-07-13 11:48:13 +02:00
|
|
|
table= 0;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
ret= db_load_routine(thd, type, name, sphp,
|
|
|
|
sql_mode, params, returns, body, chistics,
|
|
|
|
definer, created, modified);
|
|
|
|
|
|
|
|
done:
|
|
|
|
if (table)
|
|
|
|
close_proc_table(thd, &open_tables_state_backup);
|
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2004-03-11 17:18:59 +01:00
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
static int
|
|
|
|
db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
|
|
|
|
ulong sql_mode, const char *params, const char *returns,
|
|
|
|
const char *body, st_sp_chistics &chistics,
|
|
|
|
const char *definer, longlong created, longlong modified)
|
|
|
|
{
|
2006-01-05 23:47:49 +01:00
|
|
|
LEX *old_lex= thd->lex, newlex;
|
2005-11-23 00:11:19 +01:00
|
|
|
String defstr;
|
2006-09-27 16:21:29 +02:00
|
|
|
char old_db_buf[NAME_LEN+1];
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
LEX_STRING old_db= { old_db_buf, sizeof(old_db_buf) };
|
2005-11-23 00:11:19 +01:00
|
|
|
bool dbchanged;
|
|
|
|
ulong old_sql_mode= thd->variables.sql_mode;
|
2006-01-05 23:47:49 +01:00
|
|
|
ha_rows old_select_limit= thd->variables.select_limit;
|
|
|
|
sp_rcontext *old_spcont= thd->spcont;
|
2006-03-02 13:18:49 +01:00
|
|
|
|
2006-09-27 16:21:29 +02:00
|
|
|
char definer_user_name_holder[USERNAME_LENGTH + 1];
|
2006-03-02 13:18:49 +01:00
|
|
|
LEX_STRING_WITH_INIT definer_user_name(definer_user_name_holder,
|
2006-09-27 16:21:29 +02:00
|
|
|
USERNAME_LENGTH);
|
2006-03-02 13:18:49 +01:00
|
|
|
|
|
|
|
char definer_host_name_holder[HOSTNAME_LENGTH + 1];
|
|
|
|
LEX_STRING_WITH_INIT definer_host_name(definer_host_name_holder,
|
|
|
|
HOSTNAME_LENGTH);
|
|
|
|
|
2006-01-05 23:47:49 +01:00
|
|
|
int ret;
|
2005-11-23 00:11:19 +01:00
|
|
|
|
|
|
|
thd->variables.sql_mode= sql_mode;
|
|
|
|
thd->variables.select_limit= HA_POS_ERROR;
|
|
|
|
|
|
|
|
thd->lex= &newlex;
|
|
|
|
newlex.current_select= NULL;
|
|
|
|
|
2006-03-02 13:18:49 +01:00
|
|
|
parse_user(definer, strlen(definer),
|
|
|
|
definer_user_name.str, &definer_user_name.length,
|
|
|
|
definer_host_name.str, &definer_host_name.length);
|
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
defstr.set_charset(system_charset_info);
|
2006-03-02 13:18:49 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
We have to add DEFINER clause and provide proper routine characterstics in
|
|
|
|
routine definition statement that we build here to be able to use this
|
|
|
|
definition for SHOW CREATE PROCEDURE later.
|
|
|
|
*/
|
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
if (!create_string(thd, &defstr,
|
|
|
|
type,
|
|
|
|
name,
|
|
|
|
params, strlen(params),
|
|
|
|
returns, strlen(returns),
|
|
|
|
body, strlen(body),
|
2006-03-02 13:18:49 +01:00
|
|
|
&chistics, &definer_user_name, &definer_host_name))
|
2006-01-05 23:47:49 +01:00
|
|
|
{
|
|
|
|
ret= SP_INTERNAL_ERROR;
|
2005-11-23 00:11:19 +01:00
|
|
|
goto end;
|
2006-01-05 23:47:49 +01:00
|
|
|
}
|
2004-03-17 12:09:03 +01:00
|
|
|
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
if ((ret= sp_use_new_db(thd, name->m_db, &old_db, 1, &dbchanged)))
|
2005-11-23 00:11:19 +01:00
|
|
|
goto end;
|
2003-07-01 17:19:48 +02:00
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
lex_start(thd, (uchar*)defstr.c_ptr(), defstr.length());
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2005-11-23 00:29:25 +01:00
|
|
|
thd->spcont= 0;
|
2006-03-10 01:44:08 +01:00
|
|
|
if (MYSQLparse(thd) || thd->is_fatal_error || newlex.sphead == NULL)
|
2005-11-23 00:11:19 +01:00
|
|
|
{
|
|
|
|
sp_head *sp= newlex.sphead;
|
|
|
|
|
2007-03-27 19:55:01 +02:00
|
|
|
if (dbchanged && (ret= mysql_change_db(thd, &old_db, TRUE)))
|
2005-11-23 00:11:19 +01:00
|
|
|
goto end;
|
|
|
|
delete sp;
|
|
|
|
ret= SP_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2007-03-27 19:55:01 +02:00
|
|
|
if (dbchanged && (ret= mysql_change_db(thd, &old_db, TRUE)))
|
2005-11-23 01:49:44 +01:00
|
|
|
goto end;
|
2005-11-23 00:11:19 +01:00
|
|
|
*sphp= newlex.sphead;
|
2006-03-02 13:18:49 +01:00
|
|
|
(*sphp)->set_definer(&definer_user_name, &definer_host_name);
|
2005-11-23 01:49:44 +01:00
|
|
|
(*sphp)->set_info(created, modified, &chistics, sql_mode);
|
2005-11-23 00:11:19 +01:00
|
|
|
(*sphp)->optimize();
|
|
|
|
}
|
2005-11-23 01:49:44 +01:00
|
|
|
end:
|
2006-05-04 14:30:38 +02:00
|
|
|
lex_end(thd->lex);
|
2006-01-05 23:47:49 +01:00
|
|
|
thd->spcont= old_spcont;
|
2005-11-23 00:11:19 +01:00
|
|
|
thd->variables.sql_mode= old_sql_mode;
|
2006-01-05 23:47:49 +01:00
|
|
|
thd->variables.select_limit= old_select_limit;
|
|
|
|
thd->lex= old_lex;
|
2005-11-23 00:11:19 +01:00
|
|
|
return ret;
|
2002-12-12 13:14:23 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2005-03-04 22:14:35 +01:00
|
|
|
static void
|
|
|
|
sp_returns_type(THD *thd, String &result, sp_head *sp)
|
|
|
|
{
|
2005-03-10 20:42:57 +01:00
|
|
|
TABLE table;
|
2005-03-04 22:14:35 +01:00
|
|
|
Field *field;
|
2005-03-10 20:42:57 +01:00
|
|
|
bzero(&table, sizeof(table));
|
|
|
|
table.in_use= thd;
|
|
|
|
table.s = &table.share_not_to_be_used;
|
2005-12-07 15:01:17 +01:00
|
|
|
field= sp->create_result_field(0, 0, &table);
|
2005-03-04 22:14:35 +01:00
|
|
|
field->sql_type(result);
|
2006-07-27 15:57:43 +02:00
|
|
|
|
|
|
|
if (field->has_charset())
|
|
|
|
{
|
|
|
|
result.append(STRING_WITH_LEN(" CHARSET "));
|
|
|
|
result.append(field->charset()->csname);
|
|
|
|
}
|
|
|
|
|
2005-03-04 22:14:35 +01:00
|
|
|
delete field;
|
|
|
|
}
|
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
static int
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
db_create_routine(THD *thd, int type, sp_head *sp)
|
2002-12-12 13:14:23 +01:00
|
|
|
{
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
int ret;
|
2002-12-12 13:14:23 +01:00
|
|
|
TABLE *table;
|
2006-01-11 00:07:40 +01:00
|
|
|
char definer[USER_HOST_BUFF_SIZE];
|
2003-12-21 11:48:03 +01:00
|
|
|
DBUG_ENTER("db_create_routine");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("type: %d name: %.*s",type,sp->m_name.length,
|
|
|
|
sp->m_name.str));
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
if (!(table= open_proc_table_for_update(thd)))
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
ret= SP_OPEN_TABLE_FAILED;
|
|
|
|
else
|
2002-12-12 13:14:23 +01:00
|
|
|
{
|
2005-01-06 12:00:13 +01:00
|
|
|
restore_record(table, s->default_values); // Get default values for fields
|
2006-03-02 13:18:49 +01:00
|
|
|
|
|
|
|
/* NOTE: all needed privilege checks have been already done. */
|
|
|
|
strxmov(definer, thd->lex->definer->user.str, "@",
|
|
|
|
thd->lex->definer->host.str, NullS);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2005-01-06 12:00:13 +01:00
|
|
|
if (table->s->fields != MYSQL_PROC_FIELD_COUNT)
|
2003-10-30 10:25:45 +01:00
|
|
|
{
|
|
|
|
ret= SP_GET_FIELD_FAILED;
|
|
|
|
goto done;
|
|
|
|
}
|
2006-02-16 13:40:37 +01:00
|
|
|
|
2006-03-28 15:06:06 +02:00
|
|
|
if (system_charset_info->cset->numchars(system_charset_info,
|
|
|
|
sp->m_name.str,
|
|
|
|
sp->m_name.str+sp->m_name.length) >
|
|
|
|
table->field[MYSQL_PROC_FIELD_NAME]->char_length())
|
2005-05-31 18:36:32 +02:00
|
|
|
{
|
|
|
|
ret= SP_BAD_IDENTIFIER;
|
|
|
|
goto done;
|
|
|
|
}
|
2005-07-27 03:08:49 +02:00
|
|
|
if (sp->m_body.length > table->field[MYSQL_PROC_FIELD_BODY]->field_length)
|
|
|
|
{
|
|
|
|
ret= SP_BODY_TOO_LONG;
|
|
|
|
goto done;
|
|
|
|
}
|
2004-03-11 17:18:59 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_DB]->
|
|
|
|
store(sp->m_db.str, sp->m_db.length, system_charset_info);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_NAME]->
|
|
|
|
store(sp->m_name.str, sp->m_name.length, system_charset_info);
|
|
|
|
table->field[MYSQL_PROC_FIELD_TYPE]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)type, 1);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_SPECIFIC_NAME]->
|
|
|
|
store(sp->m_name.str, sp->m_name.length, system_charset_info);
|
2004-10-14 18:07:09 +02:00
|
|
|
if (sp->m_chistics->daccess != SP_DEFAULT_ACCESS)
|
|
|
|
table->field[MYSQL_PROC_FIELD_ACCESS]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)sp->m_chistics->daccess, 1);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_DETERMINISTIC]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)(sp->m_chistics->detistic ? 1 : 2), 1);
|
2004-10-14 18:07:09 +02:00
|
|
|
if (sp->m_chistics->suid != SP_IS_DEFAULT_SUID)
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_SECURITY_TYPE]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)sp->m_chistics->suid, 1);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_PARAM_LIST]->
|
|
|
|
store(sp->m_params.str, sp->m_params.length, system_charset_info);
|
2005-03-04 22:14:35 +01:00
|
|
|
if (sp->m_type == TYPE_ENUM_FUNCTION)
|
|
|
|
{
|
|
|
|
String retstr(64);
|
|
|
|
sp_returns_type(thd, retstr, sp);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_RETURNS]->
|
2005-03-04 22:14:35 +01:00
|
|
|
store(retstr.ptr(), retstr.length(), system_charset_info);
|
|
|
|
}
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_BODY]->
|
|
|
|
store(sp->m_body.str, sp->m_body.length, system_charset_info);
|
|
|
|
table->field[MYSQL_PROC_FIELD_DEFINER]->
|
2003-12-13 16:40:52 +01:00
|
|
|
store(definer, (uint)strlen(definer), system_charset_info);
|
2003-10-30 10:25:45 +01:00
|
|
|
((Field_timestamp *)table->field[MYSQL_PROC_FIELD_CREATED])->set_time();
|
2004-09-08 11:42:18 +02:00
|
|
|
((Field_timestamp *)table->field[MYSQL_PROC_FIELD_MODIFIED])->set_time();
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
table->field[MYSQL_PROC_FIELD_SQL_MODE]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)thd->variables.sql_mode, 1);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
if (sp->m_chistics->comment.str)
|
|
|
|
table->field[MYSQL_PROC_FIELD_COMMENT]->
|
|
|
|
store(sp->m_chistics->comment.str, sp->m_chistics->comment.length,
|
|
|
|
system_charset_info);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2005-11-23 00:29:25 +01:00
|
|
|
if ((sp->m_type == TYPE_ENUM_FUNCTION) &&
|
|
|
|
!trust_function_creators && mysql_bin_log.is_open())
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
{
|
|
|
|
if (!sp->m_chistics->detistic)
|
|
|
|
{
|
|
|
|
/*
|
2005-11-23 00:29:25 +01:00
|
|
|
Note that this test is not perfect; one could use
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
a non-deterministic read-only function in an update statement.
|
|
|
|
*/
|
|
|
|
enum enum_sp_data_access access=
|
|
|
|
(sp->m_chistics->daccess == SP_DEFAULT_ACCESS) ?
|
|
|
|
SP_DEFAULT_ACCESS_MAPPING : sp->m_chistics->daccess;
|
|
|
|
if (access == SP_CONTAINS_SQL ||
|
|
|
|
access == SP_MODIFIES_SQL_DATA)
|
|
|
|
{
|
|
|
|
my_message(ER_BINLOG_UNSAFE_ROUTINE,
|
|
|
|
ER(ER_BINLOG_UNSAFE_ROUTINE), MYF(0));
|
|
|
|
ret= SP_INTERNAL_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
}
|
2005-09-15 21:29:07 +02:00
|
|
|
if (!(thd->security_ctx->master_access & SUPER_ACL))
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
{
|
|
|
|
my_message(ER_BINLOG_CREATE_ROUTINE_NEED_SUPER,
|
|
|
|
ER(ER_BINLOG_CREATE_ROUTINE_NEED_SUPER), MYF(0));
|
|
|
|
ret= SP_INTERNAL_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
ret= SP_OK;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
if (table->file->write_row(table->record[0]))
|
|
|
|
ret= SP_WRITE_ROW_FAILED;
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
else if (mysql_bin_log.is_open())
|
|
|
|
{
|
|
|
|
thd->clear_error();
|
2006-03-02 13:18:49 +01:00
|
|
|
|
|
|
|
String log_query;
|
|
|
|
log_query.set_charset(system_charset_info);
|
|
|
|
log_query.append(STRING_WITH_LEN("CREATE "));
|
|
|
|
append_definer(thd, &log_query, &thd->lex->definer->user,
|
|
|
|
&thd->lex->definer->host);
|
2006-07-28 00:49:18 +02:00
|
|
|
log_query.append(thd->lex->stmt_definition_begin,
|
|
|
|
(char *)sp->m_body_begin -
|
|
|
|
thd->lex->stmt_definition_begin +
|
|
|
|
sp->m_body.length);
|
2006-03-02 13:18:49 +01:00
|
|
|
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
/* Such a statement can always go directly to binlog, no trans cache */
|
2006-03-02 13:18:49 +01:00
|
|
|
Query_log_event qinfo(thd, log_query.c_ptr(), log_query.length(), 0,
|
|
|
|
FALSE);
|
Approximative fixes for BUG#2610,2611,9100 i.e. WL#2146 binlogging/replication of routines (stored procs and functions).
Approximative, because it's using our binlogging way (what we call "query"-level) and this is not as good as record-level binlog (5.1) would be. It imposes several
limitations to routines, and has caveats (which I'll document, and for which the server will try to issue errors but that is not always possible).
Reason I don't propagate caller info to the binlog as planned is that on master and slave
users may be different; even with that some caveats would remain.
mysql-test/mysql-test-run.sh:
In the testsuite we know what we do, we are not creating nasty routines, and breaking binlog is ok except in rpl_sp.
mysql-test/r/blackhole.result:
Updating results now that 4.1 has been merged
mysql-test/valgrind.supp:
Some suppressions for Valgrind (useful on my machine Suse 9.1);
this is just adding to the already existing suppressions of pthread and dl.
sql/item_func.cc:
Don't binlog the substatements when executing a function. If the function
is declared to modify data and does not complete, warning "broken binlog".
Note that SELECT myfunc() will not be binlogged even if myfunc() updates data (will be documented);
but INSERT INTO t VALUES(myfunc()) will be binlogged (what decides is if the caller
gets binlogged; the function changes nothing to binlogging).
sql/log_event.cc:
Just making functions which can be re-used when we binlog more strings
in status_vars in Query_log_event (e.g. one day "user", "host").
sql/log_event.h:
comment
sql/mysql_priv.h:
--log-bin-trust-routine-creators
sql/mysqld.cc:
--log-bin-trust-routine-creators
sql/set_var.cc:
--log-bin-trust-routine-creators
sql/share/errmsg.txt:
error messages to warn about problems with routines and binlog
sql/slave.cc:
If in a routine, replication table inclusion/exclusion rules always answer "replicate!" (see comment in code).
sql/sp.cc:
If binlog is on: errors if one wants to create a non-deterministic update routine
(repeatability problem - note that the test is not perfect for functions) or does not have SUPER (because routines can easily
be made to destroy slave's data with just CREATE ROUTINE and EXECUTE priv on master).
--log-bin-trust-routine-creators removes these errors.
Binlogging of CREATE PROCEDURE|FUNCTION.
sql/sql_acl.cc:
No thd==0 in tables_ok().
sql/sql_parse.cc:
Binlogging of CALL (and not of the substatements of the SP).
If SP returns error, we don't binlog it (see comment); we push warning in this case.
Binlogging of ALTER|DROP PROCEDURE|FUNCTION with safety messages.
2005-05-05 14:20:53 +02:00
|
|
|
mysql_bin_log.write(&qinfo);
|
|
|
|
}
|
|
|
|
|
2002-12-12 13:14:23 +01:00
|
|
|
}
|
|
|
|
|
2003-10-30 10:25:45 +01:00
|
|
|
done:
|
2003-02-28 15:07:14 +01:00
|
|
|
close_thread_tables(thd);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
static int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
db_drop_routine(THD *thd, int type, sp_name *name)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
|
|
|
TABLE *table;
|
|
|
|
int ret;
|
2003-12-21 11:48:03 +01:00
|
|
|
DBUG_ENTER("db_drop_routine");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("type: %d name: %.*s",
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
type, name->m_name.length, name->m_name.str));
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
if (!(table= open_proc_table_for_update(thd)))
|
|
|
|
DBUG_RETURN(SP_OPEN_TABLE_FAILED);
|
|
|
|
if ((ret= db_find_routine_aux(thd, type, name, table)) == SP_OK)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
|
|
|
if (table->file->delete_row(table->record[0]))
|
|
|
|
ret= SP_DELETE_ROW_FAILED;
|
|
|
|
}
|
2006-10-03 19:38:25 +02:00
|
|
|
|
|
|
|
if (ret == SP_OK)
|
|
|
|
{
|
|
|
|
if (mysql_bin_log.is_open())
|
|
|
|
{
|
|
|
|
thd->clear_error();
|
|
|
|
Query_log_event qinfo(thd, thd->query, thd->query_length, 0, FALSE);
|
|
|
|
mysql_bin_log.write(&qinfo);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
close_thread_tables(thd);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
static int
|
Fixed BUG#6027: Stored procedures can be renamed.
Removed the support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
mysql-test/r/sp-error.result:
Removed test for renaming procedures with alter.
mysql-test/r/sp.result:
Removed test for renaming procedures with alter.
mysql-test/t/sp-error.test:
Removed test for renaming procedures with alter.
mysql-test/t/sp.test:
Removed test for renaming procedures with alter.
sql/sp.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sp.h:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_parse.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_yacc.yy:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
2004-10-22 19:05:17 +02:00
|
|
|
db_update_routine(THD *thd, int type, sp_name *name, st_sp_chistics *chistics)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
|
|
|
TABLE *table;
|
|
|
|
int ret;
|
2003-12-21 11:48:03 +01:00
|
|
|
DBUG_ENTER("db_update_routine");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("type: %d name: %.*s",
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
type, name->m_name.length, name->m_name.str));
|
2003-11-17 18:21:36 +01:00
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
if (!(table= open_proc_table_for_update(thd)))
|
|
|
|
DBUG_RETURN(SP_OPEN_TABLE_FAILED);
|
|
|
|
if ((ret= db_find_routine_aux(thd, type, name, table)) == SP_OK)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
|
|
|
store_record(table,record[1]);
|
2004-11-03 11:39:38 +01:00
|
|
|
table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
|
2003-11-17 18:21:36 +01:00
|
|
|
((Field_timestamp *)table->field[MYSQL_PROC_FIELD_MODIFIED])->set_time();
|
2004-10-14 18:07:09 +02:00
|
|
|
if (chistics->suid != SP_IS_DEFAULT_SUID)
|
|
|
|
table->field[MYSQL_PROC_FIELD_SECURITY_TYPE]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)chistics->suid, 1);
|
2004-10-14 18:07:09 +02:00
|
|
|
if (chistics->daccess != SP_DEFAULT_ACCESS)
|
|
|
|
table->field[MYSQL_PROC_FIELD_ACCESS]->
|
2006-11-30 17:25:05 +01:00
|
|
|
store((longlong)chistics->daccess, 1);
|
2003-12-10 19:05:37 +01:00
|
|
|
if (chistics->comment.str)
|
|
|
|
table->field[MYSQL_PROC_FIELD_COMMENT]->store(chistics->comment.str,
|
|
|
|
chistics->comment.length,
|
2003-11-17 18:21:36 +01:00
|
|
|
system_charset_info);
|
|
|
|
if ((table->file->update_row(table->record[1],table->record[0])))
|
|
|
|
ret= SP_WRITE_ROW_FAILED;
|
|
|
|
}
|
2006-10-03 19:38:25 +02:00
|
|
|
|
|
|
|
if (ret == SP_OK)
|
|
|
|
{
|
|
|
|
if (mysql_bin_log.is_open())
|
|
|
|
{
|
|
|
|
thd->clear_error();
|
|
|
|
Query_log_event qinfo(thd, thd->query, thd->query_length, 0, FALSE);
|
|
|
|
mysql_bin_log.write(&qinfo);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
close_thread_tables(thd);
|
2003-11-17 18:21:36 +01:00
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
struct st_used_field
|
|
|
|
{
|
|
|
|
const char *field_name;
|
|
|
|
uint field_length;
|
|
|
|
enum enum_field_types field_type;
|
|
|
|
Field *field;
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct st_used_field init_fields[]=
|
|
|
|
{
|
2004-03-11 17:18:59 +01:00
|
|
|
{ "Db", NAME_LEN, MYSQL_TYPE_STRING, 0},
|
2003-11-17 18:21:36 +01:00
|
|
|
{ "Name", NAME_LEN, MYSQL_TYPE_STRING, 0},
|
|
|
|
{ "Type", 9, MYSQL_TYPE_STRING, 0},
|
2003-12-10 19:05:37 +01:00
|
|
|
{ "Definer", 77, MYSQL_TYPE_STRING, 0},
|
2003-11-17 18:21:36 +01:00
|
|
|
{ "Modified", 0, MYSQL_TYPE_TIMESTAMP, 0},
|
|
|
|
{ "Created", 0, MYSQL_TYPE_TIMESTAMP, 0},
|
2003-12-10 19:05:37 +01:00
|
|
|
{ "Security_type", 1, MYSQL_TYPE_STRING, 0},
|
2003-11-17 18:21:36 +01:00
|
|
|
{ "Comment", NAME_LEN, MYSQL_TYPE_STRING, 0},
|
|
|
|
{ 0, 0, MYSQL_TYPE_STRING, 0}
|
|
|
|
};
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-20 15:07:22 +01:00
|
|
|
static int
|
|
|
|
print_field_values(THD *thd, TABLE *table,
|
|
|
|
struct st_used_field *used_fields,
|
|
|
|
int type, const char *wild)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
|
|
|
Protocol *protocol= thd->protocol;
|
|
|
|
|
|
|
|
if (table->field[MYSQL_PROC_FIELD_TYPE]->val_int() == type)
|
|
|
|
{
|
2004-03-11 17:18:59 +01:00
|
|
|
String db_string;
|
|
|
|
String name_string;
|
2003-11-17 18:21:36 +01:00
|
|
|
struct st_used_field *used_field= used_fields;
|
2003-11-20 15:07:22 +01:00
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
if (get_field(thd->mem_root, used_field->field, &db_string))
|
2004-03-11 17:18:59 +01:00
|
|
|
db_string.set_ascii("", 0);
|
|
|
|
used_field+= 1;
|
2004-11-09 02:58:44 +01:00
|
|
|
get_field(thd->mem_root, used_field->field, &name_string);
|
2004-03-11 17:18:59 +01:00
|
|
|
|
|
|
|
if (!wild || !wild[0] || !wild_compare(name_string.ptr(), wild, 0))
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
|
|
|
protocol->prepare_for_resend();
|
2004-03-11 17:18:59 +01:00
|
|
|
protocol->store(&db_string);
|
|
|
|
protocol->store(&name_string);
|
2003-11-17 18:21:36 +01:00
|
|
|
for (used_field++;
|
|
|
|
used_field->field_name;
|
|
|
|
used_field++)
|
|
|
|
{
|
|
|
|
switch (used_field->field_type) {
|
|
|
|
case MYSQL_TYPE_TIMESTAMP:
|
2003-11-20 15:07:22 +01:00
|
|
|
{
|
|
|
|
TIME tmp_time;
|
2003-12-10 19:05:37 +01:00
|
|
|
|
|
|
|
bzero((char *)&tmp_time, sizeof(tmp_time));
|
2003-11-20 15:07:22 +01:00
|
|
|
((Field_timestamp *) used_field->field)->get_time(&tmp_time);
|
|
|
|
protocol->store(&tmp_time);
|
|
|
|
}
|
|
|
|
break;
|
2003-11-17 18:21:36 +01:00
|
|
|
default:
|
2003-11-20 15:07:22 +01:00
|
|
|
{
|
2004-03-11 17:18:59 +01:00
|
|
|
String tmp_string;
|
2003-12-10 19:05:37 +01:00
|
|
|
|
2004-11-09 02:58:44 +01:00
|
|
|
get_field(thd->mem_root, used_field->field, &tmp_string);
|
2004-03-11 17:18:59 +01:00
|
|
|
protocol->store(&tmp_string);
|
2003-11-20 15:07:22 +01:00
|
|
|
}
|
|
|
|
break;
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if (protocol->write())
|
2003-11-20 15:07:22 +01:00
|
|
|
return SP_INTERNAL_ERROR;
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
}
|
2006-10-03 19:38:25 +02:00
|
|
|
|
2003-11-20 15:07:22 +01:00
|
|
|
return SP_OK;
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-20 15:07:22 +01:00
|
|
|
static int
|
2003-11-17 18:21:36 +01:00
|
|
|
db_show_routine_status(THD *thd, int type, const char *wild)
|
|
|
|
{
|
|
|
|
TABLE *table;
|
|
|
|
TABLE_LIST tables;
|
2003-11-20 15:07:22 +01:00
|
|
|
int res;
|
2003-12-21 11:48:03 +01:00
|
|
|
DBUG_ENTER("db_show_routine_status");
|
2003-11-17 18:21:36 +01:00
|
|
|
|
|
|
|
memset(&tables, 0, sizeof(tables));
|
|
|
|
tables.db= (char*)"mysql";
|
2005-01-06 12:00:13 +01:00
|
|
|
tables.table_name= tables.alias= (char*)"proc";
|
2003-11-17 18:21:36 +01:00
|
|
|
|
|
|
|
if (! (table= open_ltable(thd, &tables, TL_READ)))
|
|
|
|
{
|
2003-11-20 15:07:22 +01:00
|
|
|
res= SP_OPEN_TABLE_FAILED;
|
|
|
|
goto done;
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Item *item;
|
|
|
|
List<Item> field_list;
|
|
|
|
struct st_used_field *used_field;
|
2004-09-14 18:28:29 +02:00
|
|
|
TABLE_LIST *leaves= 0;
|
2003-11-17 18:21:36 +01:00
|
|
|
st_used_field used_fields[array_elements(init_fields)];
|
2003-11-20 15:07:22 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
memcpy((char*) used_fields, (char*) init_fields, sizeof(used_fields));
|
|
|
|
/* Init header */
|
|
|
|
for (used_field= &used_fields[0];
|
|
|
|
used_field->field_name;
|
|
|
|
used_field++)
|
|
|
|
{
|
|
|
|
switch (used_field->field_type) {
|
|
|
|
case MYSQL_TYPE_TIMESTAMP:
|
|
|
|
field_list.push_back(item=new Item_datetime(used_field->field_name));
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
field_list.push_back(item=new Item_empty_string(used_field->field_name,
|
|
|
|
used_field->
|
|
|
|
field_length));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* Print header */
|
Port of cursors to be pushed into 5.0 tree:
- client side part is simple and may be considered stable
- server side part now just joggles with THD state to save execution
state and has no additional locking wisdom.
Lot's of it are to be rewritten.
include/mysql.h:
Cursor patch to push into the main tree, client library part (considered
stable):
- new statement attribute STMT_ATTR_CURSOR_TYPE
- MYSQL_STMT::flags to store statement cursor type
- MYSQL_STMT::server_status to store server status (i. e. if the server
was able to open a cursor for this query).
include/mysql_com.h:
Cursor patch to push into the main tree, client library part (considered
stable):
- new COMmand, COM_FETCH, to fetch K rows from read-only cursor.
By design should support scrollable cursors as well.
- a few new server statuses:
SERVER_STATUS_CURSOR_EXISTS is sent by server in reply to COM_EXECUTE,
when cursor was successfully opened for this query
SERVER_STATUS_LAST_ROW_SENT is sent along with the last row to prevent one
more round trip just for finding out that all rows were fetched from
this cursor (this is server mem savier also).
- and finally, all possible values of STMT_ATTR_CURSOR_TYPE,
while now we support only CURSORT_TYPE_NO_CURSOR and
CURSOR_TYPE_READ_ONLY
libmysql/libmysql.c:
Cursor patch to push into the main tree, client library part (considered
stable):
- simple additions to mysql_stmt_fetch implementation to read data
from an opened cursor: we can read up to iteration count rows per
one request; read rows are buffered in the same way as rows of
mysql_stmt_store_result.
- now send stmt->flags to server to let him now if we wish to have
a cursor for this statement.
- support for setting/getting statement cursor type.
libmysqld/examples/Makefile.am:
Testing cursors was originally implemented in C++. Now when these tests
go into client_test, it's time to convert it to C++ as well.
libmysqld/lib_sql.cc:
- cleanup: send_fields flags are now named.
sql/ha_innodb.cc:
- cleanup: send_fields flags are now named.
sql/mysql_priv.h:
- cursors support: declaration for server-side handler of COM_FETCH
sql/protocol.cc:
- cleanup: send_fields flags are now named.
- we can't anymore assert that field_types[field_pos] is sensible:
if we have COM_EXCUTE(stmt1), COM_EXECUTE(stmt2), COM_FETCH(stmt1)
field_types[field_pos] will point to fields of stmt2.
sql/protocol.h:
- cleanup: send_fields flag_s_ are now named.
sql/protocol_cursor.cc:
- cleanup: send_fields flags are now named.
sql/repl_failsafe.cc:
- cleanup: send_fields flags are now named.
sql/slave.cc:
- cleanup: send_fields flags are now named.
sql/sp.cc:
- cleanup: send_fields flags are now named.
sql/sp_head.cc:
- cleanup: send_fields flags are now named.
sql/sql_acl.cc:
- cleanup: send_fields flags are now named.
sql/sql_class.cc:
- cleanup: send_fields flags are now named.
sql/sql_class.h:
- cleanup: send_fields flags are now named.
sql/sql_error.cc:
- cleanup: send_fields flags are now named.
sql/sql_handler.cc:
- cleanup: send_fields flags are now named.
sql/sql_help.cc:
- cleanup: send_fields flags are now named.
sql/sql_parse.cc:
Server side support for cursors:
- handle COM_FETCH
- enforce assumption that whenever we free thd->free_list,
we reset it to zero. This way it's much easier to handle free_list
in prepared statements implementation.
sql/sql_prepare.cc:
Server side support for cursors:
- implementation of mysql_stmt_fetch (fetch some rows from open cursor).
- management of cursors memory is quite tricky now.
- execute_stmt can't be reused anymore in mysql_stmt_execute and
mysql_sql_stmt_execute
sql/sql_repl.cc:
- cleanup: send_fields flags are now named.
sql/sql_select.cc:
Server side support for cursors:
- implementation of Cursor::open, Cursor::fetch (buggy when it comes to
non-equi joins), cursor cleanups.
- -4 -3 -0 constants indicating return value of sub_select and end_send are
to be renamed to something more readable:
it turned out to be not so simple, so it should come with the other patch.
sql/sql_select.h:
Server side support for cursors:
- declaration of Cursor class.
- JOIN::fetch_limit contains runtime value of rows fetched via cursor.
sql/sql_show.cc:
- cleanup: send_fields flags are now named.
sql/sql_table.cc:
- cleanup: send_fields flags are now named.
sql/sql_union.cc:
- if there was a cursor, don't cleanup unit: we'll need it to fetch
the rest of the rows.
tests/Makefile.am:
Now client_test is in C++.
tests/client_test.cc:
A few elementary tests for cursors.
BitKeeper/etc/ignore:
Added libmysqld/examples/client_test.cc to the ignore list
2004-08-03 12:32:21 +02:00
|
|
|
if (thd->protocol->send_fields(&field_list, Protocol::SEND_NUM_ROWS |
|
|
|
|
Protocol::SEND_EOF))
|
2003-11-20 15:07:22 +01:00
|
|
|
{
|
|
|
|
res= SP_INTERNAL_ERROR;
|
2003-11-17 18:21:36 +01:00
|
|
|
goto err_case;
|
2003-11-20 15:07:22 +01:00
|
|
|
}
|
2003-11-17 18:21:36 +01:00
|
|
|
|
2004-07-16 00:15:55 +02:00
|
|
|
/*
|
|
|
|
Init fields
|
|
|
|
|
|
|
|
tables is not VIEW for sure => we can pass 0 as condition
|
|
|
|
*/
|
2005-07-01 06:05:42 +02:00
|
|
|
thd->lex->select_lex.context.resolve_in_table_list_only(&tables);
|
|
|
|
setup_tables(thd, &thd->lex->select_lex.context,
|
Implementation of WL#2486 -
"Process NATURAL and USING joins according to SQL:2003".
* Some of the main problems fixed by the patch:
- in "select *" queries the * expanded correctly according to
ANSI for arbitrary natural/using joins
- natural/using joins are correctly transformed into JOIN ... ON
for any number/nesting of the joins.
- column references are correctly resolved against natural joins
of any nesting and combined with arbitrary other joins.
* This patch also contains a fix for name resolution of items
inside the ON condition of JOIN ... ON - in this case items must
be resolved only against the JOIN operands. To support such
'local' name resolution, the patch introduces a stack of
name resolution contexts used at parse time.
NOTICE:
- This patch is not complete in the sense that
- there are 2 test cases that still do not pass -
one in join.test, one in select.test. Both are marked
with a comment "TODO: WL#2486".
- it does not include a new test specific for the task
mysql-test/include/ps_query.inc:
Adjusted according to standard NATURAL/USING join semantics.,
mysql-test/r/bdb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/derived.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/errors.result:
The column as a whole cannot be resolved, so different error message.
mysql-test/r/fulltext.result:
Adjusted according to standard JOIN ... ON semantics =>
the ON condition can refer only to the join operands.
mysql-test/r/fulltext_order_by.result:
More detailed error message.
mysql-test/r/innodb.result:
Adjusted according to standard NATURAL/USING join semantics.
This test doesn't pass completetly yet!
mysql-test/r/insert_select.result:
More detailed error message.
mysql-test/r/join.result:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/r/join_crash.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_nested.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_outer.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/multi_update.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/null_key.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/order_by.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_2myisam.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_3innodb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_4heap.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_5merge.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_6bdb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_7ndb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/select.result:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one failing test case which is commented with
WL#2486 in the test file.
mysql-test/r/subselect.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/type_ranges.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/union.result:
More detailed error message.
mysql-test/t/bdb.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/errors.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/fulltext.test:
Adjusted according to standard JOIN ... ON semantics =>
the ON condition can refer only to the join operands.
mysql-test/t/fulltext_order_by.test:
More detailed error message.
mysql-test/t/innodb.test:
Adjusted according to standard NATURAL/USING join semantics.
This test doesn't pass completetly yet!
mysql-test/t/insert_select.test:
More detailed error message.
mysql-test/t/join.test:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/t/join_crash.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_nested.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_outer.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/null_key.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/order_by.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/select.test:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/t/subselect.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/type_ranges.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/union.test:
More detailed error message.
sql/item.cc:
- extra parameter to find_field_in_tables
- find_field_in_real_table renamed to find_field_in_table
- fixed comments/typos
sql/item.h:
- added [first | last]_name_resolution_table to class
Name_resolution_context
- commented old code
- standardized formatting
sql/mysql_priv.h:
- refactored the find_field_in_XXX procedures,
- added a new procedure for natural join table references,
- renamed the find_field_in_XXX procedures to clearer names
sql/sp.cc:
- pass the top-most list of the FROM clause to setup_tables
- extra parameter to find_field_in_tables
sql/sql_acl.cc:
- renamed find_field_in_table => find_field_in_table_ref
- extra parameter to find_field_in_table_ref
- commented old code
sql/sql_base.cc:
This file contains the core of the implementation of the processing
of NATURAL/USING joins (WL#2486).
- added many comments to old code
- refactored the group of find_field_in_XXX procedures, and added a
new procedure for natural joins. There is one find_field_in_XXX procedure
per each type of table reference (stored table, merge view, or natural
join); one meta-procedure that selects the correct one depeneding on the
table reference; and one procedure that goes over a list of table
referenes.
- NATURAL/USING joins are processed through the procedures:
mark_common_columns, store_natural_using_join_columns,
store_top_level_join_columns, setup_natural_join_row_types.
The entry point to processing NATURAL/USING joins is the
procedure 'setup_natural_join_row_types'.
- Replaced the specialized Field_iterator_XXX iterators with one
generic iterator over the fields of a table reference.
- Simplified 'insert_fields' and 'setup_conds' due to encapsulation of
the processing of natural joins in a separate set of procedures.
sql/sql_class.h:
- Commented old code.
sql/sql_delete.cc:
- Pass the FROM clause to setup_tables.
sql/sql_help.cc:
- pass the end name resolution table to find_field_in_tables
- adjust the list of tables for name resolution
sql/sql_insert.cc:
- Changed the code that saves and restores the current context to
support the list of tables for name resolution -
context->first_name_resolution_table, and
table_list->next_name_resolution_table.
Needed to support an ugly trick to resolve inserted columns only in
the first table.
- Added Name_resolution_context::[first | last]_name_resolution_table.
- Commented old code
sql/sql_lex.cc:
- set select_lex.parent_lex correctly
- set correct state of the current name resolution context
sql/sql_lex.h:
- Added a stack of name resolution contexts to support local
contexts for JOIN ... ON conditions.
- Commented old code.
sql/sql_load.cc:
- Pass the FROM clause to setup_tables.
sql/sql_olap.cc:
- Pass the FROM clause to setup_tables.
sql/sql_parse.cc:
- correctly set SELECT_LEX::parent_lex
- set the first table of the current name resoltion context
- added support for NATURAL/USING joins
- commented old code
sql/sql_select.cc:
- Pass the FROM clause to setup_tables.
- Pass the end table to find_field_in_tables
- Improved comments
sql/sql_show.cc:
- Set SELECT_LEX::parent_lex.
sql/sql_update.cc:
- Pass the FROM clause to setup_tables.
sql/sql_yacc.yy:
- Added support for a stack of name resolution contexts needed to
implement name resolution for JOIN ... ON. A context is pushed
for each new JOIN ... ON, and popped afterwards.
- Added support for NATURAL/USING joins.
sql/table.cc:
- Added new class Natural_join_column to hide the heterogeneous
representation of column references for stored tables and for
views.
- Added a new list TABLE_LIST::next_name_resolution_table to
support name resolution with NATURAL/USING joins. Also added
other members to TABLE_LIST to support NATURAL/USING joins.
- Added a generic iterator over the fields of table references
of various types - class Field_iterator_table_ref
sql/table.h:
- Added new class Natural_join_column to hide the heterogeneous
representation of column references for stored tables and for
views.
- Added a new list TABLE_LIST::next_name_resolution_table to
support name resolution with NATURAL/USING joins. Also added
other members to TABLE_LIST to support NATURAL/USING joins.
- Added a generic iterator over the fields of table references
of various types - class Field_iterator_table_ref
tests/mysql_client_test.c:
Adjusted according to standard NATURAL JOIN syntax.
2005-08-12 16:57:19 +02:00
|
|
|
&thd->lex->select_lex.top_join_list,
|
2005-07-01 06:05:42 +02:00
|
|
|
&tables, 0, &leaves, FALSE);
|
2003-11-17 18:21:36 +01:00
|
|
|
for (used_field= &used_fields[0];
|
|
|
|
used_field->field_name;
|
|
|
|
used_field++)
|
|
|
|
{
|
2005-07-01 06:05:42 +02:00
|
|
|
Item_field *field= new Item_field(&thd->lex->select_lex.context,
|
|
|
|
"mysql", "proc",
|
2003-11-17 18:21:36 +01:00
|
|
|
used_field->field_name);
|
2005-07-01 06:05:42 +02:00
|
|
|
if (!field ||
|
Implementation of WL#2486 -
"Process NATURAL and USING joins according to SQL:2003".
* Some of the main problems fixed by the patch:
- in "select *" queries the * expanded correctly according to
ANSI for arbitrary natural/using joins
- natural/using joins are correctly transformed into JOIN ... ON
for any number/nesting of the joins.
- column references are correctly resolved against natural joins
of any nesting and combined with arbitrary other joins.
* This patch also contains a fix for name resolution of items
inside the ON condition of JOIN ... ON - in this case items must
be resolved only against the JOIN operands. To support such
'local' name resolution, the patch introduces a stack of
name resolution contexts used at parse time.
NOTICE:
- This patch is not complete in the sense that
- there are 2 test cases that still do not pass -
one in join.test, one in select.test. Both are marked
with a comment "TODO: WL#2486".
- it does not include a new test specific for the task
mysql-test/include/ps_query.inc:
Adjusted according to standard NATURAL/USING join semantics.,
mysql-test/r/bdb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/derived.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/errors.result:
The column as a whole cannot be resolved, so different error message.
mysql-test/r/fulltext.result:
Adjusted according to standard JOIN ... ON semantics =>
the ON condition can refer only to the join operands.
mysql-test/r/fulltext_order_by.result:
More detailed error message.
mysql-test/r/innodb.result:
Adjusted according to standard NATURAL/USING join semantics.
This test doesn't pass completetly yet!
mysql-test/r/insert_select.result:
More detailed error message.
mysql-test/r/join.result:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/r/join_crash.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_nested.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_outer.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/multi_update.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/null_key.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/order_by.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_2myisam.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_3innodb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_4heap.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_5merge.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_6bdb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_7ndb.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/select.result:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one failing test case which is commented with
WL#2486 in the test file.
mysql-test/r/subselect.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/type_ranges.result:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/union.result:
More detailed error message.
mysql-test/t/bdb.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/errors.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/fulltext.test:
Adjusted according to standard JOIN ... ON semantics =>
the ON condition can refer only to the join operands.
mysql-test/t/fulltext_order_by.test:
More detailed error message.
mysql-test/t/innodb.test:
Adjusted according to standard NATURAL/USING join semantics.
This test doesn't pass completetly yet!
mysql-test/t/insert_select.test:
More detailed error message.
mysql-test/t/join.test:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/t/join_crash.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_nested.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_outer.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/null_key.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/order_by.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/select.test:
Adjusted according to standard NATURAL/USING join semantics.
NOTICE: there is one test case that still fails, and it is
commeted out and marked with WL#2486 in the test file.
mysql-test/t/subselect.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/type_ranges.test:
Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/union.test:
More detailed error message.
sql/item.cc:
- extra parameter to find_field_in_tables
- find_field_in_real_table renamed to find_field_in_table
- fixed comments/typos
sql/item.h:
- added [first | last]_name_resolution_table to class
Name_resolution_context
- commented old code
- standardized formatting
sql/mysql_priv.h:
- refactored the find_field_in_XXX procedures,
- added a new procedure for natural join table references,
- renamed the find_field_in_XXX procedures to clearer names
sql/sp.cc:
- pass the top-most list of the FROM clause to setup_tables
- extra parameter to find_field_in_tables
sql/sql_acl.cc:
- renamed find_field_in_table => find_field_in_table_ref
- extra parameter to find_field_in_table_ref
- commented old code
sql/sql_base.cc:
This file contains the core of the implementation of the processing
of NATURAL/USING joins (WL#2486).
- added many comments to old code
- refactored the group of find_field_in_XXX procedures, and added a
new procedure for natural joins. There is one find_field_in_XXX procedure
per each type of table reference (stored table, merge view, or natural
join); one meta-procedure that selects the correct one depeneding on the
table reference; and one procedure that goes over a list of table
referenes.
- NATURAL/USING joins are processed through the procedures:
mark_common_columns, store_natural_using_join_columns,
store_top_level_join_columns, setup_natural_join_row_types.
The entry point to processing NATURAL/USING joins is the
procedure 'setup_natural_join_row_types'.
- Replaced the specialized Field_iterator_XXX iterators with one
generic iterator over the fields of a table reference.
- Simplified 'insert_fields' and 'setup_conds' due to encapsulation of
the processing of natural joins in a separate set of procedures.
sql/sql_class.h:
- Commented old code.
sql/sql_delete.cc:
- Pass the FROM clause to setup_tables.
sql/sql_help.cc:
- pass the end name resolution table to find_field_in_tables
- adjust the list of tables for name resolution
sql/sql_insert.cc:
- Changed the code that saves and restores the current context to
support the list of tables for name resolution -
context->first_name_resolution_table, and
table_list->next_name_resolution_table.
Needed to support an ugly trick to resolve inserted columns only in
the first table.
- Added Name_resolution_context::[first | last]_name_resolution_table.
- Commented old code
sql/sql_lex.cc:
- set select_lex.parent_lex correctly
- set correct state of the current name resolution context
sql/sql_lex.h:
- Added a stack of name resolution contexts to support local
contexts for JOIN ... ON conditions.
- Commented old code.
sql/sql_load.cc:
- Pass the FROM clause to setup_tables.
sql/sql_olap.cc:
- Pass the FROM clause to setup_tables.
sql/sql_parse.cc:
- correctly set SELECT_LEX::parent_lex
- set the first table of the current name resoltion context
- added support for NATURAL/USING joins
- commented old code
sql/sql_select.cc:
- Pass the FROM clause to setup_tables.
- Pass the end table to find_field_in_tables
- Improved comments
sql/sql_show.cc:
- Set SELECT_LEX::parent_lex.
sql/sql_update.cc:
- Pass the FROM clause to setup_tables.
sql/sql_yacc.yy:
- Added support for a stack of name resolution contexts needed to
implement name resolution for JOIN ... ON. A context is pushed
for each new JOIN ... ON, and popped afterwards.
- Added support for NATURAL/USING joins.
sql/table.cc:
- Added new class Natural_join_column to hide the heterogeneous
representation of column references for stored tables and for
views.
- Added a new list TABLE_LIST::next_name_resolution_table to
support name resolution with NATURAL/USING joins. Also added
other members to TABLE_LIST to support NATURAL/USING joins.
- Added a generic iterator over the fields of table references
of various types - class Field_iterator_table_ref
sql/table.h:
- Added new class Natural_join_column to hide the heterogeneous
representation of column references for stored tables and for
views.
- Added a new list TABLE_LIST::next_name_resolution_table to
support name resolution with NATURAL/USING joins. Also added
other members to TABLE_LIST to support NATURAL/USING joins.
- Added a generic iterator over the fields of table references
of various types - class Field_iterator_table_ref
tests/mysql_client_test.c:
Adjusted according to standard NATURAL JOIN syntax.
2005-08-12 16:57:19 +02:00
|
|
|
!(used_field->field= find_field_in_tables(thd, field, &tables, NULL,
|
2005-07-02 23:51:02 +02:00
|
|
|
0, REPORT_ALL_ERRORS, 1,
|
|
|
|
TRUE)))
|
2003-11-20 15:07:22 +01:00
|
|
|
{
|
|
|
|
res= SP_INTERNAL_ERROR;
|
2003-11-17 18:21:36 +01:00
|
|
|
goto err_case1;
|
2003-11-20 15:07:22 +01:00
|
|
|
}
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2004-07-12 06:43:38 +02:00
|
|
|
table->file->ha_index_init(0);
|
2003-11-20 15:07:22 +01:00
|
|
|
if ((res= table->file->index_first(table->record[0])))
|
|
|
|
{
|
2003-12-21 11:48:03 +01:00
|
|
|
res= (res == HA_ERR_END_OF_FILE) ? 0 : SP_INTERNAL_ERROR;
|
2003-11-20 15:07:22 +01:00
|
|
|
goto err_case1;
|
|
|
|
}
|
|
|
|
if ((res= print_field_values(thd, table, used_fields, type, wild)))
|
2003-11-17 18:21:36 +01:00
|
|
|
goto err_case1;
|
|
|
|
while (!table->file->index_next(table->record[0]))
|
|
|
|
{
|
2003-11-20 15:07:22 +01:00
|
|
|
if ((res= print_field_values(thd, table, used_fields, type, wild)))
|
2003-11-17 18:21:36 +01:00
|
|
|
goto err_case1;
|
|
|
|
}
|
2003-11-20 15:07:22 +01:00
|
|
|
res= SP_OK;
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
2003-11-20 15:07:22 +01:00
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
err_case1:
|
2003-11-17 18:21:36 +01:00
|
|
|
send_eof(thd);
|
2003-12-21 11:48:03 +01:00
|
|
|
err_case:
|
2004-07-15 03:19:07 +02:00
|
|
|
table->file->ha_index_end();
|
2003-11-17 18:21:36 +01:00
|
|
|
close_thread_tables(thd);
|
2003-12-21 11:48:03 +01:00
|
|
|
done:
|
2003-11-20 15:07:22 +01:00
|
|
|
DBUG_RETURN(res);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2004-03-22 14:44:41 +01:00
|
|
|
/* Drop all routines in database 'db' */
|
|
|
|
int
|
|
|
|
sp_drop_db_routines(THD *thd, char *db)
|
|
|
|
{
|
|
|
|
TABLE *table;
|
|
|
|
int ret;
|
2006-04-18 16:01:01 +02:00
|
|
|
uint key_len;
|
2004-03-22 14:44:41 +01:00
|
|
|
DBUG_ENTER("sp_drop_db_routines");
|
|
|
|
DBUG_PRINT("enter", ("db: %s", db));
|
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
ret= SP_OPEN_TABLE_FAILED;
|
|
|
|
if (!(table= open_proc_table_for_update(thd)))
|
|
|
|
goto err;
|
2004-03-22 14:44:41 +01:00
|
|
|
|
2006-04-18 16:01:01 +02:00
|
|
|
table->field[MYSQL_PROC_FIELD_DB]->store(db, strlen(db), system_charset_info);
|
|
|
|
key_len= table->key_info->key_part[0].store_length;
|
|
|
|
|
2004-03-22 14:44:41 +01:00
|
|
|
ret= SP_OK;
|
2004-07-12 06:43:38 +02:00
|
|
|
table->file->ha_index_init(0);
|
2004-03-22 14:44:41 +01:00
|
|
|
if (! table->file->index_read(table->record[0],
|
2006-04-21 14:30:44 +02:00
|
|
|
(byte *)table->field[MYSQL_PROC_FIELD_DB]->ptr,
|
2006-04-18 16:01:01 +02:00
|
|
|
key_len, HA_READ_KEY_EXACT))
|
2004-03-22 14:44:41 +01:00
|
|
|
{
|
|
|
|
int nxtres;
|
|
|
|
bool deleted= FALSE;
|
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
do
|
|
|
|
{
|
2004-03-22 14:44:41 +01:00
|
|
|
if (! table->file->delete_row(table->record[0]))
|
|
|
|
deleted= TRUE; /* We deleted something */
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ret= SP_DELETE_ROW_FAILED;
|
2004-03-23 12:04:40 +01:00
|
|
|
nxtres= 0;
|
2004-03-22 14:44:41 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
} while (! (nxtres= table->file->index_next_same(table->record[0],
|
2006-04-21 14:30:44 +02:00
|
|
|
(byte *)table->field[MYSQL_PROC_FIELD_DB]->ptr,
|
2006-04-18 16:01:01 +02:00
|
|
|
key_len)));
|
2004-03-22 14:44:41 +01:00
|
|
|
if (nxtres != HA_ERR_END_OF_FILE)
|
|
|
|
ret= SP_KEY_NOT_FOUND;
|
|
|
|
if (deleted)
|
|
|
|
sp_cache_invalidate();
|
|
|
|
}
|
2004-07-15 03:19:07 +02:00
|
|
|
table->file->ha_index_end();
|
2004-03-22 14:44:41 +01:00
|
|
|
|
|
|
|
close_thread_tables(thd);
|
|
|
|
|
2005-07-13 11:48:13 +02:00
|
|
|
err:
|
2004-03-22 14:44:41 +01:00
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
/*****************************************************************************
|
|
|
|
PROCEDURE
|
|
|
|
******************************************************************************/
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
/*
|
2005-11-23 00:11:19 +01:00
|
|
|
Obtain object representing stored procedure/function by its name from
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
stored procedures cache and looking into mysql.proc if needed.
|
|
|
|
|
|
|
|
SYNOPSIS
|
2005-11-23 00:11:19 +01:00
|
|
|
sp_find_routine()
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
thd - thread context
|
2005-11-23 00:11:19 +01:00
|
|
|
type - type of object (TYPE_ENUM_FUNCTION or TYPE_ENUM_PROCEDURE)
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
name - name of procedure
|
2005-11-23 00:11:19 +01:00
|
|
|
cp - hash to look routine in
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
cache_only - if true perform cache-only lookup
|
|
|
|
(Don't look in mysql.proc).
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
Non-0 pointer to sp_head object for the procedure, or
|
|
|
|
0 - in case of error.
|
|
|
|
*/
|
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
sp_head *
|
2005-11-23 00:11:19 +01:00
|
|
|
sp_find_routine(THD *thd, int type, sp_name *name, sp_cache **cp,
|
|
|
|
bool cache_only)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
|
|
|
sp_head *sp;
|
2005-11-23 00:11:19 +01:00
|
|
|
ulong depth= (type == TYPE_ENUM_PROCEDURE ?
|
|
|
|
thd->variables.max_sp_recursion_depth :
|
|
|
|
0);
|
|
|
|
DBUG_ENTER("sp_find_routine");
|
|
|
|
DBUG_PRINT("enter", ("name: %.*s.%.*s, type: %d, cache only %d",
|
|
|
|
name->m_db.length, name->m_db.str,
|
|
|
|
name->m_name.length, name->m_name.str,
|
|
|
|
type, cache_only));
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
if ((sp= sp_cache_lookup(cp, name)))
|
2003-07-01 18:14:24 +02:00
|
|
|
{
|
2005-11-23 00:11:19 +01:00
|
|
|
ulong level;
|
2006-01-05 23:47:49 +01:00
|
|
|
sp_head *new_sp;
|
|
|
|
const char *returns= "";
|
2006-01-11 00:07:40 +01:00
|
|
|
char definer[USER_HOST_BUFF_SIZE];
|
2006-07-27 15:57:43 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
String buffer for RETURNS data type must have system charset;
|
|
|
|
64 -- size of "returns" column of mysql.proc.
|
|
|
|
*/
|
2006-01-05 23:47:49 +01:00
|
|
|
String retstr(64);
|
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
DBUG_PRINT("info", ("found: 0x%lx", (ulong)sp));
|
|
|
|
if (sp->m_first_free_instance)
|
|
|
|
{
|
|
|
|
DBUG_PRINT("info", ("first free: 0x%lx, level: %lu, flags %x",
|
|
|
|
(ulong)sp->m_first_free_instance,
|
|
|
|
sp->m_first_free_instance->m_recursion_level,
|
|
|
|
sp->m_first_free_instance->m_flags));
|
|
|
|
DBUG_ASSERT(!(sp->m_first_free_instance->m_flags & sp_head::IS_INVOKED));
|
|
|
|
if (sp->m_first_free_instance->m_recursion_level > depth)
|
|
|
|
{
|
2006-01-05 23:47:49 +01:00
|
|
|
sp->recursion_level_error(thd);
|
2005-11-23 00:11:19 +01:00
|
|
|
DBUG_RETURN(0);
|
|
|
|
}
|
|
|
|
DBUG_RETURN(sp->m_first_free_instance);
|
|
|
|
}
|
2006-08-24 19:36:26 +02:00
|
|
|
/*
|
|
|
|
Actually depth could be +1 than the actual value in case a SP calls
|
|
|
|
SHOW CREATE PROCEDURE. Hence, the linked list could hold up to one more
|
|
|
|
instance.
|
|
|
|
*/
|
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
level= sp->m_last_cached_sp->m_recursion_level + 1;
|
|
|
|
if (level > depth)
|
|
|
|
{
|
2006-01-05 23:47:49 +01:00
|
|
|
sp->recursion_level_error(thd);
|
2005-11-23 00:11:19 +01:00
|
|
|
DBUG_RETURN(0);
|
|
|
|
}
|
2006-01-05 23:47:49 +01:00
|
|
|
|
|
|
|
strxmov(definer, sp->m_definer_user.str, "@",
|
|
|
|
sp->m_definer_host.str, NullS);
|
|
|
|
if (type == TYPE_ENUM_FUNCTION)
|
2005-11-23 00:11:19 +01:00
|
|
|
{
|
2006-01-05 23:47:49 +01:00
|
|
|
sp_returns_type(thd, retstr, sp);
|
|
|
|
returns= retstr.ptr();
|
|
|
|
}
|
|
|
|
if (db_load_routine(thd, type, name, &new_sp,
|
|
|
|
sp->m_sql_mode, sp->m_params.str, returns,
|
|
|
|
sp->m_body.str, *sp->m_chistics, definer,
|
|
|
|
sp->m_created, sp->m_modified) == SP_OK)
|
|
|
|
{
|
|
|
|
sp->m_last_cached_sp->m_next_cached_sp= new_sp;
|
|
|
|
new_sp->m_recursion_level= level;
|
|
|
|
new_sp->m_first_instance= sp;
|
|
|
|
sp->m_last_cached_sp= sp->m_first_free_instance= new_sp;
|
|
|
|
DBUG_PRINT("info", ("added level: 0x%lx, level: %lu, flags %x",
|
2005-11-23 00:11:19 +01:00
|
|
|
(ulong)new_sp, new_sp->m_recursion_level,
|
|
|
|
new_sp->m_flags));
|
2006-01-05 23:47:49 +01:00
|
|
|
DBUG_RETURN(new_sp);
|
2005-11-23 00:11:19 +01:00
|
|
|
}
|
2006-01-05 23:47:49 +01:00
|
|
|
DBUG_RETURN(0);
|
2005-11-23 00:11:19 +01:00
|
|
|
}
|
|
|
|
if (!cache_only)
|
|
|
|
{
|
|
|
|
if (db_find_routine(thd, type, name, &sp) == SP_OK)
|
|
|
|
{
|
|
|
|
sp_cache_insert(cp, sp);
|
|
|
|
DBUG_PRINT("info", ("added new: 0x%lx, level: %lu, flags %x",
|
|
|
|
(ulong)sp, sp->m_recursion_level,
|
|
|
|
sp->m_flags));
|
|
|
|
}
|
2003-07-01 18:14:24 +02:00
|
|
|
}
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_RETURN(sp);
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2006-01-26 13:29:46 +01:00
|
|
|
/*
|
|
|
|
This is used by sql_acl.cc:mysql_routine_grant() and is used to find
|
|
|
|
the routines in 'routines'.
|
|
|
|
*/
|
2005-11-23 00:11:19 +01:00
|
|
|
|
2004-12-23 11:46:24 +01:00
|
|
|
int
|
2006-01-26 13:29:46 +01:00
|
|
|
sp_exist_routines(THD *thd, TABLE_LIST *routines, bool any, bool no_error)
|
2004-12-23 11:46:24 +01:00
|
|
|
{
|
2006-01-26 13:29:46 +01:00
|
|
|
TABLE_LIST *routine;
|
2004-12-23 11:46:24 +01:00
|
|
|
bool result= 0;
|
2006-02-22 11:44:04 +01:00
|
|
|
bool sp_object_found;
|
2004-12-23 11:46:24 +01:00
|
|
|
DBUG_ENTER("sp_exists_routine");
|
2006-01-26 13:29:46 +01:00
|
|
|
for (routine= routines; routine; routine= routine->next_global)
|
2004-12-23 11:46:24 +01:00
|
|
|
{
|
|
|
|
sp_name *name;
|
|
|
|
LEX_STRING lex_db;
|
|
|
|
LEX_STRING lex_name;
|
2006-01-26 13:29:46 +01:00
|
|
|
lex_db.length= strlen(routine->db);
|
|
|
|
lex_name.length= strlen(routine->table_name);
|
|
|
|
lex_db.str= thd->strmake(routine->db, lex_db.length);
|
|
|
|
lex_name.str= thd->strmake(routine->table_name, lex_name.length);
|
2007-03-27 18:31:44 +02:00
|
|
|
name= new sp_name(lex_db, lex_name, true);
|
2004-12-23 11:46:24 +01:00
|
|
|
name->init_qname(thd);
|
2006-02-22 11:44:04 +01:00
|
|
|
sp_object_found= sp_find_routine(thd, TYPE_ENUM_PROCEDURE, name,
|
|
|
|
&thd->sp_proc_cache, FALSE) != NULL ||
|
|
|
|
sp_find_routine(thd, TYPE_ENUM_FUNCTION, name,
|
|
|
|
&thd->sp_func_cache, FALSE) != NULL;
|
|
|
|
mysql_reset_errors(thd, TRUE);
|
|
|
|
if (sp_object_found)
|
2004-12-23 11:46:24 +01:00
|
|
|
{
|
|
|
|
if (any)
|
|
|
|
DBUG_RETURN(1);
|
|
|
|
result= 1;
|
|
|
|
}
|
|
|
|
else if (!any)
|
|
|
|
{
|
|
|
|
if (!no_error)
|
|
|
|
{
|
|
|
|
my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION or PROCEDURE",
|
2006-01-26 13:29:46 +01:00
|
|
|
routine->table_name);
|
2004-12-23 11:46:24 +01:00
|
|
|
DBUG_RETURN(-1);
|
|
|
|
}
|
|
|
|
DBUG_RETURN(0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
DBUG_RETURN(result);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-01-26 13:29:46 +01:00
|
|
|
/*
|
|
|
|
Check if a routine exists in the mysql.proc table, without actually
|
|
|
|
parsing the definition. (Used for dropping)
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_routine_exists_in_table()
|
|
|
|
thd - thread context
|
|
|
|
name - name of procedure
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
0 - Success
|
|
|
|
non-0 - Error; SP_OPEN_TABLE_FAILED or SP_KEY_NOT_FOUND
|
|
|
|
*/
|
|
|
|
|
|
|
|
int
|
|
|
|
sp_routine_exists_in_table(THD *thd, int type, sp_name *name)
|
|
|
|
{
|
|
|
|
TABLE *table;
|
|
|
|
int ret;
|
|
|
|
Open_tables_state open_tables_state_backup;
|
|
|
|
|
|
|
|
if (!(table= open_proc_table_for_read(thd, &open_tables_state_backup)))
|
|
|
|
ret= SP_OPEN_TABLE_FAILED;
|
|
|
|
else
|
|
|
|
{
|
2006-02-02 15:37:29 +01:00
|
|
|
if ((ret= db_find_routine_aux(thd, type, name, table)) != SP_OK)
|
2006-01-26 13:29:46 +01:00
|
|
|
ret= SP_KEY_NOT_FOUND;
|
|
|
|
close_proc_table(thd, &open_tables_state_backup);
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
int
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
sp_create_procedure(THD *thd, sp_head *sp)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_ENTER("sp_create_procedure");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", sp->m_name.length, sp->m_name.str));
|
2004-01-14 18:18:29 +01:00
|
|
|
|
|
|
|
ret= db_create_routine(thd, TYPE_ENUM_PROCEDURE, sp);
|
|
|
|
DBUG_RETURN(ret);
|
2002-12-12 13:14:23 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2002-12-12 13:14:23 +01:00
|
|
|
int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
sp_drop_procedure(THD *thd, sp_name *name)
|
2002-12-12 13:14:23 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
2003-02-12 16:17:03 +01:00
|
|
|
DBUG_ENTER("sp_drop_procedure");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
2002-12-12 13:14:23 +01:00
|
|
|
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
ret= db_drop_routine(thd, TYPE_ENUM_PROCEDURE, name);
|
2005-08-09 01:23:34 +02:00
|
|
|
if (!ret)
|
2004-08-06 18:11:14 +02:00
|
|
|
sp_cache_invalidate();
|
2004-01-14 18:18:29 +01:00
|
|
|
DBUG_RETURN(ret);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
}
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
Fixed BUG#6027: Stored procedures can be renamed.
Removed the support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
mysql-test/r/sp-error.result:
Removed test for renaming procedures with alter.
mysql-test/r/sp.result:
Removed test for renaming procedures with alter.
mysql-test/t/sp-error.test:
Removed test for renaming procedures with alter.
mysql-test/t/sp.test:
Removed test for renaming procedures with alter.
sql/sp.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sp.h:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_parse.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_yacc.yy:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
2004-10-22 19:05:17 +02:00
|
|
|
sp_update_procedure(THD *thd, sp_name *name, st_sp_chistics *chistics)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
2003-11-17 18:21:36 +01:00
|
|
|
DBUG_ENTER("sp_update_procedure");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
2003-11-17 18:21:36 +01:00
|
|
|
|
Fixed BUG#6027: Stored procedures can be renamed.
Removed the support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
mysql-test/r/sp-error.result:
Removed test for renaming procedures with alter.
mysql-test/r/sp.result:
Removed test for renaming procedures with alter.
mysql-test/t/sp-error.test:
Removed test for renaming procedures with alter.
mysql-test/t/sp.test:
Removed test for renaming procedures with alter.
sql/sp.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sp.h:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_parse.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_yacc.yy:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
2004-10-22 19:05:17 +02:00
|
|
|
ret= db_update_routine(thd, TYPE_ENUM_PROCEDURE, name, chistics);
|
2005-08-09 01:23:34 +02:00
|
|
|
if (!ret)
|
2004-08-06 18:11:14 +02:00
|
|
|
sp_cache_invalidate();
|
2004-01-14 18:18:29 +01:00
|
|
|
DBUG_RETURN(ret);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
sp_show_create_procedure(THD *thd, sp_name *name)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2006-08-24 19:36:26 +02:00
|
|
|
int ret= SP_KEY_NOT_FOUND;
|
2003-12-21 11:48:03 +01:00
|
|
|
sp_head *sp;
|
2003-11-17 18:21:36 +01:00
|
|
|
DBUG_ENTER("sp_show_create_procedure");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
2003-11-17 18:21:36 +01:00
|
|
|
|
2006-08-24 19:36:26 +02:00
|
|
|
/*
|
|
|
|
Increase the recursion limit for this statement. SHOW CREATE PROCEDURE
|
|
|
|
does not do actual recursion.
|
|
|
|
*/
|
|
|
|
thd->variables.max_sp_recursion_depth++;
|
2005-11-23 00:11:19 +01:00
|
|
|
if ((sp= sp_find_routine(thd, TYPE_ENUM_PROCEDURE, name,
|
|
|
|
&thd->sp_proc_cache, FALSE)))
|
2006-08-24 19:36:26 +02:00
|
|
|
ret= sp->show_create_procedure(thd);
|
2003-11-17 18:21:36 +01:00
|
|
|
|
2006-08-24 19:36:26 +02:00
|
|
|
thd->variables.max_sp_recursion_depth--;
|
|
|
|
DBUG_RETURN(ret);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
2003-11-20 15:07:22 +01:00
|
|
|
sp_show_status_procedure(THD *thd, const char *wild)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
2003-11-20 15:07:22 +01:00
|
|
|
DBUG_ENTER("sp_show_status_procedure");
|
2004-01-14 18:18:29 +01:00
|
|
|
|
|
|
|
ret= db_show_routine_status(thd, TYPE_ENUM_PROCEDURE, wild);
|
|
|
|
DBUG_RETURN(ret);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
2002-12-12 13:14:23 +01:00
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
FUNCTION
|
|
|
|
******************************************************************************/
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
|
|
|
int
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
sp_create_function(THD *thd, sp_head *sp)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_ENTER("sp_create_function");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", sp->m_name.length, sp->m_name.str));
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
2004-01-14 18:18:29 +01:00
|
|
|
ret= db_create_routine(thd, TYPE_ENUM_FUNCTION, sp);
|
|
|
|
DBUG_RETURN(ret);
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
sp_drop_function(THD *thd, sp_name *name)
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
DBUG_ENTER("sp_drop_function");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
Most of the groundwork for sprint task 729 (implement FUNCTIONs).
Expanded the mysql.proc table, reworked the find/create/drop functions
completely, added new functions for FUNCTIONs (lotta functions here :),
got rid of some unnecessary use of Item_strings while at it. Extended
the parser correspondingly, and fiddled around a bit to make SP FUNCTIONs
coexist with UDFs.
Can now CREATE and DROP FUNCTIONs. Invoking yet to come...
Docs/sp-implemented.txt:
Updated with info about CASCADE/RESTICT and METHOD, and some answers to questions.
include/mysqld_error.h:
New error message for misuse of RETURN.
mysql-test/install_test_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
mysql-test/r/sp.result:
New test for creating and dropping FUNCTIONS.
mysql-test/t/sp.test:
New test for creating and dropping FUNCTIONS.
scripts/mysql_install_db.sh:
Added enum field to mysql.proc to distinguish between FUNCTION and PROCEDURE.
sql/lex.h:
De-UDFed some symbol names, as they are now used for SPs as well.
Added RETURN_SYM.
sql/share/czech/errmsg.txt:
New error message for misuse of RETURN.
sql/share/danish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/dutch/errmsg.txt:
New error message for misuse of RETURN.
sql/share/english/errmsg.txt:
New error message for misuse of RETURN.
sql/share/estonian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/french/errmsg.txt:
New error message for misuse of RETURN.
sql/share/german/errmsg.txt:
New error message for misuse of RETURN.
sql/share/greek/errmsg.txt:
New error message for misuse of RETURN.
sql/share/hungarian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/italian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/japanese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/korean/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian-ny/errmsg.txt:
New error message for misuse of RETURN.
sql/share/norwegian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/polish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/portuguese/errmsg.txt:
New error message for misuse of RETURN.
sql/share/romanian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/russian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/serbian/errmsg.txt:
New error message for misuse of RETURN.
sql/share/slovak/errmsg.txt:
New error message for misuse of RETURN.
sql/share/spanish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/swedish/errmsg.txt:
New error message for misuse of RETURN.
sql/share/ukrainian/errmsg.txt:
New error message for misuse of RETURN.
sql/sp.cc:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp.h:
Major rehack to accomodate FUNCTIONs, and to make it easier to add
future in-memory cache of prepared SPs.
sql/sp_head.cc:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sp_head.h:
Now creates FUNCTIONs too. (And got rid of some unnecessary Item_string use.)
sql/sql_lex.h:
New stored FUNCTION commands.
sql/sql_parse.cc:
Added FUNCTION support ("drop" merged with the old UDF code), and made some
additional changes for better error handling (following the sp.cc rehacking).
sql/sql_yacc.yy:
Some former UDF specific symbols renamed.
Added CREATE FUNCTION parsing.
DROP FUNCTION had to be partly merged with the old UDF code, because of the similar
syntax.
RETURN statement added, but still a no-op.
2003-02-21 17:37:05 +01:00
|
|
|
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
ret= db_drop_routine(thd, TYPE_ENUM_FUNCTION, name);
|
2005-08-09 01:23:34 +02:00
|
|
|
if (!ret)
|
2004-08-06 18:11:14 +02:00
|
|
|
sp_cache_invalidate();
|
2004-01-14 18:18:29 +01:00
|
|
|
DBUG_RETURN(ret);
|
2002-12-12 13:14:23 +01:00
|
|
|
}
|
2003-02-26 19:22:29 +01:00
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
Fixed BUG#6027: Stored procedures can be renamed.
Removed the support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
mysql-test/r/sp-error.result:
Removed test for renaming procedures with alter.
mysql-test/r/sp.result:
Removed test for renaming procedures with alter.
mysql-test/t/sp-error.test:
Removed test for renaming procedures with alter.
mysql-test/t/sp.test:
Removed test for renaming procedures with alter.
sql/sp.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sp.h:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_parse.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_yacc.yy:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
2004-10-22 19:05:17 +02:00
|
|
|
sp_update_function(THD *thd, sp_name *name, st_sp_chistics *chistics)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
2003-11-17 18:21:36 +01:00
|
|
|
DBUG_ENTER("sp_update_procedure");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
2003-11-17 18:21:36 +01:00
|
|
|
|
Fixed BUG#6027: Stored procedures can be renamed.
Removed the support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
mysql-test/r/sp-error.result:
Removed test for renaming procedures with alter.
mysql-test/r/sp.result:
Removed test for renaming procedures with alter.
mysql-test/t/sp-error.test:
Removed test for renaming procedures with alter.
mysql-test/t/sp.test:
Removed test for renaming procedures with alter.
sql/sp.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sp.h:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_parse.cc:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
sql/sql_yacc.yy:
Removed support for renaming SPs. It's non-standard, conflicted with a standard
syntax, and was a bit broken anyway.
2004-10-22 19:05:17 +02:00
|
|
|
ret= db_update_routine(thd, TYPE_ENUM_FUNCTION, name, chistics);
|
2005-08-09 01:23:34 +02:00
|
|
|
if (!ret)
|
2004-08-06 18:11:14 +02:00
|
|
|
sp_cache_invalidate();
|
2004-01-14 18:18:29 +01:00
|
|
|
DBUG_RETURN(ret);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
WL#1366: Use the schema (db) associated with an SP.
Phase 1: Introduced sp_name class, for qualified name support.
sql/item_func.cc:
Introduced sp_name class; moved some methods from item_func.h.
sql/item_func.h:
Introduced sp_name class; moved some methods to item_func.cc.
sql/sp.cc:
Introduced sp_name class, for qualified name support.
sql/sp.h:
Introduced sp_name class, for qualified name support.
sql/sp_cache.cc:
Introduced sp_name class, for qualified name support.
sql/sp_cache.h:
Introduced sp_name class, for qualified name support.
sql/sp_head.cc:
Introduced sp_name class, for qualified name support.
sql/sp_head.h:
Introduced sp_name class, for qualified name support.
sql/sql_lex.h:
Introduced sp_name class, for qualified name support.
sql/sql_parse.cc:
Introduced sp_name class, for qualified name support.
sql/sql_yacc.yy:
Introduced sp_name class, for qualified name support.
2004-02-17 17:36:53 +01:00
|
|
|
sp_show_create_function(THD *thd, sp_name *name)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2003-12-21 11:48:03 +01:00
|
|
|
sp_head *sp;
|
2003-11-17 18:21:36 +01:00
|
|
|
DBUG_ENTER("sp_show_create_function");
|
2005-10-07 02:37:24 +02:00
|
|
|
DBUG_PRINT("enter", ("name: %.*s", name->m_name.length, name->m_name.str));
|
2003-11-17 18:21:36 +01:00
|
|
|
|
2005-11-23 00:11:19 +01:00
|
|
|
if ((sp= sp_find_routine(thd, TYPE_ENUM_FUNCTION, name,
|
|
|
|
&thd->sp_func_cache, FALSE)))
|
2004-01-14 18:18:29 +01:00
|
|
|
{
|
|
|
|
int ret= sp->show_create_function(thd);
|
|
|
|
|
|
|
|
DBUG_RETURN(ret);
|
|
|
|
}
|
2003-11-20 15:07:22 +01:00
|
|
|
DBUG_RETURN(SP_KEY_NOT_FOUND);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2003-11-17 18:21:36 +01:00
|
|
|
int
|
2003-11-20 15:07:22 +01:00
|
|
|
sp_show_status_function(THD *thd, const char *wild)
|
2003-11-17 18:21:36 +01:00
|
|
|
{
|
2004-01-14 18:18:29 +01:00
|
|
|
int ret;
|
2003-11-20 15:07:22 +01:00
|
|
|
DBUG_ENTER("sp_show_status_function");
|
2004-01-14 18:18:29 +01:00
|
|
|
ret= db_show_routine_status(thd, TYPE_ENUM_FUNCTION, wild);
|
|
|
|
DBUG_RETURN(ret);
|
2003-11-17 18:21:36 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
/*
|
|
|
|
Structure that represents element in the set of stored routines
|
|
|
|
used by statement or routine.
|
|
|
|
*/
|
|
|
|
struct Sroutine_hash_entry;
|
|
|
|
|
|
|
|
struct Sroutine_hash_entry
|
2003-07-07 14:55:10 +02:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
/* Set key consisting of one-byte routine type and quoted routine name. */
|
|
|
|
LEX_STRING key;
|
|
|
|
/*
|
|
|
|
Next element in list linking all routines in set. See also comments
|
|
|
|
for LEX::sroutine/sroutine_list and sp_head::m_sroutines.
|
|
|
|
*/
|
|
|
|
Sroutine_hash_entry *next;
|
2005-12-07 10:27:17 +01:00
|
|
|
/*
|
|
|
|
Uppermost view which directly or indirectly uses this routine.
|
|
|
|
0 if routine is not used in view. Note that it also can be 0 if
|
|
|
|
statement uses routine both via view and directly.
|
|
|
|
*/
|
|
|
|
TABLE_LIST *belong_to_view;
|
2005-07-09 19:51:59 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
extern "C" byte* sp_sroutine_key(const byte *ptr, uint *plen, my_bool first)
|
|
|
|
{
|
|
|
|
Sroutine_hash_entry *rn= (Sroutine_hash_entry *)ptr;
|
|
|
|
*plen= rn->key.length;
|
|
|
|
return (byte *)rn->key.str;
|
2003-07-07 14:55:10 +02:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2005-07-30 10:19:57 +02:00
|
|
|
/*
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
Check if
|
|
|
|
- current statement (the one in thd->lex) needs table prelocking
|
|
|
|
- first routine in thd->lex->sroutines_list needs to execute its body in
|
|
|
|
prelocked mode.
|
2005-07-30 10:19:57 +02:00
|
|
|
|
|
|
|
SYNOPSIS
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
sp_get_prelocking_info()
|
|
|
|
thd Current thread, thd->lex is the statement to be
|
|
|
|
checked.
|
|
|
|
need_prelocking OUT TRUE - prelocked mode should be activated
|
|
|
|
before executing the statement
|
|
|
|
FALSE - Don't activate prelocking
|
|
|
|
first_no_prelocking OUT TRUE - Tables used by first routine in
|
|
|
|
thd->lex->sroutines_list should be
|
|
|
|
prelocked.
|
|
|
|
FALSE - Otherwise.
|
2005-07-30 10:19:57 +02:00
|
|
|
NOTES
|
|
|
|
This function assumes that for any "CALL proc(...)" statement routines_list
|
|
|
|
will have 'proc' as first element (it may have several, consider e.g.
|
|
|
|
"proc(sp_func(...)))". This property is currently guaranted by the parser.
|
|
|
|
*/
|
|
|
|
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
void sp_get_prelocking_info(THD *thd, bool *need_prelocking,
|
|
|
|
bool *first_no_prelocking)
|
2005-07-30 10:19:57 +02:00
|
|
|
{
|
|
|
|
Sroutine_hash_entry *routine;
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
routine= (Sroutine_hash_entry*)thd->lex->sroutines_list.first;
|
2005-07-30 10:19:57 +02:00
|
|
|
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
DBUG_ASSERT(routine);
|
|
|
|
bool first_is_procedure= (routine->key.str[0] == TYPE_ENUM_PROCEDURE);
|
2005-07-30 10:19:57 +02:00
|
|
|
|
Prelocking-free SPs, post-review fixes:
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
2005-08-03 05:37:32 +02:00
|
|
|
*first_no_prelocking= first_is_procedure;
|
|
|
|
*need_prelocking= !first_is_procedure || test(routine->next);
|
2005-07-30 10:19:57 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
/*
|
|
|
|
Auxilary function that adds new element to the set of stored routines
|
|
|
|
used by statement.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
add_used_routine()
|
2005-12-07 10:27:17 +01:00
|
|
|
lex LEX representing statement
|
|
|
|
arena Arena in which memory for new element will be allocated
|
|
|
|
key Key for the hash representing set
|
|
|
|
belong_to_view Uppermost view which uses this routine
|
|
|
|
(0 if routine is not used by view)
|
2005-07-09 19:51:59 +02:00
|
|
|
|
|
|
|
NOTES
|
|
|
|
Will also add element to end of 'LEX::sroutines_list' list.
|
|
|
|
|
|
|
|
In case when statement uses stored routines but does not need
|
|
|
|
prelocking (i.e. it does not use any tables) we will access the
|
|
|
|
elements of LEX::sroutines set on prepared statement re-execution.
|
|
|
|
Because of this we have to allocate memory for both hash element
|
|
|
|
and copy of its key in persistent arena.
|
|
|
|
|
|
|
|
TODO
|
|
|
|
When we will got rid of these accesses on re-executions we will be
|
|
|
|
able to allocate memory for hash elements in non-persitent arena
|
|
|
|
and directly use key values from sp_head::m_sroutines sets instead
|
|
|
|
of making their copies.
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
TRUE - new element was added.
|
|
|
|
FALSE - element was not added (because it is already present in the set).
|
|
|
|
*/
|
|
|
|
|
2005-07-09 21:11:17 +02:00
|
|
|
static bool add_used_routine(LEX *lex, Query_arena *arena,
|
2005-12-07 10:27:17 +01:00
|
|
|
const LEX_STRING *key,
|
|
|
|
TABLE_LIST *belong_to_view)
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2006-11-01 13:41:48 +01:00
|
|
|
hash_init_opt(&lex->sroutines, system_charset_info,
|
|
|
|
Query_tables_list::START_SROUTINES_HASH_SIZE,
|
|
|
|
0, 0, sp_sroutine_key, 0, 0);
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
if (!hash_search(&lex->sroutines, (byte *)key->str, key->length))
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
Sroutine_hash_entry *rn=
|
|
|
|
(Sroutine_hash_entry *)arena->alloc(sizeof(Sroutine_hash_entry) +
|
|
|
|
key->length);
|
|
|
|
if (!rn) // OOM. Error will be reported using fatal_error().
|
|
|
|
return FALSE;
|
|
|
|
rn->key.length= key->length;
|
|
|
|
rn->key.str= (char *)rn + sizeof(Sroutine_hash_entry);
|
|
|
|
memcpy(rn->key.str, key->str, key->length);
|
|
|
|
my_hash_insert(&lex->sroutines, (byte *)rn);
|
|
|
|
lex->sroutines_list.link_in_list((byte *)rn, (byte **)&rn->next);
|
2005-12-07 10:27:17 +01:00
|
|
|
rn->belong_to_view= belong_to_view;
|
2005-07-09 19:51:59 +02:00
|
|
|
return TRUE;
|
2003-03-02 19:17:41 +01:00
|
|
|
}
|
2005-07-09 19:51:59 +02:00
|
|
|
return FALSE;
|
2003-03-02 19:17:41 +01:00
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
/*
|
2005-09-15 01:56:09 +02:00
|
|
|
Add routine which is explicitly used by statement to the set of stored
|
|
|
|
routines used by this statement.
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
|
|
|
|
SYNOPSIS
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_add_used_routine()
|
|
|
|
lex - LEX representing statement
|
|
|
|
arena - arena in which memory for new element of the set
|
|
|
|
will be allocated
|
|
|
|
rt - routine name
|
|
|
|
rt_type - routine type (one of TYPE_ENUM_PROCEDURE/...)
|
|
|
|
|
|
|
|
NOTES
|
2005-09-15 01:56:09 +02:00
|
|
|
Will also add element to end of 'LEX::sroutines_list' list (and will
|
|
|
|
take into account that this is explicitly used routine).
|
2005-07-09 19:51:59 +02:00
|
|
|
|
|
|
|
To be friendly towards prepared statements one should pass
|
|
|
|
persistent arena as second argument.
|
|
|
|
*/
|
|
|
|
|
2005-07-09 21:11:17 +02:00
|
|
|
void sp_add_used_routine(LEX *lex, Query_arena *arena,
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_name *rt, char rt_type)
|
|
|
|
{
|
|
|
|
rt->set_routine_type(rt_type);
|
2005-12-07 10:27:17 +01:00
|
|
|
(void)add_used_routine(lex, arena, &rt->m_sroutines_key, 0);
|
2005-09-15 01:56:09 +02:00
|
|
|
lex->sroutines_list_own_last= lex->sroutines_list.next;
|
|
|
|
lex->sroutines_list_own_elements= lex->sroutines_list.elements;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Remove routines which are only indirectly used by statement from
|
|
|
|
the set of routines used by this statement.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_remove_not_own_routines()
|
|
|
|
lex LEX representing statement
|
|
|
|
*/
|
|
|
|
|
|
|
|
void sp_remove_not_own_routines(LEX *lex)
|
|
|
|
{
|
|
|
|
Sroutine_hash_entry *not_own_rt, *next_rt;
|
|
|
|
for (not_own_rt= *(Sroutine_hash_entry **)lex->sroutines_list_own_last;
|
|
|
|
not_own_rt; not_own_rt= next_rt)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
It is safe to obtain not_own_rt->next after calling hash_delete() now
|
|
|
|
but we want to be more future-proof.
|
|
|
|
*/
|
|
|
|
next_rt= not_own_rt->next;
|
|
|
|
hash_delete(&lex->sroutines, (byte *)not_own_rt);
|
|
|
|
}
|
|
|
|
|
|
|
|
*(Sroutine_hash_entry **)lex->sroutines_list_own_last= NULL;
|
|
|
|
lex->sroutines_list.next= lex->sroutines_list_own_last;
|
|
|
|
lex->sroutines_list.elements= lex->sroutines_list_own_elements;
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Merge contents of two hashes representing sets of routines used
|
|
|
|
by statements or by other routines.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_update_sp_used_routines()
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
dst - hash to which elements should be added
|
|
|
|
src - hash from which elements merged
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
NOTE
|
|
|
|
This procedure won't create new Sroutine_hash_entry objects,
|
|
|
|
instead it will simply add elements from source to destination
|
|
|
|
hash. Thus time of life of elements in destination hash becomes
|
|
|
|
dependant on time of life of elements from source hash. It also
|
|
|
|
won't touch lists linking elements in source and destination
|
|
|
|
hashes.
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
*/
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
void sp_update_sp_used_routines(HASH *dst, HASH *src)
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
WL#2130: Table locking for stored FUNCTIONs
Collect all tables and SPs refered by a statement, and open all tables
with an implicit LOCK TABLES. Do find things refered by triggers and views,
we open them first (and then repeat this until nothing new is found), before
doing the actual lock tables.
mysql-test/r/information_schema.result:
Updated result for WL#2130.
mysql-test/r/lock.result:
Updated result for WL#2130.
mysql-test/r/sp-error.result:
Updated result for WL#2130.
mysql-test/r/sp.result:
Updated result for WL#2130.
mysql-test/r/view.result:
Updated result for WL#2130.
mysql-test/t/information_schema.test:
Disabled one test case due to a bug involving LOCK TABLES,
which shows up with WL#2130.
mysql-test/t/lock.test:
New error message with WL#2130. This change is under debate and might change
in the future, but will do for now.
mysql-test/t/sp-error.test:
Updated for WL#2130. Some tests are voided when table access does work from
functions.
mysql-test/t/sp.test:
Updated for WL#2130.
mysql-test/t/view.test:
Updated for WL#2130.
sql/item_func.cc:
We now have to set net.no_send_ok for functions too, with WL#2130.
sql/share/errmsg.txt:
Reused an error code since the old use was voided by WL#2130, but a new
one was needed instead (similar, but more specific restriction).
sql/sp.cc:
Fixed error handling and collection of used tables for WL#2130.
sql/sp.h:
Fixed error handling and collection of used tables for WL#2130.
sql/sp_head.cc:
Added support functions for collecting and merging hash tables and lists
of used tables from SPs and substatements, for WL#2130.
sql/sp_head.h:
Added support functions for collecting and merging hash tables and lists
of used tables from SPs and substatements, for WL#2130.
sql/sql_base.cc:
Changed the way table->query_id is tested and set during with locked tables
in effect. This makes some SP test cases work with WL#2130, but has a side
effect on some error cases with explicit LOCK TABLES. It's still debated if
this is the correct way, so it might change.
sql/sql_class.h:
Added flags for circumventing some interference between WL#2130 and mysql_make_view().
sql/sql_derived.cc:
Added some missing initializations. (Potential bugs.)
sql/sql_lex.cc:
Clear the new hash tables for WL#2130.
sql/sql_lex.h:
Added hash tables for procedures and tables too (as for functions), for WL#2130.
sql/sql_parse.cc:
WL#2130: Make table accesses from stored functions work by adding an implicit
LOCK TABLES around (most) executed statements. To do this, we have to go through
a loop where we collect all SPs and tables in mysql_execute_statement.
sql/sql_prepare.cc:
Cache both functions and procedures for WL#2130.
sql/sql_show.cc:
Added some missing initializations. (Potential bugs.)
sql/sql_view.cc:
Shortcut mysql_make_view() if thd->shortcut_make_view is true during
the pre-open phase for collecting tables in WL#2130. Otherwise, the
similar mechanism here causes interference.
sql/sql_yacc.yy:
For WL#2130, added caching of procedures and disallowed LOCK/UNLOCK TABLES in SPs.
2005-02-08 20:52:50 +01:00
|
|
|
for (uint i=0 ; i < src->records ; i++)
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
Sroutine_hash_entry *rt= (Sroutine_hash_entry *)hash_element(src, i);
|
|
|
|
if (!hash_search(dst, (byte *)rt->key.str, rt->key.length))
|
|
|
|
my_hash_insert(dst, (byte *)rt);
|
2003-03-02 19:17:41 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-12-21 11:48:03 +01:00
|
|
|
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
/*
|
2005-07-09 19:51:59 +02:00
|
|
|
Add contents of hash representing set of routines to the set of
|
|
|
|
routines used by statement.
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
|
|
|
|
SYNOPSIS
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_update_stmt_used_routines()
|
2005-12-07 10:27:17 +01:00
|
|
|
thd Thread context
|
|
|
|
lex LEX representing statement
|
|
|
|
src Hash representing set from which routines will be added
|
|
|
|
belong_to_view Uppermost view which uses these routines, 0 if none
|
2005-07-09 19:51:59 +02:00
|
|
|
|
|
|
|
NOTE
|
|
|
|
It will also add elements to end of 'LEX::sroutines_list' list.
|
|
|
|
*/
|
|
|
|
|
2005-12-07 10:27:17 +01:00
|
|
|
static void
|
|
|
|
sp_update_stmt_used_routines(THD *thd, LEX *lex, HASH *src,
|
|
|
|
TABLE_LIST *belong_to_view)
|
2005-07-09 19:51:59 +02:00
|
|
|
{
|
|
|
|
for (uint i=0 ; i < src->records ; i++)
|
|
|
|
{
|
|
|
|
Sroutine_hash_entry *rt= (Sroutine_hash_entry *)hash_element(src, i);
|
2005-12-07 10:27:17 +01:00
|
|
|
(void)add_used_routine(lex, thd->stmt_arena, &rt->key, belong_to_view);
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-09-15 01:56:09 +02:00
|
|
|
/*
|
|
|
|
Add contents of list representing set of routines to the set of
|
|
|
|
routines used by statement.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_update_stmt_used_routines()
|
2005-12-07 10:27:17 +01:00
|
|
|
thd Thread context
|
|
|
|
lex LEX representing statement
|
|
|
|
src List representing set from which routines will be added
|
|
|
|
belong_to_view Uppermost view which uses these routines, 0 if none
|
2005-09-15 01:56:09 +02:00
|
|
|
|
|
|
|
NOTE
|
|
|
|
It will also add elements to end of 'LEX::sroutines_list' list.
|
|
|
|
*/
|
|
|
|
|
2005-12-07 10:27:17 +01:00
|
|
|
static void sp_update_stmt_used_routines(THD *thd, LEX *lex, SQL_LIST *src,
|
|
|
|
TABLE_LIST *belong_to_view)
|
2005-09-15 01:56:09 +02:00
|
|
|
{
|
|
|
|
for (Sroutine_hash_entry *rt= (Sroutine_hash_entry *)src->first;
|
|
|
|
rt; rt= rt->next)
|
2005-12-07 10:27:17 +01:00
|
|
|
(void)add_used_routine(lex, thd->stmt_arena, &rt->key, belong_to_view);
|
2005-09-15 01:56:09 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
/*
|
|
|
|
Cache sub-set of routines used by statement, add tables used by these
|
|
|
|
routines to statement table list. Do the same for all routines used
|
|
|
|
by these routines.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_cache_routines_and_add_tables_aux()
|
2005-07-30 10:19:57 +02:00
|
|
|
thd - thread context
|
|
|
|
lex - LEX representing statement
|
|
|
|
start - first routine from the list of routines to be cached
|
|
|
|
(this list defines mentioned sub-set).
|
|
|
|
first_no_prelock - If true, don't add tables or cache routines used by
|
|
|
|
the body of the first routine (i.e. *start)
|
|
|
|
will be executed in non-prelocked mode.
|
2005-10-26 15:34:57 +02:00
|
|
|
tabs_changed - Set to TRUE some tables were added, FALSE otherwise
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
NOTE
|
|
|
|
If some function is missing this won't be reported here.
|
|
|
|
Instead this fact will be discovered during query execution.
|
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
RETURN VALUE
|
2005-11-25 17:09:26 +01:00
|
|
|
0 - success
|
|
|
|
non-0 - failure
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
*/
|
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
static int
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_cache_routines_and_add_tables_aux(THD *thd, LEX *lex,
|
2005-07-30 10:19:57 +02:00
|
|
|
Sroutine_hash_entry *start,
|
2005-10-26 15:34:57 +02:00
|
|
|
bool first_no_prelock, bool *tabs_changed)
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2005-10-26 15:34:57 +02:00
|
|
|
int ret= 0;
|
2005-12-06 14:25:12 +01:00
|
|
|
bool tabschnd= 0; /* Set if tables changed */
|
2005-07-30 10:19:57 +02:00
|
|
|
bool first= TRUE;
|
2005-07-09 19:51:59 +02:00
|
|
|
DBUG_ENTER("sp_cache_routines_and_add_tables_aux");
|
2003-03-02 19:17:41 +01:00
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
for (Sroutine_hash_entry *rt= start; rt; rt= rt->next)
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_name name(rt->key.str, rt->key.length);
|
|
|
|
int type= rt->key.str[0];
|
|
|
|
sp_head *sp;
|
2003-07-01 18:14:24 +02:00
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
if (!(sp= sp_cache_lookup((type == TYPE_ENUM_FUNCTION ?
|
|
|
|
&thd->sp_func_cache : &thd->sp_proc_cache),
|
|
|
|
&name)))
|
2003-03-02 19:17:41 +01:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
name.m_name.str= strchr(name.m_qname.str, '.');
|
|
|
|
name.m_db.length= name.m_name.str - name.m_qname.str;
|
|
|
|
name.m_db.str= strmake_root(thd->mem_root, name.m_qname.str,
|
|
|
|
name.m_db.length);
|
|
|
|
name.m_name.str+= 1;
|
|
|
|
name.m_name.length= name.m_qname.length - name.m_db.length - 1;
|
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
switch ((ret= db_find_routine(thd, type, &name, &sp)))
|
2003-07-07 14:55:10 +02:00
|
|
|
{
|
2005-10-26 15:34:57 +02:00
|
|
|
case SP_OK:
|
|
|
|
{
|
|
|
|
if (type == TYPE_ENUM_FUNCTION)
|
|
|
|
sp_cache_insert(&thd->sp_func_cache, sp);
|
|
|
|
else
|
|
|
|
sp_cache_insert(&thd->sp_proc_cache, sp);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case SP_KEY_NOT_FOUND:
|
|
|
|
ret= SP_OK;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/*
|
2005-11-25 17:09:26 +01:00
|
|
|
Any error when loading an existing routine is either some problem
|
|
|
|
with the mysql.proc table, or a parse error because the contents
|
|
|
|
has been tampered with (in which case we clear that error).
|
|
|
|
*/
|
|
|
|
if (ret == SP_PARSE_ERROR)
|
|
|
|
thd->clear_error();
|
2005-12-06 14:25:12 +01:00
|
|
|
/*
|
|
|
|
If we cleared the parse error, or when db_find_routine() flagged
|
|
|
|
an error with it's return value without calling my_error(), we
|
|
|
|
set the generic "mysql.proc table corrupt" error here.
|
|
|
|
*/
|
2005-11-25 17:09:26 +01:00
|
|
|
if (!thd->net.report_error)
|
|
|
|
{
|
2006-09-27 21:23:17 +02:00
|
|
|
/*
|
|
|
|
SP allows full NAME_LEN chars thus he have to allocate enough
|
|
|
|
size in bytes. Otherwise there is stack overrun could happen
|
|
|
|
if multibyte sequence is `name`. `db` is still safe because the
|
|
|
|
rest of the server checks agains NAME_LEN bytes and not chars.
|
|
|
|
Hence, the overrun happens only if the name is in length > 32 and
|
|
|
|
uses multibyte (cyrillic, greek, etc.)
|
|
|
|
|
|
|
|
!! Change 3 with SYSTEM_CHARSET_MBMAXLEN when it's defined.
|
|
|
|
*/
|
|
|
|
char n[NAME_LEN*3*2+2];
|
2005-11-25 17:09:26 +01:00
|
|
|
|
|
|
|
/* m_qname.str is not always \0 terminated */
|
|
|
|
memcpy(n, name.m_qname.str, name.m_qname.length);
|
|
|
|
n[name.m_qname.length]= '\0';
|
|
|
|
my_error(ER_SP_PROC_TABLE_CORRUPT, MYF(0), n, ret);
|
|
|
|
}
|
2005-10-26 15:34:57 +02:00
|
|
|
break;
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if (sp)
|
|
|
|
{
|
2005-07-30 10:19:57 +02:00
|
|
|
if (!(first && first_no_prelock))
|
|
|
|
{
|
2005-12-07 10:27:17 +01:00
|
|
|
sp_update_stmt_used_routines(thd, lex, &sp->m_sroutines,
|
|
|
|
rt->belong_to_view);
|
2005-11-25 17:09:26 +01:00
|
|
|
tabschnd|=
|
2005-12-07 10:47:25 +01:00
|
|
|
sp->add_used_tables_to_table_list(thd, &lex->query_tables_last,
|
|
|
|
rt->belong_to_view);
|
2005-07-30 10:19:57 +02:00
|
|
|
}
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
2005-07-30 10:19:57 +02:00
|
|
|
first= FALSE;
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
2005-11-25 17:09:26 +01:00
|
|
|
if (tabs_changed) /* it can be NULL */
|
|
|
|
*tabs_changed= tabschnd;
|
2005-10-26 15:34:57 +02:00
|
|
|
DBUG_RETURN(ret);
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Cache all routines from the set of used by statement, add tables used
|
|
|
|
by those routines to statement table list. Do the same for all routines
|
|
|
|
used by those routines.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_cache_routines_and_add_tables()
|
2005-07-30 10:19:57 +02:00
|
|
|
thd - thread context
|
|
|
|
lex - LEX representing statement
|
|
|
|
first_no_prelock - If true, don't add tables or cache routines used by
|
|
|
|
the body of the first routine (i.e. *start)
|
2005-10-26 15:34:57 +02:00
|
|
|
tabs_changed - Set to TRUE some tables were added, FALSE otherwise
|
2005-07-30 10:19:57 +02:00
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
RETURN VALUE
|
2005-11-25 17:09:26 +01:00
|
|
|
0 - success
|
|
|
|
non-0 - failure
|
2005-07-09 19:51:59 +02:00
|
|
|
*/
|
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
int
|
|
|
|
sp_cache_routines_and_add_tables(THD *thd, LEX *lex, bool first_no_prelock,
|
|
|
|
bool *tabs_changed)
|
2005-07-09 19:51:59 +02:00
|
|
|
{
|
|
|
|
return sp_cache_routines_and_add_tables_aux(thd, lex,
|
2005-07-30 10:19:57 +02:00
|
|
|
(Sroutine_hash_entry *)lex->sroutines_list.first,
|
2005-10-26 15:34:57 +02:00
|
|
|
first_no_prelock, tabs_changed);
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Add all routines used by view to the set of routines used by statement.
|
|
|
|
Add tables used by those routines to statement table list. Do the same
|
|
|
|
for all routines used by these routines.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_cache_routines_and_add_tables_for_view()
|
2005-12-07 10:27:17 +01:00
|
|
|
thd Thread context
|
|
|
|
lex LEX representing statement
|
|
|
|
view Table list element representing view
|
2005-12-07 10:47:25 +01:00
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
RETURN VALUE
|
2005-11-25 17:09:26 +01:00
|
|
|
0 - success
|
|
|
|
non-0 - failure
|
2005-07-09 19:51:59 +02:00
|
|
|
*/
|
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
int
|
2005-12-07 10:27:17 +01:00
|
|
|
sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex, TABLE_LIST *view)
|
2005-07-09 19:51:59 +02:00
|
|
|
{
|
|
|
|
Sroutine_hash_entry **last_cached_routine_ptr=
|
|
|
|
(Sroutine_hash_entry **)lex->sroutines_list.next;
|
2005-12-07 10:27:17 +01:00
|
|
|
sp_update_stmt_used_routines(thd, lex, &view->view->sroutines_list,
|
|
|
|
view->top_table());
|
2005-10-26 15:34:57 +02:00
|
|
|
return sp_cache_routines_and_add_tables_aux(thd, lex,
|
|
|
|
*last_cached_routine_ptr, FALSE,
|
|
|
|
NULL);
|
2005-07-09 19:51:59 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
Add triggers for table to the set of routines used by statement.
|
|
|
|
Add tables used by them to statement table list. Do the same for
|
|
|
|
all implicitly used routines.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_cache_routines_and_add_tables_for_triggers()
|
2005-12-07 10:27:17 +01:00
|
|
|
thd thread context
|
|
|
|
lex LEX respresenting statement
|
|
|
|
table Table list element for table with trigger
|
2005-10-26 15:34:57 +02:00
|
|
|
|
|
|
|
RETURN VALUE
|
2005-11-25 17:09:26 +01:00
|
|
|
0 - success
|
|
|
|
non-0 - failure
|
2005-07-09 19:51:59 +02:00
|
|
|
*/
|
|
|
|
|
2005-10-26 15:34:57 +02:00
|
|
|
int
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
|
2005-12-07 10:27:17 +01:00
|
|
|
TABLE_LIST *table)
|
2005-07-09 19:51:59 +02:00
|
|
|
{
|
2005-10-26 15:34:57 +02:00
|
|
|
int ret= 0;
|
2005-12-07 10:27:17 +01:00
|
|
|
Table_triggers_list *triggers= table->table->triggers;
|
|
|
|
if (add_used_routine(lex, thd->stmt_arena, &triggers->sroutines_key,
|
|
|
|
table->belong_to_view))
|
2005-07-09 19:51:59 +02:00
|
|
|
{
|
|
|
|
Sroutine_hash_entry **last_cached_routine_ptr=
|
|
|
|
(Sroutine_hash_entry **)lex->sroutines_list.next;
|
2005-07-19 18:06:49 +02:00
|
|
|
for (int i= 0; i < (int)TRG_EVENT_MAX; i++)
|
2005-07-28 15:10:14 +02:00
|
|
|
{
|
2005-07-19 18:06:49 +02:00
|
|
|
for (int j= 0; j < (int)TRG_ACTION_MAX; j++)
|
2005-07-28 15:10:14 +02:00
|
|
|
{
|
2005-07-09 19:51:59 +02:00
|
|
|
if (triggers->bodies[i][j])
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
{
|
2005-12-07 10:27:17 +01:00
|
|
|
(void)triggers->bodies[i][j]->
|
|
|
|
add_used_tables_to_table_list(thd, &lex->query_tables_last,
|
|
|
|
table->belong_to_view);
|
2005-07-09 19:51:59 +02:00
|
|
|
sp_update_stmt_used_routines(thd, lex,
|
2005-12-07 10:27:17 +01:00
|
|
|
&triggers->bodies[i][j]->m_sroutines,
|
|
|
|
table->belong_to_view);
|
Better approach for prelocking of tables for stored routines execution
and some SP-related cleanups.
- We don't have separate stage for calculation of list of tables
to be prelocked and doing implicit LOCK/UNLOCK any more.
Instead we calculate this list at open_tables() and do implicit
LOCK in lock_tables() (and UNLOCK in close_thread_tables()).
Also now we support cases when same table (with same alias) is
used several times in the same query in SP.
- Cleaned up execution of SP. Moved all common code which handles
LEX and does preparations before statement execution or complex
expression evaluation to auxilary sp_lex_keeper class. Now
all statements in SP (and corresponding instructions) that
evaluate expression which can contain subquery have their
own LEX.
mysql-test/r/lock.result:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/r/mysqldump.result:
Added dropping of view which is used in test to its beginning.
mysql-test/r/sp.result:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Replaced wrong results of test for bug #5240 with correct results after
fixing bug in handling of cursors.
mysql-test/t/lock.test:
Replaced wrong error code with the correct one after fixing bug in
SP-locking.
mysql-test/t/mysqldump.test:
Added dropping of view which is used in test to its beginning.
mysql-test/t/sp.test:
Added tests for improved SP-locking.
Temporarily disabled tests for SHOW PROCEDURE STATUS and alike
(Until Monty will allow to open mysql.proc under LOCK TABLES without
mentioning it in lock list).
Removed test for bug #1654 since we already test exactly this function
in one of SP-locking tests.
Removed comment about cursor's wrong behavior in test for bug #5240
after fixing bug which was its cause.
sql/item_func.cc:
Removed comment which is no longer true.
sql/mysql_priv.h:
Changed open_tables() signature.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sp.cc:
sp_find_procedure():
Added one more parameter which enforces cache only lookup.
sp_merge_hash():
Now uses its return value to indicate that first of two hashes changed
as result of merge.
sp_cache_routines():
This function caches all stored routines used in query now.
sql/sp.h:
- sp_find_procedure() now has one more parameter which enforces cache only
lookup.
- sp_merge_hash() now uses its return value to indicate that first of two
hashes changed as result of merge.
- sp_cache_routines() caches all stored routines now. So it does not need
third argument any more.
sql/sp_head.cc:
sp_head::sp_head():
Added initialization of new m_spfuns and m_spprocs members.
sp_head::execute():
Let us save/restore part of thread context which can be damaged by
execution of instructions.
sp_head::execute_function()/execute_procedure():
Now it is responsibility of caller to close tables used in
subqueries which are passed as routine parameters.
sp_head::restore_lex():
Let us accumulate information about routines used by this one
in new m_spfuns, m_spprocs hashes.
sp_lex_keeper::reset_lex_and_exec_core()
Main method of new auxilary sp_lex_keeper class to which instructions
delegate responsibility for handling LEX and preparations before
executing statement or calculating complex expression.
Since all instructions which calculate complex expression or execute
command now use sp_lex_keeper they have to implement
sp_instr::exec_core() method. Most of instruction specific logic
has moved from sp_instr::execute() to this new method.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sp_merge_table_list() became sp_head::merge_table_list() method. It
also treats sp_head::m_sptabs as multi-set of tables now.
sp_hash_to_table_list() became sp_head::add_used_tables_to_table_list().
It takes into account that sp_head::m_sptabs is multi-set and allocates
object into persistent arena of PS.
Removed sp_merge_table_hash(), sp_open_and_lock_tables(),
sp_unlock_tables(), sp_merge_routine_tables() methods since they are not
used by new prelocking mechanism.
Added sp_add_sp_tables_to_table_list() which serves for adding tables needed
by routines used in query to the query table list for prelocking.
sql/sp_head.h:
class sp_head:
- Added m_spfuns, m_spprocs members for storing names of routines used
by this routine.
- Added add_used_tables_to_table_list() method which allows to add
tables needed by this routine to query's table list.
- Converted sp_merge_table_list() to sp_head::merge_table_list() method.
- Changed semantics of THD::m_sptabs. Now it is multi-set which contains
only tables which are used by this routine and not routines that are
called from this one.
Removed sp_merge_routine_tables(), sp_merge_table_hash(),
sp_open_and_lock_tables(), sp_unlock_tables() calls since they are not
used for our prelocking list calculation.
Added auxilary sp_lex_keeper class to which instructions delegate
responsibility for handling LEX and preparations before executing
statement or calculating complex expression. This class uses
new sp_instr::exec_core() method which is responsible for executing
instruction's core function after all preparations were made.
All instructions which hold and calculate complex expression now have
their own LEX (by aggregating sp_lex_keeper instance). sp_instr_stmt
now uses sp_lex_keeper too.
Removed sp_instr_set_user_var class which is no longer used, because
nowdays we allow execution of statements in stored functions and
triggers.
sql/sp_rcontext.cc:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sp_rcontext.h:
Now sp_cursor holds pointer to sp_lex_keeper instead of LEX.
sql/sql_acl.cc:
acl_init(), grant_init():
Now we use simple_open_n_lock_tables() instead of explicit
calls to open_tables() and mysql_lock_tables().
sql/sql_base.cc:
Implemented support for execution of statements in "prelocked" mode.
When we have statement which uses stored routines explicitly or
implicitly (via views or triggers) we have to open and lock all tables
for these routines at the same time as tables for the main statement.
In fact we have to do implicit LOCK TABLES at the begining of such
statement and implict UNLOCK TABLES at its end. We call such mode
"prelocked".
When open_tables() is called for the statement tables which are needed
for execution of routines used by it are added to its tables list
(this process also caches all routines used). Implicit use of routines
is discovered when we open view or table with trigger and apropriate
tables are added to the table list at this moment. Statement which has
such extra tables in its list (well actually any that uses functions)
is marked as requiring prelocked mode for its execution.
When lock_tables() sees such statement it will issue implicit LOCK TABLES
for this extended table list instead of doing usual locking, it will also
set THD::prelocked_mode to indicate that we are in prelocked mode.
When open_tables()/lock_tables() are called for statement of stored
routine (substatement), they notice that we are running in prelocked mode
and use one of prelocked tables from those that are not used by upper
levels of execution.
close_thread_tables() for substatement won't really close tables used
but will mark them as free for reuse instead.
Finally when close_thread_tables() is called for the main statement it
really unlocks and closes all tables used.
Everything will work even if one uses such statement under real LOCK
TABLES (we are simply not doing implicit LOCK/UNLOCK in this case).
sql/sql_class.cc:
Added initialization of THD::prelocked_mode member.
sql/sql_class.h:
- Added prelocked_mode_type enum and THD::prelocked_mode member
which are used for indication whenever "prelocked mode" is on
(i.e. that statement uses stored routines and is executed under
implicit LOCK TABLES).
- Removed THD::shortcut_make_view which is no longer needed.
We use TABLE_LIST::prelocking_placeholder for the same purprose
now.
sql/sql_handler.cc:
Changed open_tables() invocation.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_lex.cc:
lex_start():
Added initialization of LEX::query_tables_own_last.
Unused LEX::sptabs member was removed.
st_lex::unlink_first_table()/link_first_table_back():
We should update LEX::query_tables_last properly if table list
contains(ed) only one element.
sql/sql_lex.h:
LEX:
- Removed sptabs member since it is no longer used.
- Added query_tables_own_last member, which if non-0 indicates that
statement requires prelocking (implicit LOCK TABLES) for its execution
and points to last own element in query table list. If it is zero
then this query does not need prelocking.
- Added requires_prelocking(), mark_as_requiring_prelocking(),
first_not_own_table() inline methods to incapsulate and simplify
usage of this new member.
sql/sql_parse.cc:
dispatch_command():
To properly leave prelocked mode when needed we should call
close_thread_tables() even if there are no open tables.
mysql_execute_command():
- Removed part of function which were responsible for doing implicit
LOCK TABLES before statement execution if statement used stored
routines (and doing UNLOCK TABLES at the end).
Now we do all this in open_tables()/lock_tables()/close_thread_tables()
instead.
- It is also sensible to reset errors before execution of statement
which uses routines.
- SQLCOM_DO, SQLCOM_SET_OPTION, SQLCOM_CALL
We should always try to open tables because even if statement has empty
table list, it can call routines using tables, which should be preopened
before statement execution.
- SQLCOM_CALL
We should not look up routine called in mysql.proc, since it should be
already cached by this moment by open_tables() call.
- SQLCOM_LOCK_TABLES
it is better to use simple_open_n_lock_tables() since we want to avoid
materialization of derived tables for this command.
sql/sql_prepare.cc:
mysql_test_update():
Changed open_tables() invocations. Now its 2nd parameter is in/out
since it can add elements to table list.
check_prepared_statement():
Since now we cache all routines used by statement in open_tables() we
don't need to do it explicitly.
mysql_stmt_prepare():
Now we should call close_thread_tables() when THD::lex points to the
LEX of statement which opened tables.
reset_stmt_for_execute():
Commented why we are resetting all tables in table list.
sql/sql_trigger.h:
Table_triggers_list::process_triggers():
We should surpress sending of ok packet when we are calling trigger's
routine, since now we allow statements in them.
sql/sql_update.cc:
Changed open_tables() invocations.
Now its 2nd parameter is in/out since it can add elements to table list.
sql/sql_view.cc:
mysql_make_view():
- Removed handling of routines used in view. Instead we add tables which
are needed for their execution to statement's table list in
open_tables().
- Now we use TABLE_LIST::prelocking_placeholder instead of
THD::shortcut_make_view for indicating that view is opened
only to discover which tables and routines it uses (this happens
when we build extended table list for prelocking). Also now we try
to avoid to modify main LEX in this case (except of its table list).
- Corrected small error we added tables to the table list of the main
LEX without updating its query_tables_last member properly.
sql/sql_yacc.yy:
Now each expression which is used in SP statements and can contain
subquery has its own LEX. This LEX is stored in corresponding sp_instr
object and used along with Item tree for expression calculation.
We don't need sp_instr_set_user_var() anymore since now we allow
execution of statements in stored functions and triggers.
sql/table.h:
Added TABLE_LIST::prelocking_placeholder member for distinguishing
elements of table list which does not belong to the statement itself
and added there only for prelocking (as they are to be used by routines
called by this statement).
sql/tztime.cc:
my_tz_init():
Now we use more simplier simple_open_n_lock_tables() call instead of
open_tables()/lock_tables() pair.
2005-03-04 14:35:28 +01:00
|
|
|
}
|
2005-07-28 15:10:14 +02:00
|
|
|
}
|
|
|
|
}
|
2005-10-26 15:34:57 +02:00
|
|
|
ret= sp_cache_routines_and_add_tables_aux(thd, lex,
|
|
|
|
*last_cached_routine_ptr,
|
|
|
|
FALSE, NULL);
|
2003-03-02 19:17:41 +01:00
|
|
|
}
|
2005-10-26 15:34:57 +02:00
|
|
|
return ret;
|
2003-02-26 19:22:29 +01:00
|
|
|
}
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
|
2005-07-09 19:51:59 +02:00
|
|
|
|
2004-06-09 14:19:43 +02:00
|
|
|
/*
|
|
|
|
* Generates the CREATE... string from the table information.
|
|
|
|
* Returns TRUE on success, FALSE on (alloc) failure.
|
|
|
|
*/
|
|
|
|
static bool
|
|
|
|
create_string(THD *thd, String *buf,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
int type,
|
2004-03-11 17:18:59 +01:00
|
|
|
sp_name *name,
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
const char *params, ulong paramslen,
|
|
|
|
const char *returns, ulong returnslen,
|
|
|
|
const char *body, ulong bodylen,
|
2006-03-02 13:18:49 +01:00
|
|
|
st_sp_chistics *chistics,
|
|
|
|
const LEX_STRING *definer_user,
|
|
|
|
const LEX_STRING *definer_host)
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
{
|
2004-06-09 14:19:43 +02:00
|
|
|
/* Make some room to begin with */
|
|
|
|
if (buf->alloc(100 + name->m_qname.length + paramslen + returnslen + bodylen +
|
2006-03-02 13:18:49 +01:00
|
|
|
chistics->comment.length + 10 /* length of " DEFINER= "*/ +
|
|
|
|
USER_HOST_BUFF_SIZE))
|
2004-06-09 14:19:43 +02:00
|
|
|
return FALSE;
|
2003-12-21 11:48:03 +01:00
|
|
|
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN("CREATE "));
|
2006-03-02 13:18:49 +01:00
|
|
|
append_definer(thd, buf, definer_user, definer_host);
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
if (type == TYPE_ENUM_FUNCTION)
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN("FUNCTION "));
|
2004-06-09 14:19:43 +02:00
|
|
|
else
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN("PROCEDURE "));
|
2004-06-09 14:19:43 +02:00
|
|
|
append_identifier(thd, buf, name->m_name.str, name->m_name.length);
|
|
|
|
buf->append('(');
|
|
|
|
buf->append(params, paramslen);
|
|
|
|
buf->append(')');
|
|
|
|
if (type == TYPE_ENUM_FUNCTION)
|
|
|
|
{
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" RETURNS "));
|
2004-06-09 14:19:43 +02:00
|
|
|
buf->append(returns, returnslen);
|
|
|
|
}
|
|
|
|
buf->append('\n');
|
2004-10-14 18:07:09 +02:00
|
|
|
switch (chistics->daccess) {
|
|
|
|
case SP_NO_SQL:
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" NO SQL\n"));
|
2004-10-14 18:07:09 +02:00
|
|
|
break;
|
|
|
|
case SP_READS_SQL_DATA:
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" READS SQL DATA\n"));
|
2004-10-14 18:07:09 +02:00
|
|
|
break;
|
|
|
|
case SP_MODIFIES_SQL_DATA:
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" MODIFIES SQL DATA\n"));
|
2004-10-14 18:07:09 +02:00
|
|
|
break;
|
2004-11-03 11:39:38 +01:00
|
|
|
case SP_DEFAULT_ACCESS:
|
|
|
|
case SP_CONTAINS_SQL:
|
|
|
|
/* Do nothing */
|
|
|
|
break;
|
2004-10-14 18:07:09 +02:00
|
|
|
}
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
if (chistics->detistic)
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" DETERMINISTIC\n"));
|
2004-10-14 18:07:09 +02:00
|
|
|
if (chistics->suid == SP_IS_NOT_SUID)
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" SQL SECURITY INVOKER\n"));
|
2003-12-13 16:40:52 +01:00
|
|
|
if (chistics->comment.length)
|
2003-12-21 01:07:45 +01:00
|
|
|
{
|
2005-11-23 00:29:25 +01:00
|
|
|
buf->append(STRING_WITH_LEN(" COMMENT "));
|
2004-06-09 14:19:43 +02:00
|
|
|
append_unescaped(buf, chistics->comment.str, chistics->comment.length);
|
|
|
|
buf->append('\n');
|
2003-12-21 01:07:45 +01:00
|
|
|
}
|
2004-06-09 14:19:43 +02:00
|
|
|
buf->append(body, bodylen);
|
|
|
|
return TRUE;
|
In order to make ALTER PROCEDURE|FUNCTION work correctly, and in general to
make characteristics (and SHOW) work right, we had to separate the old
definition blob in the mysql.proc table into separate fields for parameters,
return type, and body, and handle the characteristics (like SQL SECURITY)
separately... and then reassemble the CREATE string for parsing, of course.
This is rather ugly, mostly the parser bit. (Hopefully that will be better
with the new parser.)
Docs/sp-imp-spec.txt:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
mysql-test/r/sp.result:
New characteristics tests.
mysql-test/t/sp.test:
New characteristics tests.
scripts/mysql_create_system_tables.sh:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
scripts/mysql_fix_privilege_tables.sql:
Separated the definitions string of the procedure into different columns
in the mysql.proc schema.
sql/sp.cc:
Separated the definitions string of the procedure into different columns.
Rewrote much of the code related this (have a assemble the definition
string from its different parts now) and the way characteristics are now
handled, in order to make ALTER actually work.
sql/sp.h:
Changed prototypes.
sql/sp_head.cc:
Rewrote much of the code related to the new mysql.proc schema with separate
definition fields (have to assemble the definition string from its different
parts now) and the way characteristics are now handled, in order to make ALTER
actually work.
sql/sp_head.h:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
sql/sql_yacc.yy:
Separated the different parts of the definition strings: name, parameters,
return type (for functions) and body.
This is ugly and messy; hopefully there's a more elegant way to do this
when the new parser is installed.
2003-12-12 14:05:29 +01:00
|
|
|
}
|
2004-03-11 17:18:59 +01:00
|
|
|
|
|
|
|
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
Change the current database if needed.
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
sp_use_new_db()
|
|
|
|
thd thread handle
|
|
|
|
new_db new database name (a string and its length)
|
|
|
|
old_db [IN] str points to a buffer where to store the old
|
|
|
|
database, length contains the size of the buffer
|
|
|
|
[OUT] if old db was not NULL, its name is copied
|
|
|
|
to the buffer pointed at by str and length is updated
|
|
|
|
accordingly. Otherwise str[0] is set to '\0' and length
|
|
|
|
is set to 0. The out parameter should be used only if
|
|
|
|
the database name has been changed (see dbchangedp).
|
|
|
|
dbchangedp [OUT] is set to TRUE if the current database is changed,
|
|
|
|
FALSE otherwise. A database is not changed if the old
|
|
|
|
name is the same as the new one, both names are empty,
|
|
|
|
or an error has occurred.
|
|
|
|
|
|
|
|
RETURN VALUE
|
|
|
|
0 success
|
|
|
|
1 access denied or out of memory (the error message is
|
|
|
|
set in THD)
|
|
|
|
*/
|
2004-03-11 17:18:59 +01:00
|
|
|
|
|
|
|
int
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
sp_use_new_db(THD *thd, LEX_STRING new_db, LEX_STRING *old_db,
|
2004-06-08 18:41:18 +02:00
|
|
|
bool no_access_check, bool *dbchangedp)
|
2004-03-11 17:18:59 +01:00
|
|
|
{
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
int ret;
|
2004-03-11 17:18:59 +01:00
|
|
|
DBUG_ENTER("sp_use_new_db");
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
DBUG_PRINT("enter", ("newdb: %s", new_db.str));
|
2004-03-11 17:18:59 +01:00
|
|
|
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
/*
|
|
|
|
Set new_db to an empty string if it's NULL, because mysql_change_db
|
|
|
|
requires a non-NULL argument.
|
|
|
|
new_db.str can be NULL only if we're restoring the old database after
|
|
|
|
execution of a stored procedure and there were no current database
|
|
|
|
selected. The stored procedure itself must always have its database
|
|
|
|
initialized.
|
|
|
|
*/
|
|
|
|
if (new_db.str == NULL)
|
|
|
|
new_db.str= empty_c_string;
|
|
|
|
|
|
|
|
if (thd->db)
|
2004-03-11 17:18:59 +01:00
|
|
|
{
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
old_db->length= (strmake(old_db->str, thd->db, old_db->length) -
|
|
|
|
old_db->str);
|
2004-03-11 17:18:59 +01:00
|
|
|
}
|
|
|
|
else
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
{
|
|
|
|
old_db->str[0]= '\0';
|
|
|
|
old_db->length= 0;
|
2004-03-11 17:18:59 +01:00
|
|
|
}
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
|
|
|
|
/* Don't change the database if the new name is the same as the old one. */
|
|
|
|
if (my_strcasecmp(system_charset_info, old_db->str, new_db.str) == 0)
|
2004-03-11 17:18:59 +01:00
|
|
|
{
|
2004-06-08 18:41:18 +02:00
|
|
|
*dbchangedp= FALSE;
|
2004-03-11 17:18:59 +01:00
|
|
|
DBUG_RETURN(0);
|
|
|
|
}
|
|
|
|
|
2007-03-27 19:55:01 +02:00
|
|
|
ret= mysql_change_db(thd, &new_db, no_access_check);
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
|
|
|
|
*dbchangedp= ret == 0;
|
|
|
|
DBUG_RETURN(ret);
|
2004-03-11 17:18:59 +01:00
|
|
|
}
|
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
|
|
|
|