Fix for BUG#16676: Database CHARSET not used for stored procedures
The problem in BUG#16211 is that CHARSET-clause of the return type for
stored functions is just ignored.
The problem in BUG#16676 is that if character set is not explicitly
specified for sp-variable, the server character set is used instead
of the database one.
The fix has two parts:
- always store CHARSET-clause of the return type along with the
type definition in mysql.proc.returns column. "Always" means that
CHARSET-clause is appended even if it has not been explicitly
specified in CREATE FUNCTION statement (this affects BUG#16211 only).
Storing CHARSET-clause if it is not specified is essential to avoid
changing character set if the database character set is altered in
the future.
NOTE: this change is not backward compatible with the previous releases.
- use database default character set if CHARSET-clause is not explicitly
specified (this affects both BUG#16211 and BUG#16676).
NOTE: this also breaks backward compatibility.
mysql-test/r/mysqldump.result:
Updated result file.
mysql-test/r/sp.result:
Updated result file.
mysql-test/t/sp.test:
Provided test cases for BUG#16211, BUG#16676.
sql/mysql_priv.h:
Added two convenient functions for work with databases.
sql/sp.cc:
1. Add CHARSET-clause to CREATE-statement if it has been explicitly specified.
2. Polishing -- provided some comments.
sql/sp_head.cc:
Use database charset as default charset of sp-variable.
sql/sp_head.h:
Move init_sp_name() out of init_strings().
sql/sql_db.cc:
Two new functions created:
- load_db_opt_by_name();
- check_db_dir_existence();
sql/sql_show.cc:
Eliminate duplicated code by using
check_db_dir_existence() and load_db_opt_by_name()
sql/sql_table.cc:
Eliminate duplicated code by using
check_db_dir_existence() and load_db_opt_by_name()
sql/sql_yacc.yy:
Call sp_head::init_sp_name() to initialize stored routine name.
context.
Routine arguments were evaluated in the security context of the routine
itself, not in the caller's context.
The bug is fixed the following way:
- Item_func_sp::find_and_check_access() has been split into two
functions: Item_func_sp::find_and_check_access() itself only
finds the function and check that the caller have EXECUTE privilege
on it. New function set_routine_security_ctx() changes security
context for SUID routines and checks that definer have EXECUTE
privilege too.
- new function sp_head::execute_trigger() is called from
Table_triggers_list::process_triggers() instead of
sp_head::execute_function(), and is effectively just as the
sp_head::execute_function() is, with all non-trigger related code
removed, and added trigger-specific security context switch.
- call to Item_func_sp::find_and_check_access() stays outside
of sp_head::execute_function(), and there is a code in
sql_parse.cc before the call to sp_head::execute_procedure() that
checks that the caller have EXECUTE privilege, but both
sp_head::execute_function() and sp_head::execute_procedure() call
set_routine_security_ctx() after evaluating their parameters,
and restore the context after the body is executed.
mysql-test/r/sp-security.result:
Add test case for bug#18630: Arguments of suid routine calculated
in wrong security context.
mysql-test/t/sp-security.test:
Add result for bug#18630: Arguments of suid routine calculated
in wrong security context.
sql/item_func.cc:
Do not change security context before executing the function, as it
will be changed after argument evaluation.
Do not change security context in Item_func_sp::find_and_check_access().
sql/item_func.h:
Change prototype for Item_func_sp::find_and_check_access().
sql/sp_head.cc:
Add set_routine_security_ctx() function.
Add sp_head::execute_trigger() method.
Change security context in sp_head::execute_trigger(), and in
sp_head::execute_function() and sp_head::execute_procedure()
after argument evaluation.
Move pop_all_cursors() call to sp_head::execute().
sql/sp_head.h:
Add declaration for sp_head::execute_trigger() and
set_routine_security_ctx().
sql/sql_parse.cc:
Do not change security context before executing the procedure, as it
will be changed after argument evaluation.
sql/sql_trigger.cc:
Call new sp_head::execute_trigger() instead of
sp_head::execute_function(), which is responsible to switch
security context.
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.
Stored procedure execution sometimes placed the address of auto variables
in the list of Item changes to undo in THD::rollback_item_tree_changes().
This could cause stack corruption.
sql/sp_head.cc:
Avoid storing address of auto variables in global rollback list, to
prevent stack memory corruption.
sql/sp_head.h:
Avoid storing address of auto variables in global rollback list, to
prevent stack memory corruption.
sql/sp_rcontext.cc:
Avoid storing address of auto variables in global rollback list, to
prevent stack memory corruption.
sql/sp_rcontext.h:
Avoid storing address of auto variables in global rollback list, to
prevent stack memory corruption.
sql/sql_class.cc:
Avoid storing address of auto variables in global rollback list, to
prevent stack memory corruption.
Removed sp-goto.test, sp-goto.result and all (disabled) GOTO code.
Also removed some related code that's not needed any more (no possible
unresolved label references any more, so no need to check for them).
NB: Keeping the ER_SP_GOTO_IN_HNDLR in errmsg.txt; it might become useful
in the future, and removing it (and thus re-enumerating error codes)
might upset things. (Anything referring to explicit error codes.)
BitKeeper/deleted/.del-sp-goto.result~f343103c63f64b7a:
Delete: mysql-test/r/sp-goto.result
BitKeeper/deleted/.del-sp-goto.test~5054d3f729692d3d:
Delete: mysql-test/t/sp-goto.test
mysql-test/t/disabled.def:
sp-goto.test no longer exists.
sql/lex.h:
Removed (disabled) GOTO definitions.
sql/sp_head.cc:
Removed sp_head::check_backpatch() and simplified sp_head::backpatch().
Without GOTO, unresolved label references are not possible, so no need
to check for them.
sql/sp_head.h:
Removed sp_head::check_backpatch(). (Not needed with no GOTO)
sql/sp_pcontext.cc:
SP_LAB_GOTO was renamed to SP_LAB_IMPL
sql/sp_pcontext.h:
Removed SP_LAB_REF (no longer needed) and renamed SP_LAB_GOTO
to SP_LAB_IMPL, since it's only used for implicit labels now.
sql/sql_yacc.yy:
Removed GOTO symbols and (disabled) code, and the no longer needed
sp_head::check_backpatch() calls.
Also added comments, and fixing some coding style (mostly in comments too).
There are no functional changes, so no tests or documentation needed.
(This was originally part of a bugfix, but it was decided to not include this
in that patch; instead it's done separately.)
sql/sp_head.cc:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
sql/sp_head.h:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
sql/sp_pcontext.cc:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
Also added comments, and fixing some coding style (mostly in comments too).
sql/sp_pcontext.h:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
Also added comments, and fixing some coding style (mostly in comments too).
sql/sp_rcontext.cc:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
sql/sp_rcontext.h:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
sql/sql_yacc.yy:
Renaming sp_pcontext members and methods; less cryptic and more consistent.
The idea is to add DEFINER-clause in CREATE PROCEDURE and CREATE FUNCTION
statements. Almost all support of definer in stored routines had been already
done before this patch.
NOTE: this patch changes behaviour of dumping stored routines in mysqldump.
Before this patch, mysqldump did not dump DEFINER-clause for stored routines
and this was documented behaviour. In order to get full information about stored
routines, one should have dumped mysql.proc table. This patch changes this
behaviour, so that DEFINER-clause is dumped.
Since DEFINER-clause is not supported in CREATE PROCEDURE | FUNCTION statements
before this patch, the clause is covered by additional version-specific comments.
client/mysqldump.c:
Updated the code for dumping stored routines: cover DEFINER-clause
into version-specific comment.
mysql-test/r/gis.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/information_schema.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/mysqldump.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/rpl_ddl.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/rpl_sp.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/rpl_trigger.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/sp-security.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/sp.result:
Updated result file after adding DEFINER-clause.
mysql-test/r/sql_mode.result:
Updated result file after adding DEFINER-clause.
mysql-test/t/sp-security.test:
Updated result file after adding DEFINER-clause.
sql/sp.cc:
Added DEFINER-clause.
sql/sp_head.cc:
Added a new convenient variant of set_definer() operation.
sql/sp_head.h:
Updated result file after adding DEFINER-clause.
sql/sql_lex.h:
Renamed trigger_definition_begin into stmt_definition_begin to be used for
triggers and stored routines.
sql/sql_parse.cc:
Check DEFINER-clause.
sql/sql_trigger.cc:
Renamed trigger_definition_begin into stmt_definition_begin to be used for
triggers and stored routines.
sql/sql_yacc.yy:
Added DEFINER-clause.
into mysql.com:/extern/mysql/work/bug16568/mysql-5.0
mysql-test/r/sp.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
After trying multiple inheritance (to messy and hard make it work) and
sublassing jump_if_not (worked, but ugly), decided to on this solution
instead:
Inserting an abstract sp_instr_opt_meta class as parent for all instructions
with destinations makes it possible to handle a continuation pointer for
sp_instr_set_case_expr too.
Note: No special test case; the fix is captured by the changed behaviour of
bug14643_2, and bug14498_4 (formerly disabled), in sp.test.
mysql-test/r/sp.result:
Updated results for BUG#16568 (affects results for bug14643_2 and bug14498_4)
mysql-test/t/sp.test:
Enabled test bug14498_4 for BUG#16568.
sql/sp_head.cc:
Changed type of some parameters and variables (sp_instr_opt_meta instead of sp_instr_jump*).
Added consistency check of m_ip member in instructions in sp_head::show_routine_code().
Updated print() method of, and added opt_mark() and opt_move() methods to
sp_instr_set_case_expr, to handle the new continuation destination.
sql/sp_head.h:
New abstract class between sp_instr and instructions with destinations, in particular
sp_instr_set_case_expr, for continuation destination handling.
Changed type of some parameters and variables (sp_instr_opt_meta instead of sp_instr_jump*).
Added opt_mark(), opt_move() and set_destination() methods to
sp_instr_set_case_expr.
sql/sql_parse.cc:
Fixed small bug at show_routine_code() call (tested return value the wrong way).
sql/sql_yacc.yy:
sp_instr_set_case_expr is now added to backpatch list (for the new cont. destination).
Second version.
The problem was that the optimizer didn't work correctly with forwards jumps
to "no-op" hpop and cpop instructions.
Don't generate "no-op" instructions (hpop 0 and cpop 0), it isn't actually
necessary.
mysql-test/r/sp-code.result:
Updated results for new test case (BUG#15737)
mysql-test/t/sp-code.test:
New test case (BUG#15737)
sql/sp_head.cc:
Removed backpatch methods from sp_instr_hpop/cpop, since they're not needed any more.
Added more documentation to sp_head::optimize()
sql/sp_head.h:
Removed backpatch and opt_mark methods from sp_instr_hpop/cpop, since they're not needed
any more.
Added comments to optimizer methods in sp_instr.
sql/sql_yacc.yy:
Don't generate "no-op" hpop and cpop instructions for LEAVE, it's not necessary.
Just generate them when needed.
into mysql.com:/extern/mysql/work/bug15658/mysql-5.0
mysql-test/r/sp-error.result:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
Auto merged
Empty strings (and names with trailing spaces) should not be allowed.
mysql-test/r/sp-error.result:
New testcase for BUG#15658
mysql-test/t/sp-error.test:
New testcase for BUG#15658
sql/share/errmsg.txt:
New error message for bad stored routine names.
sql/sp_head.cc:
Added function for checking SP names. (Mustn't be empty or contain trailing spaces.)
sql/sp_head.h:
Added function for checking SP names.
sql/sql_yacc.yy:
Check db and name for stored routines.
into mysql.com:/home/my/mysql-5.0
mysql-test/r/create.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/t/create.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/field.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/log_event.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/t/disabled.def:
Manual merge
sql/mysqld.cc:
Manual merge
sql/sp_head.cc:
Manual merge
sql/sql_trigger.cc:
Manual merge
- Fixed tests
- Optimized new code
- Fixed some unlikely core dumps
- Better bug fixes for:
- #14397 - OPTIMIZE TABLE with an open HANDLER causes a crash
- #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null
mysql-test/r/create.result:
Update results after removing wrong warnings for CREATE ... SELECT
New tests
mysql-test/r/handler.result:
Drop used tables
mysql-test/r/kill.result:
Make test portable
mysql-test/r/mysqlshow.result:
Drop tables used by previous test
mysql-test/r/trigger.result:
Reuse old procedure name
mysql-test/r/view.result:
Extra tests
mysql-test/t/create.test:
New tests to test fix of removing wrong warnings for CREATE ... SELECT
mysql-test/t/disabled.def:
Enable 'kill' test (should now be portable)
mysql-test/t/handler.test:
Drop used tables
mysql-test/t/kill.test:
Make test portable even if kill doesn't work at once
mysql-test/t/mysqlshow.test:
Drop tables used by previous test
mysql-test/t/trigger.test:
Reuse old procedure name
mysql-test/t/view.test:
Extra tests
sql/field.cc:
Removed compiler warning
sql/ha_federated.cc:
my_snprintf -> strmake()
(Simple optimization)
sql/ha_ndbcluster.cc:
Indentation cleanups and trival optimization
sql/item.cc:
Moved save_org_in_field() to item.cc to make it easier to test
Remove setting of null_value as this is not needed
sql/item.h:
Moved save_org_in_field() to item.cc to make it easier to test
sql/log_event.cc:
Remove inline of slave_load_file_stem()
Added 'extension' parameter to slave_load_file_stem() to get smaller code
Removed not critical (or needed) DBUG_ASSERT()'s
Cleaned up usage of slave_load_file_stem() to not depend on constant string lengths
Indentation fixes
sql/opt_range.cc:
Moved code from declaration to function body
(To make it more readable)
sql/parse_file.cc:
Fixed DBUG_PRINT
sql/sp.cc:
Simple cleanups
- Removed not needed {} level
- Ensure saved variables starts with old_
sql/sp_head.cc:
Indentation fixes
Remove core dump when using --debug when m_next_cached_sp == 0
Fixed compiler warnings
Trivial optimizations
sql/sp_head.h:
Changed argument to set_definer() to const
Added THD argument to recursion_level_error() to avoid call to current_thd
sql/sql_acl.cc:
Removed not needed test (first_not_own_table is the guard)
sql/sql_base.cc:
Removed extra empty line
sql/sql_handler.cc:
Don't test table version in mysql_ha_read() as this is already tested in lock_tables()
Moved call to insert_fields to be after lock_table() to guard aganst reopen of tables
(Better fix for Bug#14397 - OPTIMIZE TABLE with an open HANDLER causes a crash)
sql/sql_insert.cc:
Mark fields that are set in CREATE ... SELECT as used
(Removed wrong warnings about field not having a default value)
sql/sql_parse.cc:
Removed not needed test of 'tables' (first_not_own_table is the guard)
Simplify code
sql/sql_select.cc:
Use group->field to check if value is null instead of item called by 'save_org_in_field'
This is a better bug fix for #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null)
sql/sql_trigger.cc:
Move sql_modes_parameters outside of function
Indentation fixes
Fixed compiler warning
Ensure that thd->lex->query_tables_own_last is set properly before calling check_table_access()
(This allows us to remove the extra test in check_grant() and check_table_access())
according to the standard.
The idea is to use Field-classes to implement stored routines
variables. Also, we should provide facade to Item-hierarchy
by Item_field class (it is necessary, since SRVs take part
in expressions).
The patch fixes the following bugs:
- BUG#8702: Stored Procedures: No Error/Warning shown for inappropriate data
type matching;
- BUG#8768: Functions: For any unsigned data type, -ve values can be passed
and returned;
- BUG#8769: Functions: For Int datatypes, out of range values can be passed
and returned;
- BUG#9078: STORED PROCDURE: Decimal digits are not displayed when we use
DECIMAL datatype;
- BUG#9572: Stored procedures: variable type declarations ignored;
- BUG#12903: upper function does not work inside a function;
- BUG#13705: parameters to stored procedures are not verified;
- BUG#13808: ENUM type stored procedure parameter accepts non-enumerated
data;
- BUG#13909: Varchar Stored Procedure Parameter always BINARY string (ignores
CHARACTER SET);
- BUG#14161: Stored procedure cannot retrieve bigint unsigned;
- BUG#14188: BINARY variables have no 0x00 padding;
- BUG#15148: Stored procedure variables accept non-scalar values;
mysql-test/r/ctype_ujis.result:
Explicitly specify correct charset.
mysql-test/r/schema.result:
Drop our test database to not affect this test if some test
left it cause of failure.
mysql-test/r/show_check.result:
Drop our test database to not affect this test if some test
left it cause of failure.
mysql-test/r/skip_name_resolve.result:
Ignore columns with unpredictable values.
mysql-test/r/sp-big.result:
Add cleanup statement.
mysql-test/r/sp-dynamic.result:
Add cleanup statements.
mysql-test/r/sp.result:
Update result file.
mysql-test/r/sum_distinct-big.result:
Update result file.
mysql-test/r/type_newdecimal-big.result:
Update result file.
mysql-test/t/ctype_ujis.test:
Explicitly specify correct charset.
mysql-test/t/schema.test:
Drop our test database to not affect this test if some test
left it cause of failure.
mysql-test/t/show_check.test:
Drop our test database to not affect this test if some test
left it cause of failure.
mysql-test/t/skip_name_resolve.test:
Ignore columns with unpredictable values.
mysql-test/t/sp-big.test:
Add cleanup statement.
mysql-test/t/sp-dynamic.test:
Add cleanup statements.
mysql-test/t/sp.test:
Non-scalar values prohibited for assignment to SP-vars;
polishing.
mysql-test/t/type_newdecimal-big.test:
Update type specification so that the variables
can contain the large values used in the test.
sql/field.cc:
Extract create_field::init() to initialize an existing
instance of create_field from new_create_field().
sql/field.h:
Extract create_field::init() to initialize an existing
instance of create_field from new_create_field().
sql/item.cc:
- Introduce a new class: Item_sp_variable -- a base class
of stored-routine-variables classes;
- Introduce Item_case_expr -- an Item, which is used to access
to the expression of CASE statement;
sql/item.h:
- Introduce a new class: Item_sp_variable -- a base class
of stored-routine-variables classes;
- Introduce Item_case_expr -- an Item, which is used to access
to the expression of CASE statement;
sql/item_func.cc:
Pass the Field (instead of Item) for the return value of
a function to the function execution routine.
sql/item_func.h:
Pass the Field (instead of Item) for the return value of
a function to the function execution routine.
sql/mysql_priv.h:
Move create_virtual_tmp_table() out of sql_select.h.
sql/sp.cc:
Use create_result_field() instead of make_field().
sql/sp_head.cc:
- Add a function to map enum_field_types to Item::Type;
- Add sp_instr_push_case_expr instruction -- an instruction
to push CASE expression into the active running context;
- Add sp_instr_pop_case_expr instruction -- an instruction
to pop CASE expression from the active running context;
- Adapt the SP-execution code to using Fields instead of Items
for SP-vars;
- Use create_field structure for field description instead of
a set of members.
sql/sp_head.h:
- Add a function to map enum_field_types to Item::Type;
- Add sp_instr_push_case_expr instruction -- an instruction
to push CASE expression into the active running context;
- Add sp_instr_pop_case_expr instruction -- an instruction
to pop CASE expression from the active running context;
- Adapt the SP-execution code to using Fields instead of Items
for SP-vars;
- Use create_field structure for field description instead of
a set of members.
sql/sp_pcontext.cc:
- Change rules to assign an index of SP-variable: use
transparent index;
- Add an operation to retrieve a list of defined SP-vars
from the processing context recursively.
sql/sp_pcontext.h:
- Change rules to assign an index of SP-variable: use
transparent index;
- Add an operation to retrieve a list of defined SP-vars
from the processing context recursively.
sql/sp_rcontext.cc:
- Change rules to assign an index of SP-variable: use
transparent index;
- Use a tmp virtual table to store SP-vars instead of Items;
- Provide operations to work with CASE expresion.
sql/sp_rcontext.h:
- Change rules to assign an index of SP-variable: use
transparent index;
- Use a tmp virtual table to store SP-vars instead of Items;
- Provide operations to work with CASE expresion.
sql/sql_class.cc:
- Reflect Item_splocal ctor changes;
- Item_splocal::get_offset() has been renamed to get_var_idx().
sql/sql_class.h:
Polishing.
sql/sql_parse.cc:
Extract create_field::init() to initialize an existing
instance of create_field from new_create_field().
sql/sql_select.cc:
Take care of BLOB columns in create_virtual_tmp_table().
sql/sql_select.h:
Move create_virtual_tmp_table() out of sql_select.h.
sql/sql_trigger.cc:
Use boolean constants for boolean type instead of numerical ones.
sql/sql_yacc.yy:
Provide an instance of create_field for each SP-var.
mysql-test/include/sp-vars.inc:
The definitions of common-procedures, which are created
under different circumstances.
mysql-test/r/sp-vars.result:
Result file for the SP-vars test.
mysql-test/sp-vars.test:
A new test for checking SP-vars functionality.
impossible view security".
We should not expose names of tables which are explicitly or implicitly (via
routine or trigger) used by view even if we find that they are missing.
So during building of list of prelocked tables for statement we track which
routines (and therefore tables for these routines) are used from views. We
mark elements of LEX::routines set which correspond to routines used in views
by setting Sroutine_hash_entry::belong_to_view member to point to TABLE_LIST
object for topmost view which uses routine. We propagate this mark to all
routines which are used by this routine and which we add to this set. We also
mark tables used by such routine which we add to the list of tables for
prelocking as belonging to this view.
mysql-test/r/sp-error.result:
Added test for bug #11555 "Stored procedures: current SP tables locking make
impossible view security".
mysql-test/r/view.result:
We should not expose tables which are expicitly/implicitly used in view in
check table statement.
mysql-test/t/sp-error.test:
Added test for bug #11555 "Stored procedures: current SP tables locking make
impossible view security".
mysql-test/t/view.test:
Removed comment obsoleted by bugfix.
sql/sp.cc:
We should not expose names of tables which are explicitly or implicitly
(via routine or trigger) used by view even if we find that they are missing.
So during building of list of prelocked tables for statement we track which
routines (and therefore tables for these routines) are used from views. We
mark elements of LEX::routines set which correspond to routines used in views
by setting Sroutine_hash_entry::belong_to_view member to point to TABLE_LIST
object for topmost view which uses routine. We propagate this mark to all
routines which are used by this routine and which we add to this set. We also
mark tables used by such routine which we add to the list of tables for
prelocking as belonging to this view.
sql/sp.h:
sp_cache_routines_and_add_tables_for_view()/for_triggers():
To be able to determine correctly uppermost view which uses this view/table
with trigger we have to pass pointer to TABLE_LIST object instead of pointer
to view's LEX or to Table_triggers_list object.
sql/sp_head.cc:
sp_head::add_used_tables_to_table_list():
Added new argument which allows to mark tables which are added to table
list for prelocking as belonging to view (this allows properly hide names
of tables which are used in routines used by views).
sql/sp_head.h:
sp_head::add_used_tables_to_table_list():
Added new argument which allows to mark tables which are added to table
list for prelocking as belonging to view (this allows properly hide names
of tables which are used in routines used by views).
sql/sql_base.cc:
open_tables():
sp_cache_routines_and_add_tables_for_view()/for_triggers() now accept
pointer to table list element as last argument, this allows them to determine
correctly uppermost view which uses this view/table with trigger.
sql/sql_trigger.h:
Table_triggers_list:
sp_cache_routines_and_add_tables_for_triggers() now accept pointer to table
list element as last argument, this allows to determine correctly uppermost
view which uses this table with trigger.
into sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0
mysql-test/r/sp-error.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/t/sp-error.test:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
mysql-test/r/sp.result:
merge
sql/share/errmsg.txt:
merge
client/mysqltest.c:
An expected error messages hiding from the log if disable_result_log is in force.
mysql-test/r/sp-dynamic.result:
The test expanded for case of allowed/disalowed recursion.
mysql-test/r/sp-error.result:
Error messages changed.
Test of bug11394() made with allowed recursion.
mysql-test/r/sp.result:
Tests for recursion.
mysql-test/r/trigger.result:
Check that triggers are not affected by this patch.
mysql-test/r/variables.result:
Test of max_sp_recursion_depth variable.
mysql-test/t/sp-dynamic.test:
The test expanded for case of allowed/disalowed recursion.
mysql-test/t/sp-error.test:
Error messages changed.
Test of bug11394() made with allowed recursion.
mysql-test/t/sp.test:
Tests for recursion.
mysql-test/t/trigger.test:
Check that triggers are not affected by this patch.
mysql-test/t/variables.test:
Test of max_sp_recursion_depth variable.
sql/item_func.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
sql/mysqld.cc:
max_sp_recursion_depth variable added.
sql/set_var.cc:
max_sp_recursion_depth variable added.
sql/share/errmsg.txt:
An error message changed.
An error message added.
sql/sp.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
Temory LEX is allocated on a stack, not on a heap.
Recursion support added for stored procedures.
sql/sp.h:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
sql/sp_head.cc:
Initialization of new sp_head fields to get correct list of instances
contained one instance only.
Stack requirement for SP instruction is increased.
Stack free space is checked before mem root initialisation to avoid
memory leak.
Pointer to the free instance management added before and after
SP execution.
sql/sp_head.h:
New sp_head variables added to support inst of instances of SP
for recursion and pointer on ths first free to use instance.
sql/sql_base.cc:
open_table() consume a lot of stack space so we check free stack space before it.
sql/sql_class.h:
max_sp_recursion_depth variable added.
sql/sql_parse.cc:
sp_find_function() and sp_find_procedure() joined to sp_find_routine()
function as it was mentioned in TODO.
into mysql.com:/usr/home/pem/show-sp-code/mysql-5.0
sql/sp_head.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/sp_head.cc:
Merge fixes (STRING_WITH_LEN in string append calls).
Since long, the compiled code of stored routines has been printed in the trace file
when starting mysqld with the "--debug" flag. (At creation time only, and only in
debug builds of course.) This has been helpful when debugging stored procedure
execution, but it's a bit awkward to use. Also, the printing of some of the
instructions is a bit terse, in particular for sp_instr_stmt where only the command
code was printed.
This improves the printout of several of the instructions, and adds the debugging-
only commands "show procedure code <name>" and "show function code <name>".
(In non-debug builds they are not available.)
sql/lex.h:
New symbol for debug-only command (e.g. show procedure code).
sql/sp_head.cc:
Fixed some minor debug-mode bugs in show_create_*().
New method for debugging: sp_head::show_routine_code() - returns the "assembly code"
for a stored routine as a result set.
Improved the print() methods for many sp_instr* classes, particularly for
sp_instr_stmt where the query string is printed as well (up to a max length, just
to give a hint of which statement it is). Also print the names of variables and
cursors in some instruction.
sql/sp_head.h:
New debugging-only method in sp_head: show_routine_code().
Added offset member to sp_instr_cpush for improved debug printing.
sql/sp_pcontext.cc:
Moved find_pvar(uint i) method from sp_pcontext.h, and made it work for all
frames, not just the first one. (For debugging purposes)
Added a similar find_cursor(uint i, ...) method, for debugging.
sql/sp_pcontext.h:
Moved find_pvar(uint i) method to sp_pcontext.cc.
Added a similar find_cursor(uint i, ...) method, for debugging.
sql/sql_lex.h:
Added new sql_command codes for debugging.
sql/sql_parse.cc:
Added new commands for debugging, e.g. "show procedure code".
sql/sql_yacc.yy:
Added new commands for debugging purposes:
"show procedure code ..." and "show function code ...".
These are only enabled in debug builds, otherwise they result in a syntax error.
(I.e. they don't exist)
The crash mentioned in original bug report is already prevented by one
of previous patches (fix for bug #13343 "CREATE|etc TRIGGER|VIEW|USER
don't commit the transaction (inconsistency)"), this patch only improve
error returning.
mysql-test/r/sp-error.result:
Test that statements which implicitly commit transaction
mysql-test/t/sp-error.test:
Test that statements which implicitly commit transaction
sql/sp_head.cc:
We set the new flag about commit/rollback statements presence
sql/sp_head.h:
The new flag about commit/rollback presence added
A comment fixed
sql/sql_yacc.yy:
Removed commit/rollback-statement-present errors spread by this file, only one check left which check flags of a SP
checks on trigger activation)
mysql-test/r/information_schema.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/mysqldump.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/rpl_ddl.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/rpl_sp.result:
Update result file: a new clause DEFINER has been added to
CREATE TRIGGER statement.
mysql-test/r/rpl_trigger.result:
Results for new test cases were added.
mysql-test/r/skip_grants.result:
Error message has been changed.
mysql-test/r/trigger.result:
Added DEFINER column.
mysql-test/r/view.result:
Error messages have been changed.
mysql-test/r/view_grant.result:
Error messages have been changed.
mysql-test/t/mysqldump.test:
Drop created procedure to not affect further tests.
mysql-test/t/rpl_trigger.test:
Add tests for new column in information schema.
mysql-test/t/skip_grants.test:
Error tag has been renamed.
mysql-test/t/view.test:
Error tag has been renamed.
mysql-test/t/view_grant.test:
Error tag has been changed.
sql/item_func.cc:
Fix typo in comments.
sql/mysql_priv.h:
A try to minimize copy&paste:
- introduce operations to be used from sql_yacc.yy;
- introduce an operation to be used from trigger and
view processing code.
sql/share/errmsg.txt:
- Rename ER_NO_VIEW_USER to ER_MALFORMED_DEFINER in order to
be shared for view and trigger implementations;
- Fix a typo;
- Add a new error code for trigger warning.
sql/sp.cc:
set_info() was split into set_info() and set_definer().
sql/sp_head.cc:
set_info() was split into set_info() and set_definer().
sql/sp_head.h:
set_info() was split into set_info() and set_definer().
sql/sql_acl.cc:
Add a new check: exit from the cycle if the table is NULL.
sql/sql_lex.h:
- Rename create_view_definer to definer, since it is used for views
and triggers;
- Change st_lex_user to LEX_USER, since st_lex_user is a structure.
So, formally, it should be "struct st_lex_user", which is longer
than just LEX_USER;
- Add trigger_definition_begin.
sql/sql_parse.cc:
- Add a new check: exit from the cycle if the table is NULL;
- Implement definer-related functions.
sql/sql_show.cc:
Add DEFINER column.
sql/sql_trigger.cc:
Add DEFINER support for triggers.
sql/sql_trigger.h:
Add DEFINER support for triggers.
sql/sql_view.cc:
Rename create_view_definer to definer.
sql/sql_yacc.yy:
Add support for DEFINER-clause in CREATE TRIGGER statement.
Since CREATE TRIGGER and CREATE VIEW can be similar at the start,
yacc is unable to distinguish between them. So, had to modify both
statements in order to make it parsable by yacc.
mysql-test/r/trigger-compat.result:
Result file for triggers backward compatibility test.
mysql-test/r/trigger-grant.result:
Result file of the test for WL#2818.
mysql-test/t/trigger-compat.test:
Triggers backward compatibility test: check that the server
still can load triggers w/o definer attribute and modify
tables with such triggers (add a new trigger, etc).
mysql-test/t/trigger-grant.test:
Test for WL#2818 -- check that DEFINER support in triggers
works properly
The problem was to continue at the right place in the code after the
test expression in a flow control statement fails with an exception
(internally, the test in sp_instr_jump_if_not), and the exception is
caught by a continue handler. Execution must then be resumed after the
the entire flow control statement (END IF, END WHILE, etc).
mysql-test/r/sp.result:
New test case for BUG#14498.
mysql-test/t/sp.test:
New test case for BUG#14498.
(Note that one call is disabled at the moment. Depends on BUG#14643.)
sql/sp_head.cc:
Added a continuation destination for sp_instr_jump_if_not, for the case when
an error in the test expression causes a continue handler to catch.
This includes new members in sp_instr_jump_if_not, adjustment of the optmizer
(mark and move methods), and separate backpatching code (since we can't use
the normal one for this).
Also removed the class sp_instr_jump, since it's never used.
...and added some comments to the optimizer.
sql/sp_head.h:
Added a continuation destination for sp_instr_jump_if_not, for the case when
an error in the test expression causes a continue handler to catch.
This includes new members in sp_instr_jump_if_not, adjustment of the optmizer
(mark and move methods), and separate backpatching code (since we can't use
the normal one for this).
Also removed the class sp_instr_jump, since it's never used.
sql/sql_yacc.yy:
Added backpatching of the continue destination for all conditional statements
(using sp_instr_jump_if_not).
into mysql.com:/opt/local/work/mysql-5.0-root
BitKeeper/etc/ignore:
auto-union
include/my_sys.h:
Auto merged
mysql-test/r/information_schema.result:
Auto merged
mysql-test/t/ctype_ujis.test:
Auto merged
sql/ha_federated.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/table.cc:
Auto merged
cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
include/my_sys.h:
- declaration for multi_alloc_root
libmysqld/Makefile.am:
- drop protocol_cursor.cc, add sql_cursor.cc (replaces the old
implementation of cursors with a new one)
mysql-test/r/ctype_ujis.result:
- test results fixed (a test case for Bug#6513)
mysql-test/r/sp-big.result:
- test results fixed (a test case for Bug#9819)
mysql-test/t/ctype_ujis.test:
Add a test case for Bug#6513 "Test Suite: Values inserted by using cursor is
interpreted latin1 character"
mysql-test/t/sp-big.test:
Add a restricted test case for Bug#9819 "Cursors: Mysql Server Crash
while fetching from table with 5 million records."
mysys/my_alloc.c:
- an implementation of multi_alloc_root; this is largely a copy-paste
from mulalloc.c, but the function is small and there is no easy way
to reuse the existing C function.
sql/Makefile.am:
- add sql_cursor.h, sql_cursor.cc (a new implementation of stored procedure
cursors) and drop protocol_cursor.cc (the old one)
sql/handler.cc:
- now TABLE object has its mem_root always initialized.
Adjust the implementation handler::ha_open
sql/item_subselect.cc:
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/protocol.h:
- drop Protocol_cursor
sql/sp_head.cc:
- move juggling with Query_arena::free_list and Item::next to
sp_eval_func_item, as this is needed in 3 places already.
sql/sp_head.h:
- declare a no-op implementation for cleanup_stmt in sp_instr_cpush.
This method is needed for non-materializing cursors, which are yet not
used in stored procedures.
- declaration for sp_eval_func_item
sql/sp_rcontext.cc:
- reimplement sp_cursor using the new implementation of server side cursors.
- use sp_eval_func_item to assign values of SP variables from the
row fetched from a cursor. This should fix a possible memory leak in
the old implementation of sp_cursor::fetch
sql/sp_rcontext.h:
- reimplement sp_cursor using the new implementation of server side cursors.
sql/sql_class.cc:
- disable the functionality that closes transient cursors at commit/rollback;
transient cursors are not used in 5.0, instead we use materialized ones.
To be enabled in a later version.
sql/sql_class.h:
- adjust to the rename Cursor -> Server_side_cursor
- additional declarations of select_union used in materialized cursors
sql/sql_derived.cc:
- reuse bits of tmp table code in UNION, derived tables, and materialized
cursors
- cleanup comments
sql/sql_lex.h:
- declarations of auxiliary methods used by materialized cursors
- a cleanup in st_select_lex_unit interface
sql/sql_list.h:
- add an array operator new[] to class Sql_alloc
sql/sql_prepare.cc:
- split the tight coupling of cursors and prepared statements to reuse
the same implementation in stored procedures
- cleanups of error processing in Prepared_statement::{prepare,execute}
sql/sql_select.cc:
- move the implementation of sensitive (non-materializing) cursors to
sql_cursor.cc
- make temporary tables self-contained: the table, its record and fields
are allocated in TABLE::mem_root. This implementation is not clean
and resets thd->mem_root several times because of the way create_tmp_table
works (many additional things are done inside it).
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/sql_select.h:
- move the declaration of sensitive (non-materializing) cursors to
sql_cursor.cc
sql/sql_union.cc:
- move pieces of st_select_unit::prepare to select_union and st_table
methods to be able to reuse code in the implementation of materialized
cursors
sql/sql_view.cc:
- adjust to the changed signature of st_select_lex_unit::prepare
sql/table.cc:
- implement auxiliary st_table methods for use with temporary tables
sql/table.h:
- add declarations for auxiliary methods of st_table used to work with
temporary tables
tests/mysql_client_test.c:
- if cursors are materialized, a parallel update of the table used
in the cursor may go through: update the test.
sql/sql_cursor.cc:
New BitKeeper file ``sql/sql_cursor.cc'' -- implementation of server side
cursors
sql/sql_cursor.h:
New BitKeeper file ``sql/sql_cursor.h'' - declarations for
server side cursors.
Part 2 postreview fixes.
sql/ha_innodb.cc:
Renamed structure st_security_context to class Security_context
sql/item_func.cc:
Renamed structure st_security_context to class Security_context
sql/item_strfunc.cc:
fixed USER() function
sql/log.cc:
variable used to optimize access to security context
sql/mysql_priv.h:
Renamed structure st_security_context to class Security_context
sql/mysqld.cc:
main security context used direcly
sql/sp_head.cc:
Renamed structure st_security_context to class Security_context
removed unneed variable
sql/sp_head.h:
Comment inmroved
Renamed structure st_security_context to class Security_context
sql/sql_acl.cc:
Renamed structure st_security_context to class Security_context
fixed function comment and return value
variable used to optimize access to security context
Renamed method of Security_ontext
sql/sql_acl.h:
fixed return value type
sql/sql_class.cc:
Renamed structure st_security_context to class Security_context
sql/sql_class.h:
Renamed structure st_security_context to class Security_context
Method renamed
sql/sql_db.cc:
Renamed structure st_security_context to class Security_context
fixed layout
sql/sql_parse.cc:
registration of wanted access for underlying tables
sql/sql_show.cc:
Renamed structure st_security_context to class Security_context
fixed layout
sql/sql_yacc.yy:
Renamed structure st_security_context to class Security_context
mysql-test/r/sp.result:
Added missing drop table.
mysql-test/t/sp.test:
Added missing drop table.
sql/sp_head.h:
Post-review fix for autocommit check in SPs and triggers.
sql/sql_yacc.yy:
Post-review fix for autocommit check in SPs and triggers.
Second version after review. Allow 'set autocommit' in procedures, but not
functions or triggers. Can return error in run-time (when a function calls
a procedure).
mysql-test/r/sp-error.result:
New test case for BUG#12712.
mysql-test/t/sp-error.test:
New test case for BUG#12712.
sql/set_var.cc:
Made sys_autocommit external, to allow testing in sql_yacc.yy.
sql/set_var.h:
Made sys_autocommit external, to allow testing in sql_yacc.yy.
sql/share/errmsg.txt:
New error message for disallowing the setting of autocommit in stored functions and triggers.
sql/sp_head.h:
New flag: has 'set autocommit', and testing for this in is_not_allowed_in_function().
sql/sql_yacc.yy:
Disallow setting AUTOCOMMIT in stored function and triggers.
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make (grep for StoredRoutinesBinlogging for details)
mysql-test/r/rpl_sp_effects.result:
Testcase for BUG#12637
mysql-test/r/sp.result:
re-enabled test case for BUG#12297
mysql-test/t/rpl_sp_effects.test:
Testcase for BUG#12637
mysql-test/t/sp.test:
re-enabled test case for BUG#12297
sql/item_func.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/log.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/sp_head.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/sp_head.h:
Remove compiler warning.
sql/sql_class.h:
Fix for BUG#12637: Make SPs+user variables replication work.
sql/sql_parse.cc:
Fix for BUG#12637: Make SPs+user variables replication work.
The idea of the patch is to separate statement processing logic,
such as parsing, validation of the parsed tree, execution and cleanup,
from global query processing logic, such as logging, resetting
priorities of a thread, resetting stored procedure cache, resetting
thread count of errors and warnings.
This makes PREPARE and EXECUTE behave similarly to the rest of SQL
statements and allows their use in stored procedures.
This patch contains a change in behaviour:
until recently for each SQL prepared statement command, 2 queries
were written to the general log, e.g.
[Query] prepare stmt from @stmt_text;
[Prepare] select * from t1 <-- contents of @stmt_text
The chagne was necessary to prevent [Prepare] commands from being written
to the general log when executing a stored procedure with Dynamic SQL.
We should consider whether the old behavior is preferrable and probably
restore it.
This patch refixes Bug#7115, Bug#10975 (partially), Bug#10605 (various bugs
in Dynamic SQL reported before it was disabled).
mysql-test/r/not_embedded_server.result:
Since we don't want to log Dynamic SQL in stored procedures,
now the general log gets only one log entry per SQL statement.
mysql-test/r/sp-error.result:
- remove obsolete tests
- a better error message for the case when a stored procedure that
returns a result set is called from a function
mysql-test/r/trigger.result:
- a better error message for the case when a stored procedure that
returns a result set is called from a trigger
mysql-test/t/sp-error.test:
- a better error message for the case when a stored procedure that
returns a result set is called from a function.
- move the comment to its place (end of file).
mysql-test/t/trigger.test:
- a better error message for the case when a stored procedure that
returns a result set is called from a trigger
sql/item_func.cc:
- we need to pass sql_command explicitly to get_var_with_binlog, because
when creating a query for SQL prepared statement thd->lex->sql_command
points at SQLCOM_EXECUTE, which is not listed in the list of update
queries.
sql/log_event.h:
- remove an extra copy of the previous sentence
sql/mysql_priv.h:
- fix declarations of sql_prepare.cc API
sql/share/errmsg.txt:
- a new error message, when one attempts to execute a prepared statement
which is currently being executed (this can happen only in Dynamic SQL
at the moment).
sql/sp_head.cc:
- extend sp_multi_results_command to return different flags for a
command (and rename it)
- add support for SQLCOM_PREPARE,SQLCOM_EXECUTE, SQLCOM_DEALLOCATE
to sp_get_flags_for_command
- replace multiple boolean sp_head members with uint m_flags
- a fix for a crash when user variables are used in a stored procedure
and binlog is on. A temporary fix for Bug#12637 "SP crashes the server
if it has update query with user var & binlog is enabled", which actually
stands for stored functions: now instead of a crash we break
replication if a user variable is used in a stored function which
is executed in prelocked mode.
sql/sp_head.h:
- replace multiple boolean flags of sp_head with uint m_flags;
- add flag CONTAINS_DYNAMIC_SQL
- use this flag to error if a stored procedure with Dynamic SQL is
called from a function or trigger.
sql/sql_class.cc:
- Statement_map::insert should not delete a statement if it exists,
now it's done externally to be able to handle the case when the
statement being deleted is in use.
- remove extra code (free_list is already reset in free_items)
sql/sql_lex.cc:
- add lex->stmt_prepare_mode; we can't rely on thd->command any more,
because we don't reset it any more (Dynamic SQL requirement is that
PS are as little intrusive as possible).
sql/sql_lex.h:
- declare bool LEX::stmt_prepare_mode
sql/sql_parse.cc:
- move prepared statement code to sql_prepare.cc
- change declarations (refactored code)
- better error message when one attempts to use Dynamic SQL or a
stored procedure that returns a result set in a function or trigger.
sql/sql_prepare.cc:
- major refactoring to ensure PREPARE/EXECUTE commands do not reset global THD
state and allow their use in stored procedures.
- add Prepared_statement::flags and use it to ensure no recursive execution
of a prepared statement is possible
- better comments
sql/sql_yacc.yy:
- enable PREPARE/EXECUTE/DEALLOCATE in stored procedures
- produce an error message on attempt to use PREPARE/EXECUTE/DEALLOCATE
in a stored function or trigger
mysql-test/r/sp-dynamic.result:
- sp-dynamic.test results
mysql-test/t/sp-dynamic.test:
- a new test for PREPARE/EXECUTE/DEALLOCATE in stored procedures.
"Interleaved SPs execution is now binlogged properly, "SELECT spfunc()" is binlogged too.
The known remaining issue is binlogging/replication of "a routine is deleted while it is executed" scenario.
mysql-test/r/rpl_sp.result:
Fix for BUG#12335: updated test cases/results
mysql-test/t/rpl_sp.test:
Fix for BUG#12335: updated test cases/results
sql/item.cc:
Fix for BUG#12335 (SP replication):
- Added Item_name_const 'function'
- Addede 'delete reuse' to call dtor on item reuse
sql/item.h:
Fix for BUG#12335 (SP replication) : Added Item_name_const 'function' + code cleanup
sql/item_create.cc:
Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/item_create.h:
Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/item_func.cc:
Fix for BUG#12335 (SP replication) : binary log is now constrolled from within execute_function.
sql/lex.h:
Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/log.cc:
Fix for BUG#12335 (SP replication) : Added MYSQL_LOG::{start|stop}_union_events to allow
one to temporary disable binlogging but collect a 'union' information about binlog write
calls.
sql/mysql_priv.h:
Fix for BUG#12335 (SP replication)
sql/sp_head.cc:
Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for
StoredRoutinesBinlogging for details
sql/sp_head.h:
Comments added
sql/sp_pcontext.h:
Comments added
sql/sp_rcontext.h:
Comments added
sql/sql_class.cc:
Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for
StoredRoutinesBinlogging for details
sql/sql_class.h:
Fix for BUG#12335 (SP replication) : Added MYSQL_LOG::{start|stop}_union_events to allow
one to temporary disable binlogging but collect a 'union' information about binlog write
calls.
sql/sql_delete.cc:
Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_insert.cc:
Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_lex.cc:
Fix for BUG#12335 (SP replication): Add ability to extract previous returned token from
the tokenizer.
sql/sql_lex.h:
Fix for BUG#12335 (SP replication): Add ability to extract previous returned token from
the tokenizer.
sql/sql_parse.cc:
Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for
StoredRoutinesBinlogging for details
sql/sql_update.cc:
Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_yacc.yy:
Fix for BUG#12335 (SP replication) : When creating Item_splocal, remember where it is located
in the query.
NOT FOUND ...' in conditional handled incorrectly".
Whenever we remove an instruction during optimization, we need to
adjust instruction numbers (ip - instruction pointer) stored in all
instructions. In addition to that, sp_instr_hpush_jump, which
corresponds to DECLARE CONTINUE HANDLER needs adjustment for m_handler,
which holds the number of instruction with the continue handler.
In the bug report, a wrong ip stored in m_handler was pointing at
FETCH, which resulted in an error message and abnormal SP termination.
The fix is to just remove m_handler member from sp_instr_hpush_jump,
as it's always points to the instruction next to the DECLARE
statement itself (m_ip+1).
mysql-test/r/sp.result:
Test results fixed (Bug#12168)
mysql-test/t/sp.test:
A test case for Bug#12168 "'DECLARE CONTINUE HANDLER FOR NOT
FOUND ...' in conditional handled incorrectly"
sql/sp_head.cc:
Remove m_handler (the number of continue handler instruction)
as it always equal to m_ip+1
sql/sp_head.h:
Remove m_handler (the number of continue handler instruction)
as it always equal to m_ip+1
mysql-test/r/gis.result:
test result fixed
mysql-test/t/gis.test:
test case
sql/sp_head.cc:
m_geom_returns is sent to make_field
sql/sp_head.h:
m_geom_returns declared
sql/sql_yacc.yy:
m_geom_returns initializing added
mysql-test/r/sp.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_trigger.h:
Auto merged
its body, but lets each statement to get/release its own locks. This allows a broader set
of statements to be executed inside PROCEDUREs (but breaks replication)
This patch should fix BUG#8072, BUG#8766, BUG#9563, BUG#11126
mysql-test/r/sp-security.result:
Drop tables this test attempts to create
mysql-test/r/sp-threads.result:
Update test results
mysql-test/r/sp.result:
Disabled a test that triggers BUG#11986, cleanup used tables when tests start.
mysql-test/r/view.result:
Enabled a test case that now works with prelocking-free SPs
mysql-test/t/sp-security.test:
Drop tables this test attempts to create
mysql-test/t/sp.test:
Disabled a test that triggers BUG#11986, cleanup used tables when tests start.
mysql-test/t/view.test:
Enabled a test case that now works with prelocking-free SPs
sql/handler.cc:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt
sql/item_func.cc:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt
sql/sp.cc:
Non-prelocked SP execution: Added support for skipping prelocking of procedure body for
"CALL proc(...)" statements.
sql/sp.h:
Non-prelocked SP execution: Added support for skipping prelocking of procedure body for
"CALL proc(...)" statements.
sql/sp_cache.h:
Added comments
sql/sp_head.cc:
Non-prelocked SP execution:
* Try to unlock tables after PROCEDURE arguments have been evaluated.
* Make sp_lex_keeper be able to execute in 2 modes: A) when already in prelocked mode
B) when its statement enters/leaves prelocked mode itself.
sql/sp_head.h:
Non-prelocked SP execution: Make sp_lex_keeper to additionally keep list of tables it
needs to prelock when its statement enters/leaves prelocked mode on its own.
sql/sql_base.cc:
Non-prelocked SP execution: Make open_tables() to
* detect 'CALL proc(...)' and not to do prelocking for procedure body statements.
* Make lex->query_tables_last to point precisely to a boundary in lex->query_tables
list where 'own' tables and views' tables end and added-for-prelocking tables begin.
(it was not true before - view's tables could end up after query_tables_own_last)
sql/sql_class.cc:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt
sql/sql_class.h:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt
sql/sql_lex.cc:
Non-prelocked SP execution: More rigourous cleanup in st_lex::cleanup_after_one_table_open()
sql/sql_parse.cc:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt, remove outdated comments
sql/sql_trigger.h:
Rename: thd->transaction.in_sub_stmt -> thd->in_sub_stmt
other sql_mode fixes
mysql-test/r/information_schema.result:
changes in information schema
mysql-test/r/trigger.result:
storing and restoring sql modes for triggers
mysql-test/t/trigger.test:
storing and restoring parsing modes for triggers
sql/mysqld.cc:
add length of mode names
sql/parse_file.cc:
new type of list (ulonglong)
sql/parse_file.h:
new type of list (ulonglong)
sql/set_var.cc:
mode output made as static method
sql/set_var.h:
mode output made as static method
sql/sp_head.cc:
added sql_mode storing/restoring during SP execution
optimised sql_mode printing
sql/sp_head.h:
comment fixed according this changes
sql/sql_show.cc:
added sql_mode field
sql/sql_trigger.cc:
store/restore sql_mode which was in force during ctrigger creation
sql/sql_trigger.h:
store/restore sql_mode which was in force during ctrigger creation
sql/sql_view.cc:
fixed sql_mode
into mysql.com:/home/dlenev/src/mysql-5.0-bg8406
mysql-test/r/sp.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
mysql-test/r/sp-error.result:
Manual merge.
mysql-test/t/sp-error.test:
Manual merge.
sql/sp_head.cc:
Manual merge.
sql/sql_yacc.yy:
Manual merge.
crash if referencing a table" and several other related bugs.
Fix for bug #11834 "Re-execution of prepared statement with dropped function
crashes server." which was spotted during work on previous bugs.
Also couple of nice cleanups:
- Replaced two separate hashes for stored routines used by statement with one.
- Now instead of doing one pass through all routines used in statement for
caching them and then doing another pass for adding their tables to table
list, we do only one pass during which do both things.
mysql-test/r/sp-error.result:
Added test for bug #11834 "Re-execution of prepared statement with dropped
function crashes server" also covering handling of prepared statements
which use stored functions but does not require prelocking.
mysql-test/r/sp.result:
Updated test for LOCK TABLES with views in table list.
(Old version of statement used in this test will work ok now, since prelocking
algorithm was tuned and will lock only one multi-set of tables for each routine
even if this routine is used in several different views).
mysql-test/r/trigger.result:
Added several tests for triggers using tables.
mysql-test/t/sp-error.test:
Added test for bug #11834 "Re-execution of prepared statement with dropped
function crashes server" also covering handling of prepared statements
which use stored functions but does not require prelocking.
mysql-test/t/sp.test:
Updated comment about recursive views to reflect current situation.
Updated test for LOCK TABLES with views in table list.
(Old version of statement used in this test will work ok now, since prelocking
algorithm was tuned and will lock only one multi-set of tables for each routine
even if this routine is used in several different views).
mysql-test/t/trigger.test:
Added several tests for triggers using tables.
sql/item_func.cc:
Item_func_sp::cleanup():
By next statement execution stored function can be dropped or altered so
we can't assume that sp_head object for it will be still valid.
sql/sp.cc:
- Added Sroutine_hash_entry structure that represents element in the set of
stored routines used by statement or routine. We can't as before use
LEX_STRING for this purprose because we want link all elements of this set
in list.
- Replaced sp_add_to_hash() with sp_add_used_routine() which takes into account
that now we use one hash for stored routines used by statement instead of two
and which mantains list linking all elelemnts in this hash.
- Renamed sp_merge_hash() to sp_update_sp_used_routines().
- Introduced sp_update_stmt_used_routines() for adding elements to the set of
routines used by statement from another similar set for statement or routine.
This function will also mantain list linking elements of destination set.
- Now instead of one sp_cache_routines() function we have family of
sp_cache_routines_and_add_tables() functions which are also responsible for
adding tables used by routines being cached to statement table list. Nice
optimization - thanks to list linking all elements in the hash of routines
used by statement we don't need to perform several iterations over this hash
(as it was before in cases when we have added new elements to it).
sql/sp.h:
Added declarations of functions used for manipulations with set (hash) of stored
routines used by statement.
sql/sp_head.cc:
sp_name::init_qname():
Now sp_name also holds key identifying routine in the set (hash) of
stored routines used by statement.
sp_head:
Instead of two separate hashes sp_funs/m_spprocs representing sets of stored
routines used by this routine we use one hash - m_sroutines.
sp_instr_set_trigger_field:
Added support for subqueries in assignments to row accessors in triggers.
Removed definition of sp_add_sp_tables_to_table_list() and auxilary functions
since now we don't have separate stage on which we add tables used by routines
used by statement to table list for prelocking. We do it on the same stage as
we load those routines in SP cache. So all this functionality moved to
sp_cache_routines_and_add_tables() family of functions.
sql/sp_head.h:
sp_name:
Now this class also holds key identifying routine in the set (hash) of stored
routines used by statement.
sp_head:
Instead of two separate hashes sp_funs/m_spprocs representing sets of stored
routines used by this routine we use one hash - m_sroutines.
sp_instr_set_trigger_field:
Added support for subqueries in assignments to row accessors in triggers.
Removed declaration of sp_add_sp_tables_to_table_list() since now we don't have
separate stage on which we add tables used by routines used by statement to
table list for prelocking. We do it on the same stage as we load those routines
in SP cache.
sql/sql_base.cc:
open_tables():
- LEX::spfuns/spprocs hashes were replaced with one LEX::sroutines hash.
- Now instead of doing one pass through all routines used in statement for
caching them and then doing another pass for adding their tables to table
list, we do only one pass during which do both things. It is easy to do
since all routines in the set of routines used by statement are linked in
the list. This also allows us to calculate table list for prelocking more
precisely.
- Now triggers properly inform prelocking algorithm about tables they use.
sql/sql_lex.cc:
lex_start():
Replaced LEX::spfuns/spprocs with with one LEX::sroutines hash.
Added LEX::sroutines_list list linking all elements in this hash.
st_lex::st_lex():
Moved definition of LEX constructor to sql_lex.cc file to be able
use sp_sroutine_key declaration from sp.h in it.
sql/sql_lex.h:
LEX:
Replaced two separate hashes for stored routines used by statement with one.
Added list linking all elements in this hash to be able to iterate through all
elements and add new elements to this hash at the same time.
Moved constructor definition to sql_lex.cc.
sql/sql_parse.cc:
mysql_execute_command():
Replaced LEX::spfuns/spprocs with one LEX::sroutines hash.
sql/sql_trigger.cc:
Added missing GNU GPL notice.
Table_triggers_list::check_n_load()
Added initialization of sroutines_key which stores key representing
triggers of this table in the set (hash) of routines used by this statement.
sql/sql_trigger.h:
Added missing GNU GPL notice.
Table_triggers_list:
Added sroutines_key member to store key representing triggers of this
table in the set (hash) of routines used by this statement.
Declared sp_cache_routines_and_add_tables_for_triggers() as friend since
it needs access to sroutines_key and trigger bodies.
sql/sql_yacc.yy:
- Now we use sp_add_used_routine() instead of sp_add_to_hash() for adding
elements to the set of stored routines used in statement.
- Enabled support of subqueries as right sides in assignments to triggers' row
accessors.
"Stored procedures: crash with function calling itself".
Disallow recursive stored routines until we either make Item's and LEX
reentrant safe or will use spearate sp_head instances (and thus separate
LEX objects and Item trees) for each routine invocation.
mysql-test/r/sp-error.result:
Added tests for bug #11394 "Recursion in SP crash server" and
bug #11600 "Stored procedures: crash with function calling itself".
(We simply disallow recursion for stored routines).
mysql-test/r/sp.result:
Disabled test cases containing recursive stored routines until we will
support for them.
mysql-test/t/sp-error.test:
Added tests for bug #11394 "Recursion in SP crash server" and
bug #11600 "Stored procedures: crash with function calling itself".
(We simply disallow recursion for stored routines).
mysql-test/t/sp.test:
Disabled test cases containing recursive stored routines until we will
support for them.
sql/share/errmsg.txt:
Added error message saying that recursive stored routines are disallowed.
sql/sp_head.cc:
sp_head::execute():
Since many Item's and LEX members can't be used in reentrant fashion
we have to disable recursion for stored routines. So let us track
routine invocations using sp_head::m_is_invoked member and raise
error when one attempts to call routine recursively.
sql/sp_head.h:
sp_head:
Added m_is_invoked member for tracking of routine invocations and
preventing recursion.
We need every instruction to have its own arena, because we want to
track instruction's state (INITIALIZED_FOR_SP -> EXECUTED). Because of
`if' statements and other conditional instructions used in stored
procedures, not every instruction of a stored procedure gets executed
during the first (or even subsequent) execution of the procedure.
So it's better if we track the execution state of every instruction
independently.
All instructions of a given procedure now also share sp_head's
mem_root, but keep their own free_list.
This simplifies juggling with free Item lists in sp_head::execute.
- free_items() moved to be a member of Query_arena.
- logic of 'backup_arena' debug member of Query_arena has been
changed to support
multi-backups. Until now, TRUE 'backup_arena' meant that there is
exactly one active backup of the THD arena. Now it means simply that
the arena is used for backup, so that we can't accidentally overwrite an
existing backup. This allows doing multiple backups, e.g. in
sp_head::execute and Cursor::fetch, when THD arena is already backed up
but we want to set yet another arena (usually the 'permanent' arena,
to save permanent transformations/optimizations of a parsed tree).
sql/sp_head.cc:
- use Query_arena support in sp_head::execute() as now sp_instr inherites
from it.
sql/sp_head.h:
- inherite sp_instr from Query_arena
sql/sql_class.cc:
- changed the principle of Query_arena::backup_arena; free_items is now
a member of Query_arena.
sql/sql_class.h:
- changed the principle of Query_arena::backup_arena; free_items is now
a member of Query_arena.
sql/sql_prepare.cc:
free_items() is now a member of Query_arena.
sql/sql_select.cc:
free_items() now automatically sets free_list to zero.
main_mem_root is moved out of class Query_arena.
sql/sp_head.cc:
Adjust to the changed Query_arena constructor.
main_mem_root is moved out of class Query_arena.
sql/sp_head.h:
main_mem_root is moved out of class Query_arena: add it to class sp_head.
sql/sql_class.cc:
main_mem_root is moved out of class Query_arena: remove
constructors no longer relevant, remove dead code.
sql/sql_class.h:
main_mem_root is moved out of class Query_arena.
sql/sql_prepare.cc:
It's better to not use main_mem_root anywhere: logically, it's not
a public member (can't fix sp_head::make_field and Item_subselect::exec
to make it protected)
sql/sql_select.cc:
New Cursor constructor, which avoids unneeded memory allocation
when initializign main_mem_root.
sql/sql_select.h:
main_mem_root is moved out of class Query_arena.
into serg.mylan:/usr/home/serg/Abk/mysql-5.0
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/query_cache.result:
testing cursors in SP with QC
testing suspicious but working using selects in function with QC
mysql-test/t/query_cache.test:
testing cursors in SP with QC
testing suspicious but working using selects in function with QC
sql/sp_head.h:
method for prohibiting of QC using SP query
sql/sp_rcontext.cc:
prohibit opening Query cache for SP cursors
sql/sp_rcontext.h:
constructor moved to .cc file to be able to use methods from lex_keeper
