Commit graph

8524 commits

Author SHA1 Message Date
unknown
4c2db1bef1 Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/opt/local/work/mysql-5.0-runtime


mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
sql/item.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
2006-07-01 22:13:42 +04:00
unknown
047e2be28c Post-merge fix 2006-07-01 09:28:41 +04:00
unknown
87d0401593 Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/home/psergey/mysql-5.0-bug16168-merge
2006-07-01 07:04:27 +04:00
unknown
c1fa66c3a9 Merge mysql.com:/home/psergey/mysql-4.1-bug16168-push
into  mysql.com:/home/psergey/mysql-5.0-bug16168-merge


mysql-test/t/range.test:
  Auto merged
mysql-test/r/range.result:
  SCCS merged
sql/opt_range.cc:
  SCCS merged
2006-07-01 01:25:59 +04:00
unknown
9606675ba2 Merge mysql.com:/home/my/mysql-4.1
into  mysql.com:/home/my/mysql-5.0


libmysql/libmysql.c:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/t/key.test:
  Auto merged
sql/table.cc:
  Auto merged
mysql-test/r/key.result:
  Manual merge
mysql-test/t/mysqldump.test:
  Manual merge
  (Now we have same code as in 4.1 and 5.1)
sql/ha_ndbcluster.cc:
  Manual merge
  Change %ll -> llstr()
tests/mysql_client_test.c:
  manual merge
2006-06-30 19:15:18 +03:00
unknown
e0171231a5 Merge bk-internal.mysql.com:/home/bk/mysql-4.1
into  mysql.com:/home/my/mysql-4.1
2006-06-30 19:15:17 +03:00
unknown
66a59b10e9 Reverted wrong bug fix (Bug#11228)
mysql-test/r/key.result:
  Fixed result after removing wrong bug fix
mysql-test/t/key.test:
  Added SHOW CREATE TABLE, which is the proper way to check for table definitions
sql/table.cc:
  Reverted wrong bug fix.
  The intention with the original code was to show that MySQL treats the first
  given unique key as a primary key. Clients can use the marked primary key as a
  real primary key to validate row changes in case of conflicting updates.  The
  ODBC driver (and other drivers) may also use this fact to optimize/check
  updates and handle conflicts.  The marked key also shows what some engines, like InnoDB or NDB,
  will use as it's internal primary key.
  
  For checking if someone has declared a true PRIMARY KEY, one should use 'SHOW CREATE TABLE'
2006-06-30 18:29:27 +03:00
unknown
fc085d77ad Bug#17226: Variable set in cursor on first iteration is assigned
second iterations value

During assignment to the BLOB variable in routine body the value
wasn't copied.


mysql-test/r/sp-vars.result:
  Add result for bug#17226.
mysql-test/t/sp-vars.test:
  Add test case for bug#17226.
sql/field_conv.cc:
  Honor copy_blobs flag.
2006-06-30 18:14:22 +04:00
unknown
633cbfb571 BUG#16168: Wrong results from range optimizer, "Use_count: Wrong count for key ..." warnings:
- Added comments.
 - Make SEL_ARG::clone() set SEL_ARG::elements in the created copy.


mysql-test/r/range.result:
  BUG#16168: Testcase
mysql-test/t/range.test:
  BUG#16168: Testcase
2006-06-30 09:05:12 +04:00
unknown
de1499ea59 Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/home/my/mysql-5.0


mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
2006-06-30 04:28:04 +03:00
unknown
0343a80b02 Merge bk-internal.mysql.com:/home/bk/mysql-4.1
into  mysql.com:/home/my/mysql-4.1
2006-06-30 04:27:19 +03:00
unknown
c5ed64a416 Don't read ~/.my.cnf in mysqldump.test
heap/hp_test1.c:
  Changed type from last commit
mysql-test/mysql-test-run.sh:
  Fixed problem with running with --gdb and two masters
  Don't disable ndb becasue we run gdb
mysql-test/t/mysqldump.test:
  Don't read ~/.my.cnf
sql/ha_ndbcluster.cc:
  Portability fix
2006-06-30 04:10:27 +03:00
unknown
2226065b27 Merge mysql.com:/home/my/mysql-4.1
into  mysql.com:/home/my/mysql-5.0


include/my_global.h:
  Auto merged
mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
mysys/my_handler.c:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
strings/strtod.c:
  Auto merged
mysql-test/r/func_time.result:
  Manual merge
mysql-test/t/func_time.test:
  Manual merge
2006-06-30 02:35:52 +03:00
unknown
3cf92fb7d6 Merge
mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
mysql-test/r/func_time.result:
  SCCS merged
mysql-test/t/func_time.test:
  SCCS merged
2006-06-30 02:03:09 +04:00
unknown
6ea7aafc0a Merge moonbone.local:/home/evgen/bk-trees/mysql-5.0-opt
into moonbone.local:/work/merge-5.0


sql/sql_select.cc:
  Auto merged
strings/ctype-mb.c:
  Auto merged
2006-06-30 02:02:20 +04:00
unknown
52a1639b0e Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-4.1
into moonbone.local:/work/merge-4.1
2006-06-30 01:12:16 +04:00
unknown
9bbfa9fbf1 Merge mysql.com:/home/tomash/src/mysql_ab/mysql-5.0
into  mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug20230
2006-06-30 00:24:47 +04:00
unknown
8368f437a7 Bug#20230: routine_definition is not null
SHOW CREATE PROCEDURE and SHOW CREATE FUNCTION are fixed as well as
INFORMATION_SCHEMA.ROUTINES.ROUTINE_NAME.


mysql-test/r/information_schema.result:
  Add result for bug#20230.
mysql-test/t/information_schema.test:
  Add test case for bug#20230.
sql/sp_head.cc:
  Return NULL for routine definition if the user doesn't have enough
  privilege to see it.
sql/sql_show.cc:
  Make INFORMATION_SCHEMA.ROUTINES.ROUTINE_NAME NULL-able.  Return
  NULL if the user doesn't have enough privilege to see routine
  definition.
2006-06-30 00:21:55 +04:00
unknown
c4cffdbfe9 Merge mysql.com:/opt/local/work/tmp_merge
into  mysql.com:/opt/local/work/mysql-5.0-merge


mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
mysql-test/r/func_time.result:
  Manual merge.
mysql-test/t/func_time.test:
  Manual merge.
2006-06-29 18:34:49 +04:00
unknown
a4e5d04db4 Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/opt/local/work/mysql-5.0-runtime
2006-06-29 18:17:37 +04:00
unknown
702d34bbaf Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/opt/local/work/mysql-5.0-runtime
2006-06-29 16:44:21 +04:00
unknown
f8540ba7df Merge bk-internal.mysql.com:/home/bk/mysql-5.0-runtime
into  mysql.com:/opt/local/work/mysql-5.0-runtime
2006-06-29 16:43:23 +04:00
unknown
32e2acadc3 Merge mysql.com:/users/lthalmann/bkroot/mysql-5.0
into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.0-merge


include/my_sys.h:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/log.cc:
  Auto merged
2006-06-29 14:14:08 +02:00
unknown
6695db7fe8 Merge mysql.com:/opt/local/work/mysql-5.0-release
into  mysql.com:/opt/local/work/mysql-5.0-runtime


mysql-test/r/variables.result:
  Auto merged
mysql-test/r/information_schema.result:
  Manual merge.
2006-06-29 15:25:03 +04:00
unknown
8c435bdf7d Replace all numeric error code with symbolic names in trigger.test.
mysql-test/t/trigger.test:
  Replace all numeric error code with symbolic names.
  Left are --error 1 for system error, and --error 1100.  The
  symbolic constant for the latter is ER_TABLE_NOT_LOCKED, but using
  it triggers a bug in test driver due to name prefix collision with
  1099 ER_TABLE_NOT_LOCKED_FOR_WRITE.  This bug is fixed in 5.1.
2006-06-29 13:45:43 +04:00
unknown
9ee8e42d1c Fix test files to work with non-standard ports (MTR_BUILD_THREAD).
mysql-test/t/federated.test:
  Use --replace_result to make test work on non-standard ports.
mysql-test/r/federated.result:
  Use --replace_result to make test work on non-standard ports.
2006-06-29 10:35:16 +02:00
unknown
48d1dc7417 Merge mysql.com:/home/tomash/src/mysql_ab/mysql-5.0
into  mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug10946


mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/sql_trigger.cc:
  Auto merged
2006-06-28 23:54:18 +04:00
unknown
837c9719c4 Bug#10946: Confusing error messeges in the case of duplicate trigger definition
It was hard to distinguish case, when one was unable to create trigger
on the table because trigger with same action time and event already
existed for this table, from the case, when one tried to create trigger
with name which was already occupied by some other trigger, since in
both these cases we emitted ER_TRG_ALREADY_EXISTS error and message.
Now we emit ER_NOT_SUPPORTED_YET error with appropriate additional
message in the first case. There is no sense in introducing separate
error for this situation since we plan to get rid of this limitation
eventually.


mysql-test/r/trigger.result:
  Update result for new error message.
mysql-test/t/trigger.test:
  Update test for new error code.
sql/sql_trigger.cc:
  If there is already a trigger with the same activation time, report an
  "Unsupported yet" error.
2006-06-28 23:50:50 +04:00
unknown
9016a6be20 BUG #19773
Pushbuild fixes to result file, test, and header file for federated.


mysql-test/r/federated.result:
  BUG #19773
  
  Pushbuild fixes - result file had hard-coded port
mysql-test/t/federated.test:
  BUG #19773
  
  Pushbuild fixes Test was missing --replace_result
sql/ha_federated.h:
  BUG #19773
  
  HPUX and Windows failed with variable named row and *row in method declaration
2006-06-28 12:18:21 -07:00
unknown
d127fa3b51 Merge bk-internal:/home/bk/mysql-5.0-runtime
into  mysql.com:/home/jimw/my/mysql-5.0-18005


sql/sql_trigger.cc:
  Auto merged
2006-06-28 10:55:27 -07:00
unknown
7f9a6aa9c0 Merge pgalbraith@bk-internal.mysql.com:/home/bk/mysql-5.0
into  govinda.patg.net:/home/patg/mysql-build/mysql-5.0-engines-bug19773


sql/ha_federated.cc:
  Auto merged
2006-06-28 10:11:43 -07:00
unknown
11d38c1d44 Merge mysql.com:/users/lthalmann/bkroot/mysql-5.0-rpl
into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.0-merge


sql/ha_ndbcluster.cc:
  Auto merged
2006-06-28 16:18:57 +02:00
unknown
1fdccc8903 Disabled test case for Windows (BUG#20753) 2006-06-28 15:07:41 +02:00
unknown
2f45384bf1 Merge tnurnberg@bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/home/tnurnberg/mysql-5.0
2006-06-28 13:37:13 +02:00
unknown
03ce43128d Merge mysql.com:/home/tnurnberg/work/mysql-5.0-maint-19857
into  mysql.com:/home/tnurnberg/mysql-5.0
2006-06-28 12:43:04 +02:00
unknown
5312b34910 Bug#19857: When a user with CREATE ROUTINE priv creates a routine it results in NULL p/w
sp_grant_privileges(), the function that GRANTs EXECUTE + ALTER privs on a SP,
did so creating a user-entry with not password; mysql_routine_grant() would then
write that "change" to the user-table.


mysql-test/r/sp-security.result:
  prove that creating a stored procedure will not destroy the creator's password
mysql-test/t/sp-security.test:
  prove that creating a stored procedure will not destroy the creator's password
sql/sql_acl.cc:
  get password from ACLs, convert to correct format, and use it when
  forcing GRANTS for SPs
2006-06-28 12:40:17 +02:00
unknown
b5f89708eb Merge sgluhov@bk-internal.mysql.com:/home/bk/mysql-5.0
into mysql.com:/home/gluh/MySQL/Merge/5.0-kt


sql/set_var.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
2006-06-28 14:23:33 +05:00
unknown
2ee3ef2edc BUG #19773
Final-review fixes per Monty, pre-push. OK'd for 
push. Please see each file's comments.



mysql-test/r/federated.result:
  BUG #19773
      
  Results for multi-table deletes, updates
mysql-test/t/federated.test:
  BUG #19773
      
  Test multi table update and delete. Added drop table to end of previous test.
sql/ha_federated.cc:
  BUG #19773 
      
  Post-review changes, per Monty. 3rd patch, OK'd for push.
  - Added index_read_idx_with_result_set, which uses the result set passed to it
  - Hash by entire connection scheme
  - Protected store_result result set for table scan by adding a method result set
    to index_read_idx and index_read which is passed to index_read_with_result, which
    in turn iterates over the single record via read_next.
    This is a change from having two result sets in the first two patches. 
    This keeps the code clean and avoids the need for yet another result set.
  - Rewrote ::position and ::rnd_pos to store position - if primary key use 
    primary key, if not, use record buffer.
  - Rewrote get_share to store hash with connect string vs. table name
  - delete_row added subtration of "records" by affected->rows
  - Added read_next to handle what rnd_next used to do (converting raw record
     to query and vice versa)
  - Removed many DBUG_PRINT lines
  - Removed memset initialisation since subsequent loop accomplishes
  - Removed un-necessary mysql_free_result lines
sql/ha_federated.h:
   BUG #19773
      
      Fixed "SET " to " SET " to make sure built statements are built with 
      "UPDATE `t1` SET .." instead of "UPDATE `t1`SET"
2006-06-27 23:49:48 -07:00
unknown
88afd72b47 Bug #18005: Creating a trigger on mysql.event leads to server crash on scheduler startup
Bug #18361: Triggers on mysql.user table cause server crash

 Because they do not work, we do not allow creating triggers on tables
 within the 'mysql' schema.

 (They may be made to work and re-enabled at some later date, but not
 in 5.0 or 5.1.)


mysql-test/r/trigger.result:
  Add new results
mysql-test/t/trigger.test:
  Add new regression test for creating triggers on system schema
sql/share/errmsg.txt:
  Add new error message
sql/sql_trigger.cc:
  Disallow creating triggers on tables in the 'mysql' schema
2006-06-27 17:16:02 -07:00
unknown
90cb4c03fd Bug#17203: "sql_no_cache sql_cache" in views created from prepared statement
The problem was that we restored SQL_CACHE, SQL_NO_CACHE flags in SELECT
statement from internal structures based on value set later at runtime, not
the original value set by the user.

The solution is to remember that original value.


mysql-test/r/auto_increment.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_compress.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_math.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_system.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_time.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/information_schema.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/query_cache.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/rpl_get_lock.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/rpl_master_pos_wait.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/show_check.result:
  Add result for bug#17203.
mysql-test/r/subselect.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/type_blob.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/variables.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/view.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/t/show_check.test:
  Add test case for bug#17203.
sql/sql_lex.cc:
  Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
sql/sql_lex.h:
  Add SELECT_LEX::sql_cache field to store original user setting.
sql/sql_select.cc:
  Output SQL_CACHE and SQL_NO_CACHE depending on stored original user setting.
sql/sql_yacc.yy:
  Make effect of SQL_CACHE and SQL_NO_CACHE mutually exclusive.  Ignore
  SQL_CACHE if SQL_NO_CACHE was used.  Remember what was set by the user.
  Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
2006-06-27 21:28:32 +04:00
unknown
2eb16be095 Merge mysql.com:/home/kgeorge/mysql/4.1/teamclean
into  mysql.com:/home/kgeorge/mysql/4.1/B16458
2006-06-27 18:47:22 +03:00
unknown
82d127b55b Dec. 31st, 9999 is still a valid date, only starting with Jan 1st 10000 things become invalid (Bug #12356)
mysql-test/r/func_sapdb.result:
  test cases for date range edge cases added
mysql-test/r/func_time.result:
  test cases for date range edge cases added
mysql-test/t/func_sapdb.test:
  test cases for date range edge cases added
mysql-test/t/func_time.test:
  test cases for date range edge cases added
2006-06-27 19:33:59 +04:00
unknown
6a4ec2e99d Merge mysql.com:/home/kgeorge/mysql/4.1/B16458
into  mysql.com:/home/kgeorge/mysql/5.0/B16458


sql/sql_select.cc:
  Auto merged
mysql-test/r/distinct.result:
  merge 4.1->5.0
mysql-test/t/distinct.test:
  merge 4.1->5.0
2006-06-27 17:59:49 +03:00
unknown
4b36c1d8ff Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
'SELECT DISTINCT a,b FROM t1' should not use temp table if there is unique 
index (or primary key) on a.
There are a number of other similar cases that can be calculated without the
use of a temp table : multi-part unique indexes, primary keys or using GROUP BY 
instead of DISTINCT.
When a GROUP BY/DISTINCT clause contains all key parts of a unique
index, then it is guaranteed that the fields of the clause will be
unique, therefore we can optimize away GROUP BY/DISTINCT altogether.
This optimization has two effects:
* there is no need to create a temporary table to compute the
   GROUP/DISTINCT operation (or the temporary table will be smaller if only GROUP 
   is removed and DISTINCT stays or if DISTINCT is removed and GROUP BY stays)
* this causes the statement in effect to become updatable in Connector/Java
because the result set columns will be direct reference to the primary key of 
the table (instead to the temporary table that it currently references). 

Implemented a check that will optimize away GROUP BY/DISTINCT for queries like 
the above.
Currently it will work only for single non-constant table in the FROM clause.


mysql-test/r/distinct.result:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - test case
mysql-test/t/distinct.test:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - test case
sql/sql_select.cc:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - disable GROUP BY if contains the fields of a unique index.
2006-06-27 17:40:19 +03:00
unknown
e832964174 merging fix 2006-06-27 17:00:24 +05:00
unknown
e3ef15ea37 Fix compilation failures on Windows caused by the patch for Bug#17199.
Fix a minor issue with Bug#16206 (bdb.test failed if the tree is compiled 
without blackhole).


include/my_sys.h:
  Change declaration of my_strdup_with_length to accept const char *,
  not const byte *: in 5 places out of 6 where this function is used,
  it's being passed char *, not byte *
mysql-test/r/bdb.result:
  Remove dependency on an optional engine (updated test results).
mysql-test/t/bdb.test:
  Remove dependency on an optional engine.
mysys/my_malloc.c:
  my_strdup_with_length: const byte * -> const char *
mysys/safemalloc.c:
  my_strdup_with_length: const byte * -> const char *
sql/ha_federated.cc:
  my_strdup_with_length: const byte * -> const char *
sql/log_event.cc:
  my_strdup_with_length: const byte * -> const char *
sql/set_var.cc:
  my_strdup_with_length: const byte * -> const char *
sql/sql_class.h:
  Change db_length type to uint from uint32 (see also table.h)
sql/table.h:
  Change the type of db_length to uint from uint32: LEX_STRING uses uint for 
  length, we need a small and consistent set of types to store length to 
  minimize cast and compile failures.
2006-06-27 14:56:24 +04:00
unknown
25652349e9 Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  mysql.com:/opt/local/work/mysql-5.0-17199


sql/sql_insert.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
2006-06-27 03:34:12 +04:00
unknown
cf119987f1 Merge bk-internal.mysql.com:/home/bk/mysql-5.0-runtime
into  mysql.com:/opt/local/work/mysql-5.0-17199


mysql-test/r/create.result:
  Auto merged
mysql-test/t/create.test:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/r/sp.result:
  SCCS merged
mysql-test/t/sp.test:
  SCCS merged
2006-06-27 00:52:56 +04:00
unknown
d6bcbfbe92 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.
2006-06-27 00:47:52 +04:00
unknown
3ddea20d8d Merge bk-internal.mysql.com:/home/bk/mysql-5.0-maint
into  mysql.com:/home/tnurnberg/review/mysql-5.0-maint-20588


mysql-test/t/mysqldump.test:
  Auto merged
2006-06-26 19:44:27 +02:00