The checks in the test for bug #12480 were too wide and
made the test to depend on the procedures and triggers
present in the server.
Corrected the test to check only for the procedure and
trigger it creates.
mysql-test/r/rpl_trigger.result:
Bug #19390: corrected the test to check for its procedure only
mysql-test/t/rpl_trigger.test:
Bug #19390: corrected the test to check for its procedure only
This change set implements the DROP TRIGGER IF EXISTS functionality.
This fix is considered a bug and not a feature, because without it,
there is no known method to write a database creation script that can create
a trigger without failing, when executed on a database that may or may not
contain already a trigger of the same name.
Implementing this functionality closes an orthogonality gap between triggers
and stored procedures / stored functions (which do support the DROP IF
EXISTS syntax).
In sql_trigger.cc, in mysql_create_or_drop_trigger,
the code has been reordered to:
- perform the tests that do not depend on the file system (access()),
- get the locks (wait_if_global_read_lock, LOCK_open)
- call access()
- perform the operation
- write to the binlog
- unlock (LOCK_open, start_waiting_global_read_lock)
This is to ensure that all the code that depends on the presence of the
trigger file is executed in the same critical section,
and prevents race conditions similar to the case fixed by Bug 14262 :
- thread 1 executes DROP TRIGGER IF EXISTS, access() returns a failure
- thread 2 executes CREATE TRIGGER
- thread 2 logs CREATE TRIGGER
- thread 1 logs DROP TRIGGER IF EXISTS
The patch itself is based on code contributed by the MySQL community,
under the terms of the Contributor License Agreement (See Bug 18161).
mysql-test/r/rpl_trigger.result:
DROP TRIGGER IF EXISTS
mysql-test/r/trigger.result:
DROP TRIGGER IF EXISTS
mysql-test/t/rpl_trigger.test:
DROP TRIGGER IF EXISTS
mysql-test/t/trigger.test:
DROP TRIGGER IF EXISTS
sql/sql_trigger.cc:
DROP TRIGGER IF EXISTS
sql/sql_yacc.yy:
DROP TRIGGER IF EXISTS
mysql-test/r/mysqldump-max.result:
Update test result after fix of spelling error
mysql-test/r/rpl_trigger.result:
Update test result after fix of spelling error
mysql-test/r/type_newdecimal.result:
Update test result after fix of spelling error
mysql-test/t/mysqldump-max.test:
Fix spelling error "disable_warnings"
Write shorter "drop table..."
mysql-test/t/rpl_trigger.test:
Fix spelling error, there is no --ignore_warnings
mysql-test/t/type_newdecimal.test:
Fix spelling error
can be not replicable.
Now CREATE statements for writing in the binlog are created as follows:
- the beginning of the statement is re-created;
- the rest of the statement is copied from the original query.
The problem appears when there is a version-specific comment (produced by
mysqldump), started in the re-created part of the statement and closed in the
copied part -- there is closing comment-parenthesis, but there is no opening
one.
The proper fix could be to re-create original statement, but we can not
implement it in 5.0. So, for 5.0 the fix is just to cut closing
comment-parenthesis. This technique is also used for SHOW CREATE PROCEDURE
statement (so we are able to reuse existing code).
mysql-test/r/rpl_sp.result:
Updated result file.
mysql-test/r/rpl_trigger.result:
Updated result file.
mysql-test/r/rpl_view.result:
Updated result file.
mysql-test/t/rpl_sp.test:
Added test case for BUG#20438.
mysql-test/t/rpl_trigger.test:
Added test case for BUG#20438.
mysql-test/t/rpl_view.test:
Added test case for BUG#20438.
sql/sp.cc:
Trim comments at the end.
sql/sp_head.cc:
Moved this code to the separate function to be re-used.
sql/sql_lex.cc:
Added a new function.
sql/sql_lex.h:
Added a new function.
sql/sql_trigger.cc:
Trim comments at the end.
sql/sql_view.cc:
Trim comments at the end.
only its own tables to prevent getting tables from others.
mysql-test/r/rpl_trigger.result:
Update the result file.
mysql-test/t/rpl_trigger.test:
Fix the test to query only its own tables to prevent getting tables
from other tests.
The idea of the fix is to extend support of non-SUID triggers for backward
compatibility. Formerly non-SUID triggers were appeared when "new" server
is being started against "old" database. Now, they are also created when
"new" slave receives updates from "old" master.
mysql-test/r/rpl_trigger.result:
Updated the result file with the results of the test for BUG#16266.
mysql-test/t/rpl_trigger.test:
Added the test case for BUG#16266.
sql/mysql_priv.h:
Added an utility operation to be used from sql_yacc.yy.
sql/sql_parse.cc:
Add a utility operation to be used from sql_yacc.yy.
sql/sql_trigger.cc:
Extend support of non-SUID triggers.
sql/sql_view.cc:
Initialize LEX::definer if DEFINER-clause is missing.
sql/sql_yacc.yy:
Extended support of non-SUID triggers.
mysql-test/std_data/bug16266.000001:
A new binlog file for testing a patch for BUG#16266.
for replicated update.
mysql-test/r/rpl_trigger.result:
results are changed to account 13227 addon.
mysql-test/t/rpl_trigger.test:
BUG#13227 test case is added.
error message if database is changed.
mysql-test/r/rpl_trigger.result:
Fixed results for the added test cases
mysql-test/t/rpl_trigger.test:
Added test cases for bug #14614
sql/sql_db.cc:
Fixed bug #14614.
Modified mysql_change_db(): The memory where db name resides
is freed by a slave thread.
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
Fixed failing test
mysql-test/t/rpl_trigger.test:
Added missing option that caused the test to fail sometimes
sql/sql_parse.cc:
Don't clear warnings for functions or triggers
This allows us to use statement replication with functions and triggers
The following things are fixed with this patch:
- NOW() and automatic timestamps takes the value from the main event for functions and triggers (which allows these to replicate with statement level logging)
- No side effects for triggers or functions with auto-increment values(), last_insert_id(), rand() or found_rows()
- Triggers can't return result sets
Fixes bugs:
#12480: NOW() is not constant in a trigger
#12481: Using NOW() in a stored function breaks statement based replication
#12482: Triggers has side effects with auto_increment values
#11587: trigger causes lost connection error
mysql-test/r/trigger.result:
Added test fpr big
mysql-test/t/sp-error.test:
Changed error message numbers
mysql-test/t/trigger.test:
Added test for trigger returning result (#11587)
sql/item_func.cc:
Store the first used seed value for RAND() value.
(This makes rand() replicatable in functions and triggers)
Save and clear run context before executing a stored function and restore it afterwards.
This removes side effects of stored functions for RAND(), auto-increment values and NOW() and makes most stored function replicatable
sql/share/errmsg.txt:
Reuse error message also for triggers
sql/sp_head.cc:
If in function or trigger, don't change value of NOW()
(This allows us to use statement replication with functions that directly or indirectly uses timestamps)
sql/sql_class.cc:
Added framework for storing and retrieving run context while exceuting triggers or stored functions.
sql/sql_class.h:
Added framework for storing and retrieving run context while exceuting triggers or stored functions.
sql/sql_parse.cc:
If in function or trigger, don't change value of NOW()
(This allows us to use statement replication with functions that directly or indirectly uses timestamps)
sql/sql_trigger.cc:
Moved process_triggers function from sql_trigger.h
Use reset/restore sub_statement_state while executing triggers to avoid side effects and make them replicatable
sql/sql_trigger.h:
Moved process_triggers function from sql_trigger.h
Use reset/restore sub_statement_state while executing triggers to avoid side effects and make them replicatable
sql/sql_yacc.yy:
Give error message if trigger can return a result set (Bug #11587)
tests/fork_big2.pl:
Removed return from end of lines
mysql-test/r/rpl_trigger.result:
New BitKeeper file ``mysql-test/r/rpl_trigger.result''
mysql-test/t/rpl_trigger.test:
New BitKeeper file ``mysql-test/t/rpl_trigger.test''
