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Bug #44331 Restore of database with events produces warning in replication

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If an EVENT is created without the DEFINER clause set explicitly or with it set  
to CURRENT_USER, the master and slaves become inconsistent. This issue stems from 
the fact that in both cases, the DEFINER is set to the CURRENT_USER of the current 
thread. On the master, the CURRENT_USER is the mysqld's user, while on the slave,  
the CURRENT_USER is empty for the SQL Thread which is responsible for executing 
the statement.

To fix the problem, we do what follows. If the definer is not set explicitly,  
a DEFINER clause is added when writing the query into binlog; if 'CURRENT_USER' is 
used as the DEFINER, it is replaced with the value of the current user before 
writing to binlog.
This commit is contained in:
2009-08-29 16:52:22 +08:00
parent 2d6c97e0e6
commit 90e25c6fb0
7 changed files with 131 additions and 12 deletions
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4
mysql-test/suite/rpl/r/rpl_drop_if_exists.result
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@@ -43,7 +43,7 @@ master-bin.000001 # Query # # use `test`; DROP TABLE IF EXISTS db_bug_13684.t
master-bin.000001 # Query # # DROP DATABASE IF EXISTS db_bug_13684
master-bin.000001 # Query # # CREATE DATABASE db_bug_13684
master-bin.000001 # Query # # use `test`; CREATE TABLE db_bug_13684.t (a int)
master-bin.000001 # Query # # use `test`; CREATE EVENT db_bug_13684.e
master-bin.000001 # Query # # use `test`; CREATE DEFINER=`root`@`localhost` EVENT db_bug_13684.e
ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 1 HOUR
DO
UPDATE db_bug_13684.t SET a = a + 1
@@ -75,7 +75,7 @@ master-bin.000001 # Query # # use `test`; DROP TABLE IF EXISTS db_bug_13684.t
master-bin.000001 # Query # # DROP DATABASE IF EXISTS db_bug_13684
master-bin.000001 # Query # # CREATE DATABASE db_bug_13684
master-bin.000001 # Query # # use `test`; CREATE TABLE db_bug_13684.t (a int)
master-bin.000001 # Query # # use `test`; CREATE EVENT db_bug_13684.e
master-bin.000001 # Query # # use `test`; CREATE DEFINER=`root`@`localhost` EVENT db_bug_13684.e
ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 1 HOUR
DO
UPDATE db_bug_13684.t SET a = a + 1