# BUG#59338 Inconsistency in binlog for statements that don't change any rows STATEMENT SBR # In SBR, if a statement does not fail, it is always written to the binary log, # regardless if rows are changed or not. If there is a failure, a statement is # only written to the binary log if a non-transactional (.e.g. MyIsam) engine # is updated. INSERT ON DUPLICATE KEY UPDATE was not following the rule above # and was not written to the binary log, if then engine was Innodb. # # In this test case, we check if INSERT ON DUPLICATE KEY UPDATE that does not # change anything is still written to the binary log. # Prepare environment --connection master eval CREATE TABLE t1 ( a INT UNSIGNED NOT NULL PRIMARY KEY ) ENGINE=$engine_type; eval CREATE TABLE t2 ( a INT UNSIGNED ) ENGINE=$engine_type; INSERT INTO t1 VALUES (1); INSERT INTO t2 VALUES (1); # An insert duplicate that does not update anything must be written to the binary # log in SBR and MIXED modes. We check this property by summing a before and after # the update and comparing the binlog positions. The sum should be the same at both # points and the statement should be in the binary log. --let $binlog_file= query_get_value("SHOW MASTER STATUS", File, 1) --let $binlog_start= query_get_value("SHOW MASTER STATUS", Position, 1) --let $statement_file=INSERT INTO t1 SELECT t2.a FROM t2 ORDER BY t2.a ON DUPLICATE KEY UPDATE t1.a= t1.a --eval $statement_file --let $assert_cond= SUM(a) = 1 FROM t1 --let $assert_text= Sum of elements in t1 should be 1. --source include/assert.inc if (`SELECT @@BINLOG_FORMAT = 'ROW'`) { --let $binlog_position_cmp= = --let $assert_cond= [SHOW MASTER STATUS, Position, 1] $binlog_position_cmp $binlog_start --let $assert_text= In SBR or MIXED modes, the event in the binlog should be the same that was executed. In RBR mode, binlog position should stay unchanged. } if (`SELECT @@BINLOG_FORMAT != 'ROW' && UPPER('$engine_type') = UPPER('Innodb')`) { --let $assert_cond= \'[\'SHOW BINLOG EVENTS IN "$binlog_file" FROM $binlog_start LIMIT 1, 1\', Info, 1]\' LIKE \'%$statement_file\' --let $assert_text= In SBR or MIXED modes, the event in the binlog should be the same that was executed. In RBR mode, binlog position should stay unchanged. } if (`SELECT @@BINLOG_FORMAT != 'ROW' && UPPER('$engine_type') = UPPER('MyIsam')`) { --let $assert_cond= \'[\'SHOW BINLOG EVENTS IN "$binlog_file" FROM $binlog_start LIMIT 0, 1\', Info, 1]\' LIKE \'%$statement_file\' --let $assert_text= In SBR or MIXED modes, the event in the binlog should be the same that was executed. In RBR mode, binlog position should stay unchanged. } --source include/assert.inc # Compare master and slave --sync_slave_with_master --let $diff_tables= master:test.t1 , slave:test.t1 --source include/diff_tables.inc # Clean up --connection master drop table t1, t2; --sync_slave_with_master