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ac6026ce27
temp table
This patch introduces two key changes in the replication's behavior.
Firstly, it reverts part of BUG#51894 which puts any update to temporary tables
into the trx-cache. Now, updates to temporary tables are handled according to
the type of their engines as a regular table.
Secondly, an unsafe mixed statement, (i.e. a statement that access transactional
table as well non-transactional or temporary table, and writes to any of them),
are written into the trx-cache in order to minimize errors in the execution when
the statement logging format is in use.
Such changes has a direct impact on which statements are classified as unsafe
statements and thus part of BUG#53259 is reverted.
61 lines
2.6 KiB
Text
61 lines
2.6 KiB
Text
CREATE TABLE t1 (i int unique) ENGINE=innodb;
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reset master;
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begin;
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insert into t1 values (1),(2);
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*** the following UPDATE query wont generate any updates for the binlog ***
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update t1 set i = 3 where i < 3;
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ERROR 23000: Duplicate entry '3' for key 'i'
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commit;
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*** Results of the test: the binlog must have only Write_rows events not any Update_rows ***
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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delete from t1;
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reset master;
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begin;
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insert into t1 values (1),(2);
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*** the following UPDATE query wont generate any updates for the binlog ***
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insert into t1 values (3),(4),(1),(2);
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ERROR 23000: Duplicate entry '1' for key 'i'
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commit;
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*** Results of the test: the binlog must have only one Write_rows event not two ***
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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drop table t1;
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RESET MASTER;
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CREATE TABLE t1 ( c1 int , primary key (c1)) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1), (2), (3);
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CREATE TEMPORARY TABLE IF NOT EXISTS t2 LIKE t1;
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TRUNCATE TABLE t2;
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DROP TABLE t1;
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###############################################
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### assertion: No event for 'TRUNCATE TABLE t2'
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###############################################
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; CREATE TABLE t1 ( c1 int , primary key (c1)) ENGINE=InnoDB
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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###############################################
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RESET MASTER;
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CREATE TEMPORARY TABLE t1 (c1 int) Engine=InnoDB;
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INSERT INTO t1 VALUES (1), (2), (3);
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TRUNCATE t1;
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DROP TEMPORARY TABLE t1;
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###############################################
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### assertion: No event for 'TRUNCATE TABLE t1'
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###############################################
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; DROP TEMPORARY TABLE IF EXISTS `t1` /* generated by server */
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###############################################
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