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MDEV-5589 commit set up a policy to skip DROP TEMPORARY TABLE binary logging in case the target table has not been "CREATEed" in binlog (no CREATE Query-log-event was logged into the binary log). It turns out that 1. the rule did not cover non-existing table DROPped with IF-EXISTS clause. The logged-create knowledge for the non-existing one does not even need MDEV-5589 patch, and 2. connection close disobeys it to trigger automatic DROP-IF-EXISTS binlogging. Either 1 or 2 or even both is/are also responsible for unexpected binlog records observed in MDEV-17863, actually rendering a referred @@global.read_only irrelevant as far as the described stored procedure definition *and* the ROW binlog-format are concerned.
55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
# ==== Purpose ====
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#
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# Test verifies that plain DROP TEMPORARY TABLE IF EXISTS statements are not
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# replicated during row based replication.
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#
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# ==== Implementation ====
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#
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# Steps:
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# 0 - Have a read_only master and slave. Binlog format should be "ROW".
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# 1 - Create a procedure which executes DROP TEMPORARY TABLE IF EXISTS
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# statements prior to CREATE TEMPORARY TABLE.
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# 2 - Execute the procedure.
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# 3 - Verify that the DROP TEMPORARY TABLE IF EXISTS statements within the
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# procedure are not written to the binary log.
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#
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# ==== References ====
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#
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# MDEV-20091: DROP TEMPORARY table is logged despite no CREATE was logged
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#
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--source include/have_binlog_format_row.inc
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--source include/have_innodb.inc
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--source include/master-slave.inc
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--source include/rpl_connection_slave.inc
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SET GLOBAL read_only=1;
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--source include/rpl_connection_master.inc
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DELIMITER |;
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CREATE PROCEDURE testproc()
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BEGIN
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DROP TEMPORARY TABLE IF EXISTS t1_tmp;
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DROP TEMPORARY TABLE IF EXISTS t2_tmp;
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CREATE TEMPORARY TABLE IF NOT EXISTS t1_tmp ( t1 varchar(400) DEFAULT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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CREATE TEMPORARY TABLE IF NOT EXISTS t2_tmp ( t2 varchar(16) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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END|
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DELIMITER ;|
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SET GLOBAL read_only=1;
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CALL testproc();
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--echo ******** None of the above DROP TEMPORARY TABLE statement should be found in binary log ********
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--source include/show_binlog_events.inc
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--sync_slave_with_master
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SELECT @@read_only;
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--echo ======== CLEAN UP =========
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--source include/rpl_connection_master.inc
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DROP TEMPORARY TABLE t1_tmp;
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DROP TEMPORARY TABLE t2_tmp;
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DROP PROCEDURE testproc;
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SET GLOBAL read_only=0;
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--sync_slave_with_master
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SET GLOBAL read_only=0;
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--source include/rpl_end.inc
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