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MDEV-20091 DROP TEMPORARY table is logged despite no CREATE was logged

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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.
This commit is contained in:
Sujatha
2019-07-23 15:46:51 +05:30
parent 0c7c61019d
commit e32f29b7f3
16 changed files with 203 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
mysql-test/suite/rpl/r/create_or_replace_statement.result
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@ -230,6 +230,13 @@ set binlog_format="STATEMENT";
ERROR HY000: Cannot switch out of the row-based binary log format when the session has open temporary tables
drop temporary table t8;
set @@binlog_format=@org_binlog_format;
set @@session.binlog_format=default;
drop temporary table if exists t9;
Warnings:
Note 1051 Unknown table 'test.t9'
set session binlog_format=default;
create temporary table t9 (i int);
*** Must be no DROP logged for t9 when there was no CREATE, at disconnect too ***
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # GTID #-#-#
@ -240,5 +247,9 @@ master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; create temporary table t7 (a int)
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # DROP TEMPORARY TABLE IF EXISTS `test`.`t7` /* generated by server */
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; create temporary table t9 (i int)
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; DROP /*!40005 TEMPORARY */ TABLE IF EXISTS `t9`
drop table t2;
include/rpl_end.inc