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Bug#34306: Can't make copy of log tables when server binary log is enabled

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The problem is that when statement-based replication was enabled,
statements such as INSERT INTO .. SELECT FROM .. and CREATE TABLE
.. SELECT FROM need to grab a read lock on the source table that
does not permit concurrent inserts, which would in turn be denied
if the source table is a log table because log tables can't be
locked exclusively.

The solution is to not take such a lock when the source table is
a log table as it is unsafe to replicate log tables under statement
based replication. Furthermore, the read lock that does not permits
concurrent inserts is now only taken if statement-based replication
is enabled and if the source table is not a log table.
This commit is contained in:
Davi Arnaut
2008-09-29 10:53:40 -03:00
parent 7388a9f54a
commit 35ffaf10e3
12 changed files with 310 additions and 15 deletions
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29
mysql-test/r/log_tables.result
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@@ -832,6 +832,35 @@ Execute select '000 001 002 003 004 005 006 007 008 009010 011 012 013 014 015 0
Query set global general_log = off
deallocate prepare long_query;
set global general_log = @old_general_log_state;
DROP TABLE IF EXISTS log_count;
DROP TABLE IF EXISTS slow_log_copy;
DROP TABLE IF EXISTS general_log_copy;
CREATE TABLE log_count (count BIGINT(21));
SET @old_general_log_state = @@global.general_log;
SET @old_slow_log_state = @@global.slow_query_log;
SET GLOBAL general_log = ON;
SET GLOBAL slow_query_log = ON;
CREATE TABLE slow_log_copy SELECT * FROM mysql.slow_log;
INSERT INTO slow_log_copy SELECT * FROM mysql.slow_log;
INSERT INTO log_count (count) VALUES ((SELECT count(*) FROM mysql.slow_log));
DROP TABLE slow_log_copy;
CREATE TABLE general_log_copy SELECT * FROM mysql.general_log;
INSERT INTO general_log_copy SELECT * FROM mysql.general_log;
INSERT INTO log_count (count) VALUES ((SELECT count(*) FROM mysql.general_log));
DROP TABLE general_log_copy;
SET GLOBAL general_log = OFF;
SET GLOBAL slow_query_log = OFF;
CREATE TABLE slow_log_copy SELECT * FROM mysql.slow_log;
INSERT INTO slow_log_copy SELECT * FROM mysql.slow_log;
INSERT INTO log_count (count) VALUES ((SELECT count(*) FROM mysql.slow_log));
DROP TABLE slow_log_copy;
CREATE TABLE general_log_copy SELECT * FROM mysql.general_log;
INSERT INTO general_log_copy SELECT * FROM mysql.general_log;
INSERT INTO log_count (count) VALUES ((SELECT count(*) FROM mysql.general_log));
DROP TABLE general_log_copy;
SET GLOBAL general_log = @old_general_log_state;
SET GLOBAL slow_query_log = @old_slow_log_state;
DROP TABLE log_count;
SET @old_slow_log_state = @@global.slow_query_log;
SET SESSION long_query_time = 0;
SET GLOBAL slow_query_log = ON;