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148 lines
2.9 KiB
Text
148 lines
2.9 KiB
Text
#
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# Bug#38691 segfault/abort in ``UPDATE ...JOIN'' while
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# ``FLUSH TABLES WITH READ LOCK''
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# MySQL >= 5.0
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#
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# The test can take hours with valgrind
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--source include/not_valgrind.inc
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# Save the initial number of concurrent sessions
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--source include/count_sessions.inc
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SET @odl_sync_frm = @@global.sync_frm;
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SET @@global.sync_frm = OFF;
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# Test to see if select will get the lock ahead of low priority update
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connect (locker,localhost,root,,);
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connect (writer,localhost,root,,);
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--connection default
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--disable_warnings
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DROP TABLE IF EXISTS t1,t2,t3;
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--enable_warnings
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CREATE TABLE t1 (
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a int(11) unsigned default NULL,
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b varchar(250) default NULL,
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UNIQUE KEY a (a),
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KEY b (b)
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);
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INSERT INTO t1 VALUES (1, 1), (2, 2), (3, 3);
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CREATE TABLE t2 SELECT * FROM t1;
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CREATE TABLE t3 SELECT * FROM t1;
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--echo # test altering of columns that multiupdate doesn't use
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--echo # normal mode
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--disable_query_log
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let $i = 100;
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while ($i) {
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--dec $i
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--connection writer
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send UPDATE t2 INNER JOIN (t1 JOIN t3 USING(a)) USING(a)
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SET a = NULL WHERE t1.b <> t2.b;
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--connection locker
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ALTER TABLE t2 ADD COLUMN (c INT), LOCK=SHARED;
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ALTER TABLE t2 DROP COLUMN c, LOCK=SHARED;
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--connection writer
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--reap
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}
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--echo # PS mode
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--connection writer
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PREPARE stmt FROM 'UPDATE t2 INNER JOIN (t1 JOIN t3 USING(a)) USING(a)
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SET a = NULL WHERE t1.b <> t2.b';
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let $i = 100;
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while ($i) {
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--dec $i
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--connection writer
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--send EXECUTE stmt
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--connection locker
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ALTER TABLE t2 ADD COLUMN (c INT), LOCK=SHARED;
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ALTER TABLE t2 DROP COLUMN c, LOCK=SHARED;
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--connection writer
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--reap
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}
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--enable_query_log
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--echo # test altering of columns that multiupdate uses
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--echo # normal mode
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--connection default
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--disable_query_log
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let $i = 100;
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while ($i) {
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dec $i;
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--connection locker
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--error 0,ER_DUP_FIELDNAME
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ALTER TABLE t2 ADD COLUMN a int(11) unsigned default NULL, LOCK=SHARED;
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UPDATE t2 SET a=b;
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--connection writer
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--send UPDATE t2 INNER JOIN (t1 JOIN t3 USING(a)) USING(a) SET a = NULL WHERE t1.b <> t2.b
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--connection locker
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--error 0,ER_CANT_DROP_FIELD_OR_KEY
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ALTER TABLE t2 DROP COLUMN a, LOCK=SHARED;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR
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--reap
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}
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--enable_query_log
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--echo # PS mode
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--disable_query_log
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let $i = 100;
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while ($i) {
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dec $i;
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--connection locker
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--error 0,ER_DUP_FIELDNAME
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ALTER TABLE t2 ADD COLUMN a int(11) unsigned default NULL, LOCK=SHARED;
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UPDATE t2 SET a=b;
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--connection writer
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PREPARE stmt FROM 'UPDATE t2 INNER JOIN (t1 JOIN t3 USING(a)) USING(a) SET a = NULL WHERE t1.b <> t2.b';
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--send EXECUTE stmt
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--connection locker
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--error 0,ER_CANT_DROP_FIELD_OR_KEY
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ALTER TABLE t2 DROP COLUMN a, LOCK=SHARED;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR
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--reap
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}
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--enable_query_log
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--connection default
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DROP TABLE t1, t2, t3;
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# Close connections
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--disconnect locker
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--disconnect writer
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SET @@global.sync_frm = @odl_sync_frm;
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# Wait till all disconnects are completed
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--source include/wait_until_count_sessions.inc
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