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5eb0b4819c
Details for Bug#43015 main.lock_multi: Weak code (sleeps etc.)
-------------------------------------------------------------
- The fix for bug 42003 already removed a lot of the weaknesses mentioned.
- Tests showed that there are unfortunately no improvements of this tests
in MySQL 5.1 which could be ported back to 5.0.
- Remove a superfluous "--sleep 1" around line 195
Details for Bug#43065 main.lock_multi: This test is too big if the disk is slow
-------------------------------------------------------------------------------
- move the subtests for the bugs 38499 and 36691 into separate scripts
- runtime under excessive parallel I/O load after applying the fix
lock_multi [ pass ] 22887
lock_multi_bug38499 [ pass ] 536926
lock_multi_bug38691 [ pass ] 258498
221 lines
4.4 KiB
Text
221 lines
4.4 KiB
Text
# Bug38499 flush tables and multitable table update with derived table cause crash
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# MySQL >= 5.0
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#
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# Save the initial number of concurrent sessions
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--source include/count_sessions.inc
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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;
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--enable_warnings
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CREATE TABLE t1( a INT, b INT );
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INSERT INTO t1 VALUES (1, 1), (2, 2), (3, 3), (4, 4);
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--echo # 1. test regular tables
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--echo # 1.1. test altering of columns that multiupdate doesn't use
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--echo # 1.1.1. 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 t1, (SELECT 1 FROM t1 t1i) d SET a = 0 WHERE 1=0;
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--connection locker
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ALTER TABLE t1 ADD COLUMN (c INT);
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ALTER TABLE t1 DROP COLUMN c;
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--connection writer
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--reap
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}
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--echo # 1.1.2. PS mode
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--connection writer
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PREPARE stmt FROM 'UPDATE t1, (SELECT 1 FROM t1 t1i) d SET a = 0 WHERE 1=0';
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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 t1 ADD COLUMN (c INT);
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ALTER TABLE t1 DROP COLUMN c;
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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 # 1.2. test altering of columns that multiupdate uses
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--echo # 1.2.1. 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 t1 ADD COLUMN a int(11) unsigned default NULL;
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UPDATE t1 SET a=b;
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--connection writer
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--send UPDATE t1, (SELECT 1 FROM t1 t1i) d SET a = 0 WHERE 1=0;
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--connection locker
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--error 0,ER_CANT_DROP_FIELD_OR_KEY
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ALTER TABLE t1 DROP COLUMN a;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR # unknown column error
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--reap
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}
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--enable_query_log
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--echo # 1.2.2. 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 t1 ADD COLUMN a INT;
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UPDATE t1 SET a=b;
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--connection writer
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PREPARE stmt FROM 'UPDATE t1, (SELECT 1 FROM t1 t1i) d SET a = 0 WHERE 1=0';
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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 t1 DROP COLUMN a;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR # Unknown column 'a' in 'field list'
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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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ALTER TABLE t1 ADD COLUMN a INT;
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--echo # 2. test UNIONs
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--echo # 2.1. test altering of columns that multiupdate doesn't use
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--echo # 2.1.1. 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 t1, ((SELECT 1 FROM t1 t1i) UNION (SELECT 2 FROM t1 t1ii)) e SET a = 0 WHERE 1=0;
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--connection locker
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ALTER TABLE t1 ADD COLUMN (c INT);
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ALTER TABLE t1 DROP COLUMN c;
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--connection writer
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--reap
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}
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--echo # 2.1.2. PS mode
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--connection writer
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PREPARE stmt FROM 'UPDATE t1, ((SELECT 1 FROM t1 t1i) UNION (SELECT 2 FROM t1 t1ii)) e SET a = 0 WHERE 1=0';
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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 t1 ADD COLUMN (c INT);
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ALTER TABLE t1 DROP COLUMN c;
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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 # 2.2. test altering of columns that multiupdate uses
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--echo # 2.2.1. 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 t1 ADD COLUMN a int(11) unsigned default NULL;
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UPDATE t1 SET a=b;
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--connection writer
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--send UPDATE t1, ((SELECT 1 FROM t1 t1i) UNION (SELECT 2 FROM t1 t1ii)) e SET a = 0 WHERE 1=0;
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--connection locker
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--error 0,ER_CANT_DROP_FIELD_OR_KEY
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ALTER TABLE t1 DROP COLUMN a;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR # Unknown column 'a' in 'field list'
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--reap
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}
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--enable_query_log
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--echo # 2.2.2. 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 t1 ADD COLUMN a INT;
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UPDATE t1 SET a=b;
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--connection writer
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PREPARE stmt FROM 'UPDATE t1, ((SELECT 1 FROM t1 t1i) UNION (SELECT 2 FROM t1 t1ii)) e SET a = 0 WHERE 1=0';
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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 t1 DROP COLUMN a;
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--connection writer
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--error 0,ER_BAD_FIELD_ERROR # Unknown column 'a' in 'field list'
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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;
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# Close connections
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--disconnect locker
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--disconnect writer
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# End of 5.0 tests
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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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