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c24b4b92aa
Remove show create table because, Test has two concurrent statements: (1) ALTER TABLE t1 ADD COLUMN f3 INTEGER; INSERT INTO t1 VALUES (NULL, 10000, 10000); (2) CREATE UNIQUE INDEX i1 ON t1(f2); If INSERT starts execution and reaches certifying state and execution is switched to CREATE, there will be MDL-conflict. This MDL-conflict is resolved by BF-abort (brute force abort) i.e. INSERT is aborted. But it has already acquired value for auto_increment column from InnoDB. INSERT is then retryed and that will cause new auto_increment value generation. Therefore, later SHOW CREATE TABLE could show unstable values i.e. either value that is generated on schedule where there was no retry and value where there was a retry. Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
51 lines
1.6 KiB
Text
51 lines
1.6 KiB
Text
connection node_2;
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connection node_1;
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connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1;
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connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
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connection node_1;
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CREATE TABLE t1 (f1 INTEGER PRIMARY KEY AUTO_INCREMENT, f2 INTEGER);
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INSERT INTO t1(f2) SELECT seq FROM seq_1_to_1000;
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connection node_2a;
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SET SESSION wsrep_sync_wait=0;
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connection node_1a;
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# Block the applier on node_1 and issue a ddl from node_2
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SET SESSION wsrep_sync_wait=0;
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SET GLOBAL wsrep_provider_options = 'dbug=d,apply_monitor_slave_enter_sync';
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connection node_2;
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# DDL 1
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ALTER TABLE t1 ADD COLUMN f3 INTEGER; INSERT INTO t1 VALUES (NULL, 10000, 10000);;
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connection node_1a;
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SET SESSION wsrep_on = 0;
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SET SESSION wsrep_on = 1;
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SET GLOBAL wsrep_provider_options = 'dbug=';
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# This will block on acquiring total order isolation
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connection node_1;
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# DDL 2
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CREATE UNIQUE INDEX i1 ON t1(f2);;
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connection node_1a;
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# Signal DDL 1
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SET GLOBAL wsrep_provider_options = 'dbug=';
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SET GLOBAL wsrep_provider_options = 'signal=apply_monitor_slave_enter_sync';
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connection node_2;
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connection node_1;
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connection node_2;
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SELECT COUNT(*) AS EXPECT_3 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 't1';
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EXPECT_3
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3
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SELECT COUNT(*) AS EXPECT_2 FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME = 't1';
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EXPECT_2
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2
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SELECT COUNT(*) AS EXPECT_1001 FROM t1;
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EXPECT_1001
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1001
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connection node_1;
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SELECT COUNT(*) AS EXPECT_3 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 't1';
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EXPECT_3
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3
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SELECT COUNT(*) AS EXPECT_2 FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME = 't1';
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EXPECT_2
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2
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SELECT COUNT(*) AS EXPECT_1001 FROM t1;
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EXPECT_1001
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1001
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DROP TABLE t1;
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