100 lines
2.8 KiB
Plaintext
100 lines
2.8 KiB
Plaintext
#
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# Bug#49907: ALTER TABLE ... TRUNCATE PARTITION
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# does not wait for locks on the table
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#
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CREATE TABLE t1 (a INT)
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ENGINE = InnoDB
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PARTITION BY RANGE (a)
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(PARTITION p0 VALUES LESS THAN (15),
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PARTITION pMax VALUES LESS THAN MAXVALUE);
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INSERT INTO t1 VALUES (1), (11), (21), (33);
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BEGIN;
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DELETE FROM t1 WHERE a = 11;
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SELECT * FROM t1;
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a
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1
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21
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33
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# con1 (send)
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ALTER TABLE t1 TRUNCATE PARTITION pMax;
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# con default
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SELECT * FROM t1;
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a
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1
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21
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33
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# Commit will allow the TRUNCATE to finish
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COMMIT;
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# con1 (reap)
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# con1 (disconnect)
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# default connection
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SELECT * FROM t1;
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a
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1
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DROP TABLE t1;
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#
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# Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
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# concurrent I_S query
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#
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# This test is modified after WL#9814. The test case now cannot show
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# the partitions that are altered after I_S query execution is started.
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# That is because, the I_S system view execution sees snapshot (MVCC) of
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# DD metadata at the time the I_S system view select started processing.
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#
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# The test is updated to verify a case when a partition is removed after
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# I_S query starts executing. It is expected that I_S query report a
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# error and continue processing more rows.
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#
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create table t1 (a int)
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engine = innodb stats_persistent=0
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partition by range (a)
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(partition p0 values less than MAXVALUE);
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insert into t1 values (1), (11), (21), (33);
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SELECT * FROM t1;
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a
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1
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11
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21
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33
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci STATS_PERSISTENT=0
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/*!50100 PARTITION BY RANGE (`a`)
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(PARTITION p0 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */
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t1#P#p0.ibd
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SET DEBUG_SYNC='before_open_in_IS_query SIGNAL parked WAIT_FOR open';
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SELECT TABLE_SCHEMA, TABLE_NAME, PARTITION_NAME, PARTITION_ORDINAL_POSITION,
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PARTITION_DESCRIPTION, TABLE_ROWS
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FROM INFORMATION_SCHEMA.PARTITIONS
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WHERE TABLE_NAME = 't1' AND TABLE_SCHEMA = 'test';
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SET DEBUG_SYNC = 'now WAIT_FOR parked';
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SET DEBUG_SYNC = 'alter_table_inplace_before_commit SIGNAL open WAIT_FOR alter';
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ALTER TABLE t1 REORGANIZE PARTITION p0 INTO
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(PARTITION p1 VALUES LESS THAN (10),
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PARTITION p10 VALUES LESS THAN MAXVALUE);
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SET DEBUG_SYNC = 'now SIGNAL alter';
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TABLE_SCHEMA TABLE_NAME PARTITION_NAME PARTITION_ORDINAL_POSITION PARTITION_DESCRIPTION TABLE_ROWS
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test t1 p0 1 MAXVALUE NULL
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Warnings:
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Warning 1735 Unknown partition 'p0' in table 't1'
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t1#P#p1.ibd
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t1#P#p10.ibd
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci STATS_PERSISTENT=0
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/*!50100 PARTITION BY RANGE (`a`)
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(PARTITION p1 VALUES LESS THAN (10) ENGINE = InnoDB,
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PARTITION p10 VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */
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SELECT * FROM t1;
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a
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1
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11
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21
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33
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drop table t1;
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SET DEBUG_SYNC = 'RESET';
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