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7e9ffc69ec
Do not collect EITS statistics for this statement: ALTER TABLE t ANALYZE PARTITION p EITS stats are currently global, not per-partition. Collecting global stats when we are asked to process just one partition causes issues for DBAs.
44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
--source include/have_partition.inc
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--echo #
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--echo # Bug mdev-3866: valgrind complain from ANALYZE on a table with BIT field
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--echo #
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SET use_stat_tables = 'preferably';
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CREATE TABLE t1 (pk int PRIMARY KEY, a bit(1), INDEX idx(a)
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) ENGINE=MyISAM PARTITION BY KEY(pk) PARTITIONS 2;
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INSERT INTO t1 VALUES (1,1),(2,0),(3,0),(4,1);
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ANALYZE TABLE t1;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-21472: ALTER TABLE ... ANALYZE PARTITION ... with EITS reads and locks all rows
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--echo #
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CREATE TABLE t1 (
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id int(11) auto_increment primary key,
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c1 int(11) DEFAULT NULL
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) PARTITION BY RANGE (id) (
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PARTITION p0 VALUES LESS THAN (4),
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PARTITION p1 VALUES LESS THAN MAXVALUE
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);
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insert into t1(c1) values (1),(1),(1),(1), (1),(1),(1),(1);
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insert into t1(c1) select c1 from t1;
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insert into t1(c1) select c1 from t1;
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select count(*) from t1;
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select count(*) from t1 where id <4;
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flush status;
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set session use_stat_tables='preferably';
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--echo # Must NOT show "Engine-independent statistics collected":
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alter table t1 analyze partition p0;
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--echo # Should not have Handler_read_rnd_next=34
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show session status like 'Handler_read_rnd%';
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drop table t1;
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SET use_stat_tables = DEFAULT;
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