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SET global query_cache_type=ON; SET local query_cache_type=ON; SET SESSION DEFAULT_STORAGE_ENGINE = innodb; drop table if exists t1; set @save_query_cache_size = @@global.query_cache_size; # Test that partitions works with query cache flush query cache; SET GLOBAL query_cache_size=1024*1024*512; CREATE TABLE `t1` ( `id` int(11) NOT NULL , `created_at` datetime NOT NULL, `cool` tinyint default 0 ); ALTER TABLE t1 PARTITION BY RANGE (TO_DAYS(created_at)) ( PARTITION month_2010_4 VALUES LESS THAN (734258), PARTITION month_2010_5 VALUES LESS THAN (734289), PARTITION month_max VALUES LESS THAN MAXVALUE ); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL, `created_at` datetime NOT NULL, `cool` tinyint(4) DEFAULT 0 ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci PARTITION BY RANGE (to_days(`created_at`)) (PARTITION `month_2010_4` VALUES LESS THAN (734258) ENGINE = InnoDB, PARTITION `month_2010_5` VALUES LESS THAN (734289) ENGINE = InnoDB, PARTITION `month_max` VALUES LESS THAN MAXVALUE ENGINE = InnoDB) INSERT INTO t1 VALUES (1, now(), 0); flush status; show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 2 drop table t1; # Test that sub-partitions works with query cache flush query cache; SET GLOBAL query_cache_size=1024*1024*512; CREATE TABLE `t1` ( `id` int(11) NOT NULL , `created_at` datetime NOT NULL, `cool` tinyint default 0 ) PARTITION BY RANGE (TO_DAYS(created_at)) subpartition by hash(cool) subpartitions 3 ( PARTITION month_2010_4 VALUES LESS THAN (734258), PARTITION month_2010_5 VALUES LESS THAN (734289), PARTITION month_max VALUES LESS THAN MAXVALUE ); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL, `created_at` datetime NOT NULL, `cool` tinyint(4) DEFAULT 0 ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci PARTITION BY RANGE (to_days(`created_at`)) SUBPARTITION BY HASH (`cool`) SUBPARTITIONS 3 (PARTITION `month_2010_4` VALUES LESS THAN (734258) ENGINE = InnoDB, PARTITION `month_2010_5` VALUES LESS THAN (734289) ENGINE = InnoDB, PARTITION `month_max` VALUES LESS THAN MAXVALUE ENGINE = InnoDB) INSERT INTO t1 VALUES (1, now(), 0); flush status; show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 2 drop table t1; # # MySQL bug#53775 Query on partitioned table returns cached result # from previous transaction # flush query cache; flush status; SET GLOBAL query_cache_size=1024*1024*512; CREATE TABLE `t1` ( `id` int(11) NOT NULL , `created_at` datetime NOT NULL, `cool` tinyint default 0 ); ALTER TABLE t1 PARTITION BY RANGE (TO_DAYS(created_at)) ( PARTITION month_2010_4 VALUES LESS THAN (734258), PARTITION month_2010_5 VALUES LESS THAN (734289), PARTITION month_max VALUES LESS THAN MAXVALUE ); INSERT INTO t1 VALUES (1, now(), 0); show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 BEGIN; UPDATE `t1` SET `cool` = 1 WHERE `id` = 1; SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 1 ROLLBACK; SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 BEGIN; SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 ROLLBACK; SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1; cool 0 show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 2 show status like "Qcache_hits"; Variable_name Value Qcache_hits 1 drop table t1; set @@global.query_cache_size = @save_query_cache_size; SET global query_cache_type=default;