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SET global query_cache_type=ON;
SET local query_cache_type=ON;
SET SESSION DEFAULT_STORAGE_ENGINE = myisam;
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=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY RANGE (to_days(`created_at`))
(PARTITION `month_2010_4` VALUES LESS THAN (734258) ENGINE = MyISAM,
PARTITION `month_2010_5` VALUES LESS THAN (734289) ENGINE = MyISAM,
PARTITION `month_max` VALUES LESS THAN MAXVALUE ENGINE = MyISAM)
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=MyISAM 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 = MyISAM,
PARTITION `month_2010_5` VALUES LESS THAN (734289) ENGINE = MyISAM,
PARTITION `month_max` VALUES LESS THAN MAXVALUE ENGINE = MyISAM)
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;
Warnings:
Warning 1196 Some non-transactional changed tables couldn't be rolled back
SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1;
cool
1
BEGIN;
SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1;
cool
1
ROLLBACK;
SELECT cool FROM `t1` WHERE (`t1`.id = 1) LIMIT 1;
cool
1
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 2
drop table t1;
set @@global.query_cache_size = @save_query_cache_size;
SET global query_cache_type=default;
|
