1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
set @save_query_cache_size=@@query_cache_size;
SET GLOBAL query_cache_size=1024*1024*8;
CREATE TABLE `test` (
`uniqueId` INT NOT NULL,
`partitionId` INT NOT NULL,
PRIMARY KEY (`uniqueId`,`partitionId`)
) ENGINE=InnoDB PARTITION BY LIST (partitionId) (
PARTITION p01 VALUES IN (1),
PARTITION p02 VALUES IN (2)
);
INSERT INTO `test`(`uniqueId`,`partitionId`) VALUES(407237055, 2);
SELECT * FROM `test`;
uniqueId partitionId
407237055 2
#Confirms 1 row in partition 'p02'
SELECT TABLE_NAME, PARTITION_NAME, TABLE_ROWS FROM information_schema.PARTITIONS where TABLE_NAME = 'test';
TABLE_NAME PARTITION_NAME TABLE_ROWS
test p01 0
test p02 1
ALTER TABLE `test` TRUNCATE PARTITION `p02`;
#Confirms no more rows in partition 'p02'
SELECT TABLE_NAME, PARTITION_NAME, TABLE_ROWS FROM information_schema.PARTITIONS where TABLE_NAME = 'test';
TABLE_NAME PARTITION_NAME TABLE_ROWS
test p01 0
test p02 0
#Before the patch, this returned the previously existing values.
SELECT * FROM `test`;
uniqueId partitionId
SELECT SQL_CACHE * FROM `test`;
uniqueId partitionId
SELECT SQL_NO_CACHE * FROM `test`;
uniqueId partitionId
DROP TABLE test;
SET GLOBAL query_cache_size=@save_query_cache_size;
|
