--source include/have_innodb.inc --source include/have_partition.inc 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`; --echo #Confirms 1 row in partition 'p02' SELECT TABLE_NAME, PARTITION_NAME, TABLE_ROWS FROM information_schema.PARTITIONS where TABLE_NAME = 'test'; ALTER TABLE `test` TRUNCATE PARTITION `p02`; --echo #Confirms no more rows in partition 'p02' SELECT TABLE_NAME, PARTITION_NAME, TABLE_ROWS FROM information_schema.PARTITIONS where TABLE_NAME = 'test'; --echo #Before the patch, this returned the previously existing values. SELECT * FROM `test`; SELECT SQL_CACHE * FROM `test`; SELECT SQL_NO_CACHE * FROM `test`; DROP TABLE test; SET GLOBAL query_cache_size=DEFAULT;