From 74374933c8db3c7f1de07ced89ce72dd705576b3 Mon Sep 17 00:00:00 2001 From: Mattias Jonsson Date: Mon, 20 Feb 2012 22:59:11 +0100 Subject: Bug#11761296: 53775: QUERY ON PARTITIONED TABLE RETURNS CACHED RESULT FROM PREVIOUS TRANSACTION The current Query Cache API is not fully compatible with the partitioning engine. There is no good way to implement support for QC due to: 1) a static callback for ha_partition would need to have access to all partition names and call the underlying callback for each [sub]partition with the correct name. 2) pruning would be impossible, even if one used the ulonglong engine_data due to if engine_data is changed, the table is invalidated by the QC. So the only viable solution to avoid incorrect data is to not allow caching of queries using partitioned tables. (There are some extra changes, due to removal of \r as line break) --- mysql-test/t/partition_cache.test | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 mysql-test/t/partition_cache.test (limited to 'mysql-test/t/partition_cache.test') diff --git a/mysql-test/t/partition_cache.test b/mysql-test/t/partition_cache.test new file mode 100644 index 00000000000..b5d19796b7c --- /dev/null +++ b/mysql-test/t/partition_cache.test @@ -0,0 +1,21 @@ +# t/cache_innodb.test +# +# Last update: +# 2006-07-26 ML test refactored (MySQL 5.1) +# main code t/innodb_cache.test --> include/query_cache.inc +# new wrapper t/cache_innodb.test +# + +--source include/have_query_cache.inc + +--source include/have_innodb.inc +--source include/have_partition.inc +let $engine_type= InnoDB; +# Using SELECT to get a space as first character. +let $partitions_a= `SELECT ' PARTITION BY KEY (a) PARTITIONS 3'`; +let $partitions_id= `SELECT ' PARTITION BY HASH (id) PARTITIONS 3'`; +let $partitions_s1= `SELECT ' PARTITION BY KEY (s1) PARTITIONS 3'`; +# partitioning does not support FOREIGN KEYs +let $test_foreign_keys= 0; + +--source include/query_cache.inc -- cgit v1.2.1