diff options
Diffstat (limited to 'mysql-test/r/query_cache_28249.result')
-rw-r--r-- | mysql-test/r/query_cache_28249.result | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/mysql-test/r/query_cache_28249.result b/mysql-test/r/query_cache_28249.result index 72d713e8e70..ba694179ceb 100644 --- a/mysql-test/r/query_cache_28249.result +++ b/mysql-test/r/query_cache_28249.result @@ -3,8 +3,10 @@ SET @query_cache_limit= @@global.query_cache_limit; SET @query_cache_min_res_unit= @@global.query_cache_min_res_unit; SET @query_cache_size= @@global.query_cache_size; # Bug#28249 Query Cache returns wrong result with concurrent insert/ certain lock -# Establish connections user1,user2,user3 (user=root) -# Switch to connection user1 +connect user1,localhost,root,,test,,; +connect user2,localhost,root,,test,,; +connect user3,localhost,root,,test,,; +connection user1; SET GLOBAL query_cache_type=1; SET GLOBAL query_cache_limit=10000; SET GLOBAL query_cache_min_res_unit=0; @@ -14,13 +16,13 @@ DROP TABLE IF EXISTS t1, t2; CREATE TABLE t1 (a INT); CREATE TABLE t2 (a INT); INSERT INTO t1 VALUES (1),(2),(3); -# Switch to connection user2 +connection user2; LOCK TABLE t2 WRITE; -# Switch to connection user1 +connection user1; # "send" the next select, "reap" the result later. # The select will be blocked by the write lock on the t1. SELECT *, (SELECT COUNT(*) FROM t2) FROM t1; -# Switch to connection user3 +connection user3; # Poll till the select of connection user1 is blocked by the write lock on t1. SELECT user,command,state,info FROM information_schema.processlist WHERE state = 'Waiting for table metadata lock' @@ -28,18 +30,18 @@ WHERE state = 'Waiting for table metadata lock' user command state info root Query Waiting for table metadata lock SELECT *, (SELECT COUNT(*) FROM t2) FROM t1 INSERT INTO t1 VALUES (4); -# Switch to connection user2 +connection user2; UNLOCK TABLES; -# Switch to connection user1 +connection user1; # Collecting ("reap") the result from the previously blocked select. # The printing of the result (varies between 3 and 4 rows) set has to be suppressed. -# Switch to connection user3 +connection user3; # The next select enforces that effects of "concurrent_inserts" like the # record with a = 4 is missing in result sets can no more happen. SELECT 1 FROM t1 WHERE a = 4; 1 1 -# Switch to connection user1 +connection user1; # The next result set must contain 4 rows. SELECT *, (SELECT COUNT(*) FROM t2) FROM t1; a (SELECT COUNT(*) FROM t2) @@ -55,7 +57,10 @@ a (SELECT COUNT(*) FROM t2) 3 0 4 0 DROP TABLE t1,t2; -# Switch to connection default + close connections user1,user2,user3 +connection default; +disconnect user1; +disconnect user2; +disconnect user3; SET GLOBAL query_cache_type= @query_cache_type; SET GLOBAL query_cache_limit= @query_cache_limit; SET GLOBAL query_cache_min_res_unit= @query_cache_min_res_unit; |