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Diffstat (limited to 'mysql-test/t/lock_multi.test')
| -rw-r--r-- | mysql-test/t/lock_multi.test | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/mysql-test/t/lock_multi.test b/mysql-test/t/lock_multi.test index 0d36b79df78..f1e9c0d253f 100644 --- a/mysql-test/t/lock_multi.test +++ b/mysql-test/t/lock_multi.test @@ -439,4 +439,35 @@ connection default; disconnect flush; drop table t1; +# +# Bug#30331: Table_locks_waited shows inaccurate values +# + +--disable_warnings +drop table if exists t1,t2; +--enable_warnings + +create table t1 (a int); +flush status; +lock tables t1 read; +let $tlwa= `show status like 'Table_locks_waited'`; +connect (waiter,localhost,root,,); +connection waiter; +--send insert into t1 values(1); +connection default; +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = "Locked" and info = "insert into t1 values(1)"; +--source include/wait_condition.inc +let $tlwb= `show status like 'Table_locks_waited'`; +unlock tables; +drop table t1; +disconnect waiter; +connection default; +--disable_query_log +eval SET @tlwa= SUBSTRING_INDEX('$tlwa', ' ', -1); +eval SET @tlwb= SUBSTRING_INDEX('$tlwb', ' ', -1); +--enable_query_log +select @tlwa < @tlwb; + --echo End of 5.1 tests |