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Code Activity

MDEV-5602: CREATE OR REPLACE obtains stricter locks than the connection had before

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mysql-test/r/create_or_replace.result:
  Added test case
mysql-test/t/create_or_replace.test:
  Added test case
sql/sql_base.cc:
  Downgrade locks in LOCK TABLES + CREATE TABLE OR REPLACE
sql/sql_table.cc:
  Downgrade locks in LOCK TABLES + CREATE TABLE OR REPLACE
This commit is contained in:
Michael Widenius
2014-02-05 21:36:16 +02:00
parent 0557de84f1
commit 1695fc4532
6 changed files with 85 additions and 9 deletions
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22
mysql-test/t/create_or_replace.test
View File

@@ -3,6 +3,7 @@
#
--source include/have_innodb.inc
--source include/have_metadata_lock_info.inc
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings
@@ -265,6 +266,27 @@ create or replace table t1 (a int);
drop table t1;
drop view t1;
--echo #
--echo # MDEV-5602 CREATE OR REPLACE obtains stricter locks than the
--echo # connection had before
--echo #
create table t1 (a int);
lock table t1 write, t2 read;
--replace_column 1 #
select * from information_schema.metadata_lock_info;
create or replace table t1 (i int);
--replace_column 1 #
select * from information_schema.metadata_lock_info;
create or replace table t1 like t2;
--replace_column 1 #
select * from information_schema.metadata_lock_info;
create or replace table t1 select 1 as f1;
--replace_column 1 #
select * from information_schema.metadata_lock_info;
drop table t1;
unlock tables;
#
# Cleanup
#