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# include/deadlock.inc # # The variable # $engine_type -- storage engine to be tested # has to be set before sourcing this script. # # Last update: # 2006-07-26 ML refactoring + print when connection is switched # old name was t/innodb-deadlock.test # main code went into include/deadlock.inc # --echo # Establish connection con1 (user=root) connect (con1,localhost,root,,); --echo # Establish connection con2 (user=root) connect (con2,localhost,root,,); --disable_warnings drop table if exists t1,t2; --enable_warnings # # Testing of FOR UPDATE # --echo # Switch to connection con1 connection con1; eval create table t1 (id integer, x integer) engine = $engine_type; insert into t1 values(0, 0); set autocommit=0; SELECT * from t1 where id = 0 FOR UPDATE; --echo # Switch to connection con2 connection con2; set autocommit=0; # The following query should hang because con1 is locking the record --send update t1 set x=2 where id = 0; --sleep 2 --echo # Switch to connection con1 connection con1; update t1 set x=1 where id = 0; select * from t1; commit; --echo # Switch to connection con2 connection con2; reap; commit; --echo # Switch to connection con1 connection con1; select * from t1; commit; drop table t1; # # Testing of FOR UPDATE # --echo # Switch to connection con1 connection con1; eval create table t1 (id integer, x integer) engine = $engine_type; eval create table t2 (b integer, a integer) engine = $engine_type; insert into t1 values(0, 0), (300, 300); insert into t2 values(0, 10), (1, 20), (2, 30); commit; set autocommit=0; select * from t2; update t2 set a=100 where b=(SELECT x from t1 where id = b FOR UPDATE); select * from t2; select * from t1; --echo # Switch to connection con2 connection con2; set autocommit=0; # The following query should hang because con1 is locking the record --send update t1 set x=2 where id = 0; --sleep 2 --echo # Switch to connection con1 connection con1; update t1 set x=1 where id = 0; select * from t1; commit; --echo # Switch to connection con2 connection con2; reap; commit; --echo # Switch to connection con1 connection con1; select * from t1; commit; drop table t1, t2; eval create table t1 (id integer, x integer) engine = $engine_type; eval create table t2 (b integer, a integer) engine = $engine_type; insert into t1 values(0, 0), (300, 300); insert into t2 values(0, 0), (1, 20), (2, 30); commit; --echo # Switch to connection con1 connection con1; select a,b from t2 UNION SELECT id, x from t1 FOR UPDATE; select * from t2; select * from t1; --echo # Switch to connection con2 connection con2; # The following query should hang because con1 is locking the record update t2 set a=2 where b = 0; select * from t2; --send update t1 set x=2 where id = 0; --sleep 2 --echo # Switch to connection con1 connection con1; update t1 set x=1 where id = 0; select * from t1; commit; --echo # Switch to connection con2 connection con2; reap; commit; --echo # Switch to connection con1 connection con1; select * from t1; commit; # Cleanup --echo # Switch to connection default + disconnect con1 and con2 connection default; disconnect con1; disconnect con2; drop table t1, t2; --echo End of 4.1 tests # # Bug#25164 create table `a` as select * from `A` hangs # set default_storage_engine=innodb; --disable_warnings drop table if exists a; drop table if exists A; --enable_warnings create table A (c int); insert into A (c) values (0); --error 0,ER_LOCK_DEADLOCK,ER_TABLE_EXISTS_ERROR create table a as select * from A; drop table A; --disable_warnings drop table if exists a; --enable_warnings set default_storage_engine=default; --echo End of 5.0 tests.