--disable_query_log set @@session.explicit_defaults_for_timestamp=off; --enable_query_log #owner: linlin.xll #owner group: SQL1 #description: #tags: dml, trx #show variables like 'ob_query_timeout'; --disable_warnings drop table if exists t1; --enable_warnings create table t1(pk int primary key, c1 int); insert into t1 values(1,1); connect (conn1,$OBMYSQL_MS0,$OBMYSQL_USR,$OBMYSQL_PWD,test,$OBMYSQL_PORT); connect (conn2,$OBMYSQL_MS0,$OBMYSQL_USR,$OBMYSQL_PWD,test,$OBMYSQL_PORT); connection conn1; begin; select * from t1 where pk=1 for update; update t1 set c1=c1+1 where pk=1; connection conn2; begin; send select * from t1 where t1.pk=1 for update; --real_sleep 2 connection conn1; commit; connection conn2; reap; update t1 set c1=c1+1 where pk=1; commit; select * from t1;