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-- source include/not_embedded.inc -- source include/have_innodb.inc --disable_warnings drop table if exists t1; --enable_warnings # basic tests of semi-consistent reads connect (a,localhost,root,,); connect (b,localhost,root,,); connection a; set binlog_format=mixed; set session transaction isolation level repeatable read; create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1; insert into t1 values (1),(2),(3),(4),(5),(6),(7); set autocommit=0; # this should lock the entire table select * from t1 where a=3 lock in share mode; connection b; set binlog_format=mixed; set session transaction isolation level repeatable read; set autocommit=0; -- error ER_LOCK_WAIT_TIMEOUT update t1 set a=10 where a=5; commit; connection a; commit; connection b; # perform a semi-consisent read (and unlock non-matching rows) set session transaction isolation level read committed; update t1 set a=10 where a=5; connection a; -- error ER_LOCK_WAIT_TIMEOUT select * from t1 where a=2 for update; # this should lock the records (1),(2) select * from t1 where a=2 limit 1 for update; connection b; # semi-consistent read will skip non-matching locked rows a=1, a=2 update t1 set a=11 where a=6; -- error ER_LOCK_WAIT_TIMEOUT update t1 set a=12 where a=2; -- error ER_LOCK_WAIT_TIMEOUT update t1 set a=13 where a=1; connection a; commit; connection b; update t1 set a=14 where a=1; commit; connection a; select * from t1; drop table t1; connection default; disconnect a; disconnect b; # Bug 39320 create table t1 (a int, b int) engine=myisam; create table t2 (c int, d int, key (c)) engine=innodb; insert into t1 values (1,1); insert into t2 values (1,2); connect (a,localhost,root,,); connection a; set session transaction isolation level read committed; delete from t1 using t1 join t2 on t1.a = t2.c where t2.d in (1); connection default; disconnect a; drop table t1, t2;