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Fix for Bug #18184 SELECT ... FOR UPDATE does not work..: implemented ha_ndblcuster::unlock_row() and explicitly lock all rows that are not being unlocked

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unknown
2006-06-08 16:12:38 +02:00
parent 22e3b0c66f
commit 20e54ae6c5
10 changed files with 269 additions and 26 deletions
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59
mysql-test/r/ndb_lock.result
View File

@ -63,3 +63,62 @@ pk u o
5 5 5
insert into t1 values (1,1,1);
drop table t1;
create table t1 (x integer not null primary key, y varchar(32)) engine = ndb;
insert into t1 values (1,'one'), (2,'two'),(3,"three");
begin;
select * from t1 where x = 1 for update;
x y
1 one
begin;
select * from t1 where x = 2 for update;
x y
2 two
select * from t1 where x = 1 for update;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
rollback;
commit;
begin;
select * from t1 where y = 'one' or y = 'three' for update;
x y
3 three
1 one
begin;
select * from t1 where x = 2 for update;
x y
2 two
select * from t1 where x = 1 for update;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
rollback;
commit;
begin;
select * from t1 where x = 1 lock in share mode;
x y
1 one
begin;
select * from t1 where x = 1 lock in share mode;
x y
1 one
select * from t1 where x = 2 for update;
x y
2 two
select * from t1 where x = 1 for update;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
rollback;
commit;
begin;
select * from t1 where y = 'one' or y = 'three' lock in share mode;
x y
3 three
1 one
begin;
select * from t1 where y = 'one' lock in share mode;
x y
1 one
select * from t1 where x = 2 for update;
x y
2 two
select * from t1 where x = 1 for update;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
rollback;
commit;
drop table t1;

76
mysql-test/t/ndb_lock.test
View File

@ -69,4 +69,80 @@ insert into t1 values (1,1,1);
drop table t1;
# Lock for update
create table t1 (x integer not null primary key, y varchar(32)) engine = ndb;
insert into t1 values (1,'one'), (2,'two'),(3,"three");
# PK access
connection con1;
begin;
select * from t1 where x = 1 for update;
connection con2;
begin;
select * from t1 where x = 2 for update;
--error 1205
select * from t1 where x = 1 for update;
rollback;
connection con1;
commit;
# scan
connection con1;
begin;
select * from t1 where y = 'one' or y = 'three' for update;
connection con2;
begin;
# Have to check with pk access here since scans take locks on
# all rows and then release them in chunks
select * from t1 where x = 2 for update;
--error 1205
select * from t1 where x = 1 for update;
rollback;
connection con1;
commit;
# share locking
# PK access
connection con1;
begin;
select * from t1 where x = 1 lock in share mode;
connection con2;
begin;
select * from t1 where x = 1 lock in share mode;
select * from t1 where x = 2 for update;
--error 1205
select * from t1 where x = 1 for update;
rollback;
connection con1;
commit;
# scan
connection con1;
begin;
select * from t1 where y = 'one' or y = 'three' lock in share mode;
connection con2;
begin;
select * from t1 where y = 'one' lock in share mode;
# Have to check with pk access here since scans take locks on
# all rows and then release them in chunks
select * from t1 where x = 2 for update;
--error 1205
select * from t1 where x = 1 for update;
rollback;
connection con1;
commit;
drop table t1;
# End of 4.1 tests