Current File : /home/rs/mysql/5.1/mysql-test/suite/ndb/t/ndb_update_no_read.test
-- source include/have_ndb.inc
-- source include/not_embedded.inc
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
#
# New test case for WL 3686 (which is not until CGE-6.3)
# but test is committed in 5.1 to verify consistant results.
#
# When only constant expressions in update statements and
# only PK or UK in WHERE clause. No extra WHERE parts are
# allowed. WL #3687 takes of more advanced variants of
# avoiding the read before the update/delete
create table t1 (a int not null primary key, b int not null, c int,
unique index_b (b) using hash)
engine ndb;
insert into t1 values (1,10,1),(2,9,1),(3,8,1),(4,7,1),(5,6,1),(6,5,2),(7,4,2),(8,3,2),
(9,2,2),(10,1,2);
# These ones should use optimisation
update t1 set c = 111, b = 20 where a = 1;
select * from t1 where a = 1 order by a;
delete from t1 where a = 1;
select * from t1 where a = 1 order by a;
update t1 set c = 12, b = 19 where b = 2;
select * from t1 where b = 2 order by a;
delete from t1 where b = 19;
select * from t1 where b = 19 order by a;
update t1 set c = 22 where a = 10 or a >= 10;
select * from t1 order by a;
update t1 set c = 23 where a in (8,10);
select * from t1 order by a;
update t1 set c = 23 where a in (7,8) or a >= 10;
select * from t1 order by a;
# These ones should not use optimisation
update t1 set c = 11 where a = 3 or b = 7;
select * from t1 where a = 3 or b = 7 order by a;
update t1 set a = 13, b = 20 where a = 3;
select * from t1 where a = 13 order by a;
update t1 set a = 12, b = 19 where b = 7;
select * from t1 where b = 19 order by a;
select * from t1 where b = 7 order by a;
update t1 set c = 12, b = 29 where a = 5 and b = 6;
select * from t1 where b = 19 order by a;
delete from t1 where b = 6 and c = 12;
select * from t1 where b = 6 order by a;
drop table t1;
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