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Fixed rare bug in MYISAM introduced in 4.0.3 where the index file header was not updated directly after an UPDATE of split dynamic rows.

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monty@mashka.mysql.fi
2003-09-05 06:42:55 +03:00
parent b64d6a0310
commit 75b2c4a62f
5 changed files with 90 additions and 13 deletions
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22
mysql-test/r/myisam.result
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@ -364,3 +364,25 @@ explain select * from t1 force index (a) where a=0 or a=2;
table type possible_keys key key_len ref rows Extra
t1 range a a 4 NULL 4 Using where
drop table t1,t2;
create table t1 (a int not null auto_increment primary key, b varchar(255));
insert into t1 (b) values (repeat('a',100)),(repeat('b',100)),(repeat('c',100));
update t1 set b=repeat(left(b,1),200) where a=1;
delete from t1 where (a & 1)= 0;
update t1 set b=repeat('e',200) where a=1;
flush tables;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
update t1 set b=repeat(left(b,1),255) where a between 1 and 5;
update t1 set b=repeat(left(b,1),10) where a between 32 and 43;
update t1 set b=repeat(left(b,1),2) where a between 64 and 66;
update t1 set b=repeat(left(b,1),65) where a between 67 and 70;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
insert into t1 (b) values (repeat('z',100));
update t1 set b="test" where left(b,1) > 'n';
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
drop table t1;