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Fixed multi-table-delete

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Optimize fixed length MyISAM rows to use pread/pwrite.
This commit is contained in:
monty@hundin.mysql.fi
2001-06-15 05:03:15 +03:00
parent 595d087e05
commit a06f391e7a
16 changed files with 728 additions and 487 deletions
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10
mysql-test/r/multi_update.result
View File

@ -1,21 +1,11 @@
id1 t
1 3
2 2
3 1
id2 t
3 3
3 2
3 1
2 3
2 2
2 1
1 3
1 2
1 1
id3 t
3 3
3 2
3 1
2 3
2 2
2 1

9
mysql-test/t/multi_update.test
View File

@ -16,10 +16,11 @@ while ($1)
dec $1;
}
delete t1.*,t2.* from t1,t2 where t1.id1 = t2.id2 and t1.id1 = 3;
delete t3 from t3 left join t1 on (id1=id3) where t1.id1 is null;
delete t2 from t1,t2,t3 where id1=id2 and id2=id3 and id1=2;
select * from t1;
select * from t2;
select * from t3;
delete from t1,t2 where t1.id = t2.id and t1.id = 3;
select * from t1;
select * from t2;
delete t1,t2 from t1,t2 where 1;
drop table t1,t2,t3;