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fixed cyclic reference bug

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This commit is contained in:
bell@sanja.is.com.ua
2002-11-14 00:26:18 +02:00
parent 9ef972fd2c
commit 41d9311621
39 changed files with 250 additions and 40 deletions
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4
mysql-test/r/subselect.result
View File

@ -8,6 +8,8 @@ SELECT (SELECT 1) UNION SELECT (SELECT 2);
SELECT (SELECT (SELECT 0 UNION SELECT 0));
(SELECT (SELECT 0 UNION SELECT 0))
0
SELECT (SELECT 1 FROM (SELECT 1) HAVING a=1) as a;
Cyclic reference on subqueries
drop table if exists t1,t2,t3,t4,t5,attend,clinic,inscrit;
create table t1 (a int);
create table t2 (a int, b int);
@ -46,7 +48,7 @@ a b
1 7
2 7
3 8
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a);
a b
1 7

4
mysql-test/t/subselect.test
View File

@ -1,6 +1,8 @@
select (select 2);
SELECT (SELECT 1) UNION SELECT (SELECT 2);
SELECT (SELECT (SELECT 0 UNION SELECT 0));
-- error 1243
SELECT (SELECT 1 FROM (SELECT 1) HAVING a=1) as a;
drop table if exists t1,t2,t3,t4,t5,attend,clinic,inscrit;
create table t1 (a int);
create table t2 (a int, b int);
@ -18,7 +20,7 @@ insert into t3 values (6),(7),(3);
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1);
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
union (select * from t4 order by a limit 2) limit 3;
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a);
explain select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)
union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a);