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Posted to derby-dev@db.apache.org by "Knut Anders Hatlen (JIRA)" <ji...@apache.org> on 2009/10/05 17:40:31 UTC
[jira] Commented: (DERBY-4380) SOME not allowed in ON clause
[ https://issues.apache.org/jira/browse/DERBY-4380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762218#action_12762218 ]
Knut Anders Hatlen commented on DERBY-4380:
-------------------------------------------
Here's a stripped down repro for the NPEs seen in the lojreorder test with the patch:
ij> create table t(x int);
0 rows inserted/updated/deleted
ij> insert into t values 1;
1 row inserted/updated/deleted
ij> select * from t t1 right join t t2 on 1=1 and t1.x in (select a.x from t a left join t b on 1=0 where a.x=b.x);
X |X
-----------------------
ERROR 38000: The exception 'java.lang.NullPointerException' was thrown while evaluating an expression.
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
ij> select * from t t1 right join t t2 on 1=1 and t1.x >= ALL (select a.x from t a left join t b on 1=0 where a.x=b.x);
X |X
-----------------------
ERROR 38000: The exception 'java.lang.NullPointerException' was thrown while evaluating an expression.
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
> SOME not allowed in ON clause
> -----------------------------
>
> Key: DERBY-4380
> URL: https://issues.apache.org/jira/browse/DERBY-4380
> Project: Derby
> Issue Type: Bug
> Components: Store
> Reporter: Bernt M. Johnsen
> Attachments: on_subquery.diff
>
>
> SOME is not allowed in ON-clause:
> ij> create table t1 (i integer);
> 0 rows inserted/updated/deleted
> ij> create table t2 (i integer);
> 0 rows inserted/updated/deleted
> ij> create table t3 (i integer);
> 0 rows inserted/updated/deleted
> ij> insert into t1 values (1);
> 1 row inserted/updated/deleted
> ij> insert into t2 values (2);
> 1 row inserted/updated/deleted
> ij> insert into t3 values 2,3,4;
> 3 rows inserted/updated/deleted
> ij> select * from t1 where t1.i = some (select i from t3);
> I
> -----------
> 0 rows selected
> ij> select * from t1 inner join t2 on t1.i = some (select i from t3);
> ERROR 42972: An ON clause associated with a JOIN operator is not valid.
> ij>
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