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https://issues.apache.org/jira/browse/DERBY-4433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779791#action_12779791
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Dag H. Wanvik commented on DERBY-4433:
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Maybe we should work on DERBY-4442 instead, and most of these bugs seen with
INSERT into column subsets would go away.. The source result set enhancement
seems broken and I'd love to get rid of it..
> Cannot insert from EXCEPT/INTERSECT when target table has more columns than
> the source
> --------------------------------------------------------------------------------------
>
> Key: DERBY-4433
> URL: https://issues.apache.org/jira/browse/DERBY-4433
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.6.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Knut Anders Hatlen
> Attachments: prn.diff
>
>
> If an INSERT statement takes the rows to insert from an EXCEPT query or an
> INTERSECT query, the statement fails with "Column position 'X' out of range"
> if the target table contains more columns than the result returned from
> EXCEPT or INTERSECT.
> Example:
> ij> create table t (x int, y int);
> 0 rows inserted/updated/deleted
> ij> insert into t(x) select x from t except select x from t;
> ERROR 42X77: Column position '2' is out of range for the query expression.
> ij> insert into t(x) select x from t intersect select x from t;
> ERROR 42X77: Column position '2' is out of range for the query expression.
> The corresponding UNION query works:
> ij> insert into t(x) select x from t union select x from t;
> 0 rows inserted/updated/deleted
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