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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6690) ROW_NUMBER should not be allowed in generation clause
Date Wed, 06 Aug 2014 18:44:12 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088014#comment-14088014

Dag H. Wanvik commented on DERBY-6690:

Is this legal according to the standard (you say it is allowed..)?

> ROW_NUMBER should not be allowed in generation clause
> -----------------------------------------------------
>                 Key: DERBY-6690
>                 URL: https://issues.apache.org/jira/browse/DERBY-6690
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions:
>            Reporter: Knut Anders Hatlen
> The generation clause is allowed to have a call to the ROW_NUMBER function. But it fails
when a new row is inserted. It should be disallowed in CREATE TABLE and ALTER TABLE ADD COLUMN.
> {noformat}
> ij> create table t (x int generated always as (row_number() over ()));
> 0 rows inserted/updated/deleted
> ij> insert into t values default;
> ERROR XJ001: Java exception: 'ASSERT FAILED cannot get interface without operand: org.apache.derby.shared.common.sanity.AssertFailure'.
> {noformat}

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