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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6454) DROP TABLE documentation could clarify how triggers are handled
Date Mon, 10 Feb 2014 16:36:20 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13896741#comment-13896741

Knut Anders Hatlen commented on DERBY-6454:

Also, the behaviour is different on 10.10, so I don't think it should be backported without

> DROP TABLE documentation could clarify how triggers are handled
> ---------------------------------------------------------------
>                 Key: DERBY-6454
>                 URL: https://issues.apache.org/jira/browse/DERBY-6454
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions:
>            Reporter: Dyre Tjeldvoll
>            Assignee: Kim Haase
>            Priority: Minor
>             Fix For:
>         Attachments: DERBY-6454-2.diff, DERBY-6454.diff, rrefsqlj34148.html, rrefsqlj34148.html
> The description of the DROP TABLE command first asserts that
> "Triggers, constraints (primary, unique, check and references from the table being dropped)
and indexes on the table are silently dropped. "
> And then
> "The DROP TABLE statement will also generate an error if the table is used in a view
or trigger."
> This is perfectly correct, but I think it would have been easier to grasp if the text
had spelled out that triggers which are defined on the table being dropped are dropped automatically,
but that the existence of triggers which reference the table being dropped in their trigger
action will cause an error.

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