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https://issues.apache.org/jira/browse/DERBY-534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-534:
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Attachment: derby-534-05-a-generated-cols.diff
derby-534-05-a-generated-cols.diff makes CreateTriggerNode raise an error if it
finds that the WHEN clause of a BEFORE trigger contains a reference to a
generated column in the NEW transition variable. It implements the check by
reusing the code added in DERBY-3948. The patch also adds tests.
All regression tests ran cleanly.
> Support use of the WHEN clause in CREATE TRIGGER statements
> -----------------------------------------------------------
>
> Key: DERBY-534
> URL: https://issues.apache.org/jira/browse/DERBY-534
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Kristian Waagan
> Assignee: Knut Anders Hatlen
> Priority: Minor
> Labels: derby_triage10_11
> Attachments: derby-534-01-a-syntax.diff,
> derby-534-02-a-refactor.diff, derby-534-03-a-npe-testcase.diff,
> derby-534-04-a-referencing.diff, derby-534-05-a-generated-cols.diff,
> parser.diff, WhenClause.html, WhenClause.html, WhenClause.html
>
>
> Support use of the WHEN clause in CREATE TRIGGER statements. The clause is
> described in the SQL standard (2003) in chapter "11.39 <trigger definition>"
> under "<triggered action>".
> There are traces in the code that suggests some work has been done on this
> earlier. If anyone knows something about this, please add a comment to this
> issue.
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