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Posted to dev@openjpa.apache.org by "Michael Dick (JIRA)" <ji...@apache.org> on 2009/10/21 18:11:01 UTC
[jira] Assigned: (OPENJPA-1308) shouldn't always use CAST with
UPPER and LOWER for DB2
[ https://issues.apache.org/jira/browse/OPENJPA-1308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dick reassigned OPENJPA-1308:
-------------------------------------
Assignee: Michael Dick
> shouldn't always use CAST with UPPER and LOWER for DB2
> ------------------------------------------------------
>
> Key: OPENJPA-1308
> URL: https://issues.apache.org/jira/browse/OPENJPA-1308
> Project: OpenJPA
> Issue Type: Improvement
> Components: sql
> Affects Versions: 1.0.3, 1.2.1, 2.0.0-M2
> Environment: DB2
> Reporter: B.J. Reed
> Assignee: Michael Dick
> Priority: Minor
> Fix For: 1.0.4, 1.2.2, 2.0.0
>
> Attachments: OPENJPA-1308-1.0.x.patch, OPENJPA-1308-1.2.x.patch, OPENJPA-1308-trunk.patch
>
>
> Using DB2, when a user uses the UPPER or LOWER function, the field is automatically CAST to a varchar. It would be nice if OpenJPA were a little smarter and only used CAST when necessary. Using the CAST causes any indexes not to be used so performance won't be what it should.
> I saw some other DB2 functions that also are always CAST, so we may need to improve these also.
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