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https://issues.apache.org/jira/browse/DERBY-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dag H. Wanvik updated DERBY-1257:
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Component/s: SQL
> Enhance Derby optimizer and execution model to support effective use of
> multiple indexes on one table. Derby currently can use one index on a table
> and there are many situations where using multiple indexes on a table could
> improve performance significant
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-1257
> URL: https://issues.apache.org/jira/browse/DERBY-1257
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.2.1.6
> Reporter: Manjula Kutty
> Priority: Minor
>
> Enhance Derby optimizer and execution model to support effective use of
> multiple indexes on one table. Derby currently can use one index on a table
> and there are many situations where using multiple indexes on a table could
> improve performance significantly. Please see the discussion at
> http://article.gmane.org/gmane.comp.apache.db.derby.devel/16099
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