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Posted to derby-dev@db.apache.org by "Mamta A. Satoor (JIRA)" <ji...@apache.org> on 2013/06/25 16:56:22 UTC
[jira] [Updated] (DERBY-1257) 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
[ https://issues.apache.org/jira/browse/DERBY-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mamta A. Satoor updated DERBY-1257:
-----------------------------------
Urgency: Low
Labels: derby_triage10_11 (was: )
> 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
> Labels: derby_triage10_11
>
> 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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