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Posted to derby-dev@db.apache.org by "Manjula Kutty (JIRA)" <de...@db.apache.org> on 2006/04/26 21:21:05 UTC

[jira] Created: (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

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
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         Key: DERBY-1257
         URL: http://issues.apache.org/jira/browse/DERBY-1257
     Project: Derby
        Type: Improvement

  Components: Performance  
    Versions: 10.2.0.0    
    Reporter: Manjula Kutty
    Priority: Minor
     Fix For: 10.2.0.0


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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[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

Posted by "Dag H. Wanvik (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik updated DERBY-1257:
---------------------------------

    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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[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

Posted by "Dag H. Wanvik (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik updated DERBY-1257:
---------------------------------

    Derby Categories: [Performance]

> 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
>    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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[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

Posted by "Kathey Marsden (JIRA)" <de...@db.apache.org>.
     [ http://issues.apache.org/jira/browse/DERBY-1257?page=all ]

Kathey Marsden updated DERBY-1257:
----------------------------------

    Fix Version/s: 10.3.0.0
                       (was: 10.2.0.0)

Since this remains unassigned I don't think it reasonable to think someone will pick it up and fix it for 10.2.  Looks like a high value fix for 10.3 though.
Changing to 10.3

> 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: http://issues.apache.org/jira/browse/DERBY-1257
>             Project: Derby
>          Issue Type: Improvement
>          Components: Performance
>    Affects Versions: 10.2.0.0
>            Reporter: Manjula Kutty
>            Priority: Minor
>             Fix For: 10.3.0.0
>
>
> 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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