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Posted to oak-issues@jackrabbit.apache.org by "Przemo Pakulski (JIRA)" <ji...@apache.org> on 2015/04/15 17:58:58 UTC
[jira] [Updated] (OAK-2777) Minimize the cost calculation for
queries using reference restrictions.
[ https://issues.apache.org/jira/browse/OAK-2777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Przemo Pakulski updated OAK-2777:
---------------------------------
Description:
According to the javadocs (QueryIndex) minimum cost for index is 1. Currently ReferenceIndex returns this minimum value, when it can be used for the query.
But even then cost for remaining indexes is still calculated. We could skip cost calculation of remaining indexes if we achieved the minimum cost already.
It will speed up all queries which can leverage the reference Index.
Example query:
SELECT * FROM [nt:base] WHERE PROPERTY([rep:members], 'WeakReference') = '345bef9b-ffa1-3e09-85df-1e03cfa0fb37'
was:
According to the javadocs (QueryIndex) minimum cost for index is 1. Currently ReferenceIndex returns this minimum value, when it can be used for the query.
But even than remaining indexes are still calculated. We could skip cost calculation of remaining indexes if we achieved the minimum cost already.
It will speed up all queries which can leverage the reference Index.
Example query:
SELECT * FROM [nt:base] WHERE PROPERTY([rep:members], 'WeakReference') = '345bef9b-ffa1-3e09-85df-1e03cfa0fb37'
> Minimize the cost calculation for queries using reference restrictions.
> -----------------------------------------------------------------------
>
> Key: OAK-2777
> URL: https://issues.apache.org/jira/browse/OAK-2777
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.1.2, 1.2
> Reporter: Przemo Pakulski
>
> According to the javadocs (QueryIndex) minimum cost for index is 1. Currently ReferenceIndex returns this minimum value, when it can be used for the query.
> But even then cost for remaining indexes is still calculated. We could skip cost calculation of remaining indexes if we achieved the minimum cost already.
> It will speed up all queries which can leverage the reference Index.
> Example query:
> SELECT * FROM [nt:base] WHERE PROPERTY([rep:members], 'WeakReference') = '345bef9b-ffa1-3e09-85df-1e03cfa0fb37'
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