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Posted to oak-issues@jackrabbit.apache.org by "Przemo Pakulski (JIRA)" <ji...@apache.org> on 2014/08/27 11:56:58 UTC
[jira] [Updated] (OAK-2056) Optimize orderings by date fields
[ https://issues.apache.org/jira/browse/OAK-2056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Przemo Pakulski updated OAK-2056:
---------------------------------
Summary: Optimize orderings by date fields (was: Optimize ordering by date fields)
> Optimize orderings by date fields
> ---------------------------------
>
> Key: OAK-2056
> URL: https://issues.apache.org/jira/browse/OAK-2056
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: query
> Affects Versions: 1.0.4
> Reporter: Przemo Pakulski
> Labels: performance
>
> Sorting by date fields is very slow in oak, especially if result set size is large.
> I'm running the following JCR-SQL2 query
> {code}
> SELECT * FROM [cq:PageContent] AS [c] WHERE ISDESCENDANTNODE('/content')
> {code}
> which returns 3270 results on my oak repo.
> Query execution times are as below
> ---------------------------------------
> No order clause | 0,147 sec
> ORDER BY [jcr:createdBy] | 1,018 sec
> ORDER BY [jcr:created] | 25,229 sec
> Ordering by date field adds extra 24 seconds overhead.
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