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https://issues.apache.org/jira/browse/DIRSERVER-1049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRSERVER-1049:
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Fix Version/s: 2.0.0-RC1
(was: 2.0.0)
Moved back to 2.0.0-RC1
> [PERF] Speed improvement in Search operation
> --------------------------------------------
>
> Key: DIRSERVER-1049
> URL: https://issues.apache.org/jira/browse/DIRSERVER-1049
> Project: Directory ApacheDS
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.5.1
> Reporter: Emmanuel Lecharny
> Fix For: 2.0.0-RC1
>
>
> A search operation based on a single attribute, like (uid=user.123), should
> not pass through the optimizer at all, as we don't need to compute the number
> of entries.
> What we have now is that the search is built as a conjonction (AND) operation
> as if we have injected this filter :
> (& (objectclass =* ) (uid = user.123))
> The cost of doing such a count is not negligeable (5% of the overall
> operation)
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