[
https://issues.apache.org/jira/browse/LUCENE-7677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Adrien Grand resolved LUCENE-7677.
----------------------------------
Resolution: Fixed
Fix Version/s: 6.5
master (7.0)
> Cache compound filters earlier than regular queries
> ---------------------------------------------------
>
> Key: LUCENE-7677
> URL: https://issues.apache.org/jira/browse/LUCENE-7677
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: master (7.0), 6.5
>
> Attachments: LUCENE-7677.patch
>
>
> Say you keep reusing a boolean filter that looks like "A OR B" and never use
> the A and B queries out of that boolean query. Currently, after this filter
> has been used 5 times, we would cache both A, B and "A OR B", which means
> that cache entries for A and B would only be built for the purpose of
> building a cache entry for "A OR B", which is wasteful.
> By caching compound queries a bit earlier, we could make it less likely to
> happen since:
> - we only consider queries as consumed if a scorer is pulled
> - once the boolean query is cached, we stop pulling scorers on the A and B
> queries
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
