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https://issues.apache.org/jira/browse/SOLR-14166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17338547#comment-17338547
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David Smiley commented on SOLR-14166:
-------------------------------------
Right; I just noticed those docs are obsolete while I was working on sibling
issues. I will propose an update to the docs in a new PR.
I'll follow-up this week sometime with some more specific query examples. My
notes from a couple weeks ago are terrible :-(.
> Use TwoPhaseIterator for non-cached filter queries
> --------------------------------------------------
>
> Key: SOLR-14166
> URL: https://issues.apache.org/jira/browse/SOLR-14166
> Project: Solr
> Issue Type: Sub-task
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Fix For: main (9.0)
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> "fq" filter queries that have cache=false and which aren't processed as a
> PostFilter (thus either aren't a PostFilter or have a cost < 100) are
> processed in SolrIndexSearcher using a custom Filter thingy which uses a
> cost-ordered series of DocIdSetIterators. This is not TwoPhaseIterator
> aware, and thus the match() method may be called on docs that ideally would
> have been filtered by lower-cost filter queries.
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