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https://issues.apache.org/jira/browse/SOLR-13890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17007737#comment-17007737
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Joel Bernstein edited comment on SOLR-13890 at 1/3/20 8:11 PM:
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If we auto-default cache=false then I'm fine with moving forward with the top
level docvalues / TPI approach. Let's just give the users a terms query thats
fast and works well with a *large number of terms*, *larger indexes, large
number of filters* in a *frequently indexing environment.* These goals cannot
be achieved with the current filter cache. So let's turn it off by default for
this implementation.
Then let's get a segment level filter cache in place.
was (Author: joel.bernstein):
If we auto-default cache=false then I'm fine with moving the top level
docvalues / TPI approach. Let's just give the users a terms query thats fast
and works well with a *large number of terms*, *larger indexes, large number of
filters* in a *frequently indexing environment.* These goals cannot be achieved
with the current filter cache. So let's turn it off by default for this
implementation.
Then let's get a segment level filter cache in place.
> Add postfilter support to {!terms} queries
> ------------------------------------------
>
> Key: SOLR-13890
> URL: https://issues.apache.org/jira/browse/SOLR-13890
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: query parsers
> Affects Versions: master (9.0)
> Reporter: Jason Gerlowski
> Assignee: Jason Gerlowski
> Priority: Major
> Attachments: SOLR-13890.patch, SOLR-13890.patch, SOLR-13890.patch,
> SOLR-13890.patch, Screen Shot 2020-01-02 at 2.25.12 PM.png,
> post_optimize_performance.png
>
>
> There are some use-cases where it'd be nice if the "terms" qparser created a
> query that could be run as a postfilter. Particularly, when users are
> checking for hundreds or thousands of terms, a postfilter implementation can
> be more performant than the standard processing.
> WIth this issue, I'd like to propose a post-filter implementation for the
> {{docValuesTermsFilter}} "method". Postfilter creation can use a
> SortedSetDocValues object to populate a DV bitset with the "terms" being
> checked for. Each document run through the post-filter can look at their
> doc-values for the field in question and check them efficiently against the
> constructed bitset.
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