[SOLR-13890] Add postfilter support to {!terms} queries

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 9.0
• Fix Version/s: 8.5, 9.0
• Component/s: query parsers
• Assignee: Jason Gerlowski
• Reporter: Jason Gerlowski
• Created: 04/Nov/19 15:27
• Updated: 24/Mar/20 12:45
• Resolved: 02/Mar/20 16:39

Description

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.

Issue Links

• is related to: SOLR-14166 Use TwoPhaseIterator for non-cached filter queries
• links to: GitHub Pull Request #1151