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https://issues.apache.org/jira/browse/SOLR-15390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mayya Sharipova updated SOLR-15390:
-----------------------------------
Security: (was: Public)
> Deprecate "segmentTerminateEarly" in favor of "minExactCount"
> -------------------------------------------------------------
>
> Key: SOLR-15390
> URL: https://issues.apache.org/jira/browse/SOLR-15390
> Project: Solr
> Issue Type: Improvement
> Reporter: Tomas Eduardo Fernandez Lobbe
> Priority: Minor
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When
> [segmentTerminateEarly|https://solr.apache.org/guide/8_8/common-query-parameters.html#segmentterminateearly-parameter]
> is set to true in Solr queries and the index is sorted by the same field
> used for sorting the query, Solr can skip over documents once it has
> collected enough, saving some time at the cost of not having the exact
> document hit count.
> {{TopFieldCollector}} can also achieve this now, and can do it more
> efficiently, since it can keep track of the hits across segments too.
> {{EarlyTerminatingSortingCollector}} (the collector used when
> "segmentTerminateEarly" is set to true) has been deprecated from Lucene, and
> will eventually be removed, so we'll have the option of copying it to Solr,
> or get rid of the functionality. I think we should deprecate the
> functionality in favor of "minExactCount".
> If we want to keep the parameter, one thing we could also do is, when
> "segmentTerminateEarly" is set to true, internally set "minExactCount" to
> something low (0 should work) and get rid of the code using
> {{EarlyTerminatingSortingCollector}}, but I think we should just remove the
> parameter for a simpler API (maybe we do want to do this for back
> compatibility).
> I've ran some perf tests to validate and In all cases, minExactCount did
> equal or slightly better than segmentTerminateEarly in sorted indices
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