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https://issues.apache.org/jira/browse/PHOENIX-7886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved PHOENIX-7886.
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Resolution: Fixed
> Server filter and projection EXPLAIN output improvements
> --------------------------------------------------------
>
> Key: PHOENIX-7886
> URL: https://issues.apache.org/jira/browse/PHOENIX-7886
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Andrew Kyle Purtell
> Assignee: Andrew Kyle Purtell
> Priority: Major
> Fix For: PHOENIX-7876-feature
>
>
> Split the conflated {{SERVER FILTER BY FIRST KEY ONLY AND <expr>}} line and
> rename the projection optimization lines to {{SERVER PROJECTION FILTER BY
> FIRST KEY ONLY}} and {{{}... EMPTY COLUMN ONLY{}}}, each followed when a
> value predicate exists by a separate {{SERVER FILTER BY <expr>}} line for
> each predicate. {{ExplainPlanAttributes}} narrows {{serverWhereFilter}} to
> the bare predicate and adds {{serverFirstKeyOnlyProjection}} andÂ
> {{serverEmptyColumnOnlyProjection}} booleans, with matching
> {{ExplainPlanTestUtil}} fluent assertion getters, setters, and testers.
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