[jira] [Resolved] (PHOENIX-7927) Fix EXPLAIN plumbing related NPE in DelegateQueryPlan.setOptimizerDecision

["Andrew Kyle Purtell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-7927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell resolved PHOENIX-7927.
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    Resolution: Fixed

> Fix EXPLAIN plumbing related NPE in DelegateQueryPlan.setOptimizerDecision
> --------------------------------------------------------------------------
>
>                 Key: PHOENIX-7927
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-7927
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Andrew Kyle Purtell
>            Assignee: Andrew Kyle Purtell
>            Priority: Major
>             Fix For: PHOENIX-7876-feature
>
>
> NPE in setOptimizerDecision because the delegate is null, via TotalSegmentsFunctionIT. 
> {{getApplicablePlansForSingleFlatQuery}} can call {{recordDecision}} on a {{DelegateQueryPlan}} with a null delegate. {{ClientProcessingPlan}} overrides {{getContext()}} / {{getTableRef()}} / {{getProjector()}} to use local fields, so a null delegate is fine except for the two optimizer-decision accessors that DelegateQueryPlan is forwarding unconditionally. This is a regression from PHOENIX-7891 that breaks any query involving {{TOTAL_SEGMENTS}}.



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