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https://issues.apache.org/jira/browse/HAWQ-1214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Guo reassigned HAWQ-1214:
------------------------------
Assignee: Paul Guo (was: Lei Chang)
> Remove resource_parameters in calculate_planner_segment_num()
> -------------------------------------------------------------
>
> Key: HAWQ-1214
> URL: https://issues.apache.org/jira/browse/HAWQ-1214
> Project: Apache HAWQ
> Issue Type: Bug
> Reporter: Paul Guo
> Assignee: Paul Guo
>
> The reasons are:
> 1) It is not used anymore.
> 2) Have seen crash due to this. The scenario is that:
>
> The datalocality memory context on which resource_parameters is palloc-ed is
> reset before calculate_planner_segment_num() finishes, thus later access to
> resource_parameters could lead to crash or wrong results. A code path example
> which could lead to segfault is:
> ProcessUtility()->PerformCursorOpen()->_copyPlannedStmt()->_copyQueryResourceParameters()
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