Paul Guo created HAWQ-1214:
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Summary: 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: Lei Chang
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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