Fix crash in explain with append info for ShareInputScan nodes.#1295
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avamingli merged 2 commits intoapache:mainfrom Aug 20, 2025
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Fix crash in explain with append info for ShareInputScan nodes.#1295avamingli merged 2 commits intoapache:mainfrom
avamingli merged 2 commits intoapache:mainfrom
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The issue occurs when ShareInputScan nodes are reused multiple times during explain with append info in deparse_context_for_plan_tree(). Address that by marking only the producer of ShareInputScan with the same share_id to prevent the crash. This ensures proper handling of shared scan nodes during plan tree deparsing. Authored-by: Zhang Mingli avamingli@gmail.com
This adds the complex TPC-DS Query 04 as a test case to verify a bug that caused crashes when gp_cte_sharing=on in the planner. The issue was difficult to reproduce with simpler queries, requiring the full complexity of TPC-DS Query 04 to properly manifest. The crash occurred during planning when CTE sharing was enabled. Adding this test will help prevent regression of this specific planner issue. While not a minimal reproduction case, the full query is necessary to reliably trigger the problematic behavior. Authored-by: Zhang Mingli avamingli@gmail.com
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Fix #1269
The issue occurs when ShareInputScan nodes are reused multiple times during explain with append info in deparse_context_for_plan_tree().
Address that by marking only the producer of ShareInputScan with the same share_id to prevent the crash.
This ensures proper handling of shared scan nodes during plan tree deparsing.
Authored-by: Zhang Mingli avamingli@gmail.com
Fixes #ISSUE_Number
What does this PR do?
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Breaking Changes
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make installcheckmake -C src/test installcheck-cbdb-parallelImpact
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