[CALCITE-3885] Restore trace logging for rules queue and Volcano planner's internal state #1886
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…ner's internal state (Roman Kondakov)
ritesh-kapoor
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Mar 31, 2020
…ner's internal state (Roman Kondakov) After fixing CALCITE-3753 the opportunity of tracing the rules queue and VolcanoPlanner search space state is disappeared: i.e. RuleQueue.dump() method was removed. We should restore this opportunity because it affects planner's debugging capabilities. Close apache#1886
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The patch is pretty simple: I've just added the logging of the rules queue and planner's internal state as it was before.
See https://issues.apache.org/jira/browse/CALCITE-3885