Chunhui Shi created CALCITE-1550:
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Summary: ConventionTraitDef.plannerConversionMap is not thread safe
Key: CALCITE-1550
URL: https://issues.apache.org/jira/browse/CALCITE-1550
Project: Calcite
Issue Type: Bug
Reporter: Chunhui Shi
Assignee: Julian Hyde
Priority: Critical
We are using static instance ConventionTraitDef.INSTANCE globally and
plannerConversionMap(class WeakHashMap) defined in ConventionTraitDef class is
not threadsafe. And the data in the map could corrupt and cause dead loop or
other data error.
private final WeakHashMap<RelOptPlanner, ConversionData>
plannerConversionMap =
new WeakHashMap<RelOptPlanner, ConversionData>();
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