[CALCITE-3666] Refine RelMdColumnUniqueness and RelMdUniqueKeys for Calc#1718
Merged
vlsi merged 1 commit intoapache:masterfrom Jan 2, 2020
Merged
[CALCITE-3666] Refine RelMdColumnUniqueness and RelMdUniqueKeys for Calc#1718vlsi merged 1 commit intoapache:masterfrom
vlsi merged 1 commit intoapache:masterfrom
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https://issues.apache.org/jira/browse/CALCITE-3666
This is required for better join cardinality estimation when EnumerableCalc is involved