In current code of EnumerableTableScan, methods of equals and hashCode are overridden for matching of {{EnumerableTableScan}}s.
While after optimizing with the same HEP planner, {{EnumerableTableScan}}s from two plans but with the same digest will the share the same Java object. See RelOptMaterializations.
I think it's ok to remove the redundant overriding methods in EnumerableTableScan.
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CALCITE-3447 Fix equivalents in method SubstitutionVisitor#go
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- Open
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CALCITE-1216 Add new rules for Materialised view optimisation of join queries
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- Closed
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- links to
