jin xing created CALCITE-3167:
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Summary: Remove redundant overriding methods of equals&hashcode in
EnumerableTableScan.java
Key: CALCITE-3167
URL: https://issues.apache.org/jira/browse/CALCITE-3167
Project: Calcite
Issue Type: Improvement
Components: core
Affects Versions: 1.19.0
Reporter: jin xing
In current code of EnumerableTableScan.java, methods of equals&hashCode are
overrided for matching of EnumerableTableScans.
But after optimizing with the same HEP planner, EnumerableTableScans from two
plans but with the same digest will the share the same Java object.
https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/plan/RelOptMaterializations.java#L192
I think it's ok to remove the redundant overriding methods in
EnumerableTableScan.java
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