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https://issues.apache.org/jira/browse/CALCITE-3167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-3167:
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Summary: Remove overriding equals and hashCode methods in
EnumerableTableScan (was: Remove redundant overriding methods of
equals&hashcode in EnumerableTableScan.java)
> Remove overriding equals and hashCode methods in EnumerableTableScan
> --------------------------------------------------------------------
>
> 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
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In current code of EnumerableTableScan.java, methods of equals&hashCode are
> overrided for matching of EnumerableTableScans.
> While 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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