yanlin-Lynn commented on a change in pull request #1531: [CALCITE-3447] Fix
equals and hashcode methods of class MutableScan
URL: https://github.com/apache/calcite/pull/1531#discussion_r339932142
##########
File path: core/src/main/java/org/apache/calcite/rel/mutable/MutableScan.java
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@@ -36,11 +36,11 @@ public static MutableScan of(TableScan scan) {
@Override public boolean equals(Object obj) {
return obj == this
|| obj instanceof MutableScan
- && rel.equals(((MutableScan) obj).rel);
+ && rel.getTable().equals(((MutableScan) obj).rel.getTable());
}
Review comment:
If we make `MaterializedViewSubstitutionVisitor` non public, do we still
need to update `hashCode` and `equals`, although it's harmless.
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