yashlimbad commented on code in PR #4840:
URL: https://github.com/apache/calcite/pull/4840#discussion_r3084154476
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core/src/main/java/org/apache/calcite/plan/RelOptUtil.java:
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@@ -4678,12 +4735,24 @@ public RexCorrelVariableMapShuttle(final CorrelationId
correlationId,
public static class InputFinder extends RexVisitorImpl<Void> {
private final ImmutableBitSet.Builder bitBuilder;
private final @Nullable Set<RelDataTypeField> extraFields;
+ /** Correlation ids that are considered "local" when analysing
+ * sub-queries: only these contribute bits via {@link #visitSubQuery}.
+ * If null, all correlation ids encountered inside a sub-query
Review Comment:
okay
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