yashlimbad commented on code in PR #4840:
URL: https://github.com/apache/calcite/pull/4840#discussion_r3084151393
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core/src/main/java/org/apache/calcite/plan/RelOptUtil.java:
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@@ -3000,6 +3025,38 @@ public static boolean classifyFilters(
return !filtersToRemove.isEmpty();
}
+ /**
+ * Returns whether {@code node} references any {@link CorrelationId} in
+ * {@code ids}, either directly via a {@link RexCorrelVariable} (typically
+ * reached through a {@link org.apache.calcite.rex.RexFieldAccess}) or
+ * transitively via the inner plan of a {@link RexSubQuery}.
+ */
+ private static boolean referencesAnyCorrelation(RexNode node,
Review Comment:
got it
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