tkhurana commented on code in PR #2239:
URL: https://github.com/apache/phoenix/pull/2239#discussion_r2241073413


##########
phoenix-core-client/src/main/java/org/apache/phoenix/compile/WhereOptimizer.java:
##########
@@ -1945,6 +1948,150 @@ public KeySlots visitLeave(InListExpression node, 
List<KeySlots> childParts) {
       return newKeyParts(childSlot, node, new ArrayList<KeyRange>(ranges));
     }
 
+    /**
+     * If {@link ArrayAnyComparisonExpression} is of the form:
+     *
+     * <pre>
+     * COL = ANY(ARR)
+     * </pre>
+     *
+     * then we can extract the scan ranges for the COL, given COL is a PK 
column. This syntactical
+     * pattern can be used as a replacement for a IN expression. So, instead 
of following IN
+     * expression:
+     *
+     * <pre>
+     * COL IN (VAL1, VAL2, ... VALN)

Review Comment:
   I don't think we can use this for RVC list like (COL1, COL2) IN ( 
(val11,val12), (val21, val22))



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