rubenada commented on code in PR #2789:
URL: https://github.com/apache/calcite/pull/2789#discussion_r944495271


##########
core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java:
##########
@@ -2335,11 +2335,7 @@ private SqlNode registerFrom(
       expr = call.operand(0);
       final boolean needAlias = call.operandCount() > 2
           || expr.getKind() == SqlKind.VALUES
-          || expr.getKind() == SqlKind.UNNEST
-          && (((SqlCall) expr).operand(0).getKind()
-                  == SqlKind.ARRAY_VALUE_CONSTRUCTOR
-              || ((SqlCall) expr).operand(0).getKind()
-                  == SqlKind.MULTISET_VALUE_CONSTRUCTOR);
+          || expr.getKind() == SqlKind.UNNEST;

Review Comment:
   @julianhyde sorry to ping you directly.
   I think this PR looks in a good shape, I was just wondering if you have any 
problem or concern about this particular change, which alters a condition that 
you explicitly added in 
[c2527cc](https://github.com/apache/calcite/commit/c2527ccf440f7750bfbabd2063c402440c5b32a0).
   If you don't have any objection, I think we should move forward and merge 
the patch, wdyt?



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