NobiGo commented on code in PR #4066:
URL: https://github.com/apache/calcite/pull/4066#discussion_r1861392260


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core/src/main/java/org/apache/calcite/sql2rel/ConvertToChecked.java:
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@@ -50,13 +51,18 @@ public ConvertToChecked(RexBuilder builder) {
    * Visitor which rewrites an expression tree such that all
    * arithmetic operations that produce numeric values use checked arithmetic.
    */
-  static class ConvertRexToChecked extends RexShuttle {
+  class ConvertRexToChecked extends RexShuttle {
     private final RexBuilder builder;
 
     ConvertRexToChecked(RexBuilder builder) {
       this.builder = builder;
     }
 
+    @Override public RexNode visitSubQuery(RexSubQuery subQuery) {
+      RelNode result = subQuery.rel.accept(ConvertToChecked.this);

Review Comment:
   Can we add an SQL with a subquery to test this change?



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