SourabhBadhya commented on code in PR #5749:
URL: https://github.com/apache/hive/pull/5749#discussion_r2037756391
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ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java:
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@@ -3800,19 +3800,25 @@ private RelNode genGBLogicalPlan(QB qb, RelNode srcRel)
throws SemanticException
groupByOutputRowResolver.setIsExprResolver(true);
if (hasGrpByAstExprs) {
- // 4. Construct GB Keys (ExprNode)
- for (int i = 0; i < groupByNodes.size(); ++i) {
- ASTNode groupByNode = groupByNodes.get(i);
- Map<ASTNode, RexNode> astToRexNodeMap = genAllRexNode(
- groupByNode, groupByInputRowResolver, cluster.getRexBuilder());
- RexNode groupByExpression = astToRexNodeMap.get(groupByNode);
- if (groupByExpression == null) {
- throw new CalciteSemanticException("Invalid Column Reference: "
+ groupByNode.dump(),
- UnsupportedFeature.Invalid_column_reference);
- }
+ try {
+ groupByInputRowResolver.setCheckForAmbiguity(true);
+ // 4. Construct GB Keys (ExprNode)
+ for (int i = 0; i < groupByNodes.size(); ++i) {
Review Comment:
Can we use a non-indexed for loop?
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