Github user petermaxlee commented on a diff in the pull request:
https://github.com/apache/spark/pull/14594#discussion_r74373149
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -547,8 +547,7 @@ class Analyzer(
case a: Aggregate if containsStar(a.aggregateExpressions) =>
if (conf.groupByOrdinal &&
a.groupingExpressions.exists(IntegerIndex.unapply(_).nonEmpty)) {
failAnalysis(
- "Group by position: star is not allowed to use in the select
list " +
- "when using ordinals in group by")
+ "Star (*) is not allowed in select list when GROUP BY ordinal
position is used")
--- End diff --
cc @cloud-fan / @gatorsmile do you know why star is not allowed here? I
checked Postgres does allow star.
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