MaxGekk commented on code in PR #39061:
URL: https://github.com/apache/spark/pull/39061#discussion_r1048703232
##########
core/src/main/resources/error/error-classes.json:
##########
@@ -496,6 +496,11 @@
],
"sqlState" : "42000"
},
+ "GROUPING_EXPRESSIONS_NOT_FOUND" : {
+ "message" : [
+ "Not found any GROUP BY expressions, and <sqlExpr> is not an aggregate
function. Wrap <aggExprs> by windowing function(s) or wrap <sqlExpr> by
`first()` (or `first_value()`) if you don't care which value you get."
+ ]
+ },
Review Comment:
> My money is on forgetting the GROUP BY clause....
Highly likely, you are right. Let me following your proposal.
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