[GitHub] [spark] MaxGekk commented on a diff in pull request #39061: [WIP][SPARK-41518][SQL] Assign a name to the error class `_LEGACY_ERROR_TEMP_2422`

[GitBox <gi...@apache.org>]

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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