itholic commented on code in PR #38576:
URL: https://github.com/apache/spark/pull/38576#discussion_r1046656452
##########
core/src/main/resources/error/error-classes.json:
##########
@@ -1443,6 +1443,11 @@
"A correlated outer name reference within a subquery expression body
was not found in the enclosing query: <value>"
]
},
+ "CORRELATED_REFERENCE" : {
+ "message" : [
+ "Expressions <sqlExprs> referencing the outer query are not
supported outside of WHERE/HAVING clauses."
Review Comment:
Yes, it really returns a set of expressions separated by `,`
In `CheckAnalysis.scala`, we make the returning `sqlExprs`:
```scala
messageParameters = Map("sqlExprs" -> exprs.map(toSQLExpr).mkString(",")))
```
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