aokolnychyi commented on code in PR #40919:
URL: https://github.com/apache/spark/pull/40919#discussion_r1174635165
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -1818,7 +1818,10 @@ class Analyzer(override val catalogManager:
CatalogManager) extends RuleExecutor
"sqlExpr" -> a.sql,
"cols" -> cols))
}
- resolved
+ resolved match {
Review Comment:
Without this change, nested references in MERGE are resolved as
`t.struct_col.id AS id`, which breaks our assumption about what kind of keys we
expect in assignments. It seems safe for both keys and values but let me know
if there are any cases when it is not safe.
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