johanl-db commented on code in PR #38400:
URL: https://github.com/apache/spark/pull/38400#discussion_r1008270419
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
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@@ -451,7 +451,22 @@ class AstBuilder extends SqlBaseParserBaseVisitor[AnyRef]
with SQLConfHelper wit
}
}
}
- if (matchedActions.isEmpty && notMatchedActions.isEmpty) {
+ val notMatchedBySourceActions = ctx.notMatchedBySourceClause().asScala.map
{
+ clause => {
+ val notMatchedBySourceAction = clause.notMatchedBySourceAction()
+ if (notMatchedBySourceAction.DELETE() != null) {
+ DeleteAction(Option(clause.notMatchedBySourceCond).map(expression))
+ } else if (notMatchedBySourceAction.UPDATE() != null) {
+ val condition = Option(clause.notMatchedBySourceCond).map(expression)
+ UpdateAction(condition,
+
withAssignments(clause.notMatchedBySourceAction().assignmentList()))
+ } else {
+ // It should not be here.
+ throw
QueryParsingErrors.unrecognizedNotMatchedBySourceActionError(clause)
Review Comment:
Parsing will fail if a user tries to use an invalid action. We don't cover
this error in tests since it can't surface unless there's a bug. I replaced it
(and similar error for matched / not matched) with internal errors.
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