amaliujia commented on code in PR #38166:
URL: https://github.com/apache/spark/pull/38166#discussion_r990933157
##########
connector/connect/src/main/protobuf/spark/connect/relations.proto:
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@@ -107,15 +107,17 @@ message Join {
}
}
-// Relation of type [[Union]], at least one input must be set.
-message Union {
+// Relation of type [[SetOperation]]
+message SetOperation {
Review Comment:
Yeah IIRC `intersect` and `except` supports `all` or `not all` while `union`
does not care. In this case separate plans might be better to different their
fields. cc @grundprinzip
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