davidm-db commented on code in PR #48795:
URL: https://github.com/apache/spark/pull/48795#discussion_r1834083008
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/ParserUtils.scala:
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@@ -134,3 +139,87 @@ object ParserUtils extends SparkParserUtils {
sb.toString()
}
}
+
+object LabelUtils {
Review Comment:
This crossed my mind yesterday, but we weren't sure. If that's the case,
then you are right - I would say we just need to make `seenLabels` thread local
because that's the only state required to track the labels.
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