cloud-fan commented on code in PR #47301:
URL: https://github.com/apache/spark/pull/47301#discussion_r1687307759
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/interface.scala:
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@@ -209,10 +221,26 @@ object ClusterBySpec {
normalizeClusterBySpec(schema, clusterBySpec, resolver).toJson
}
+ /**
+ * Converts a ClusterBySpec to a map of table properties used to store the
clustering
Review Comment:
I'm confused, why do we prefer a map with only one entry over a single
tuple2 like `toProperty` does?
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