viirya commented on a change in pull request #28133: [SPARK-31156][SQL]
DataFrameStatFunctions API to be consistent with respect to Column type
URL: https://github.com/apache/spark/pull/28133#discussion_r404531215
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/stat/FrequentItems.scala
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@@ -66,6 +68,19 @@ object FrequentItems extends Logging {
}
}
+ /** Helper function to resolve column to expr (if not yet) */
+ // TODO: it might be helpful to have this helper in Dataset.scala,
+ // e.g. `drop` function uses exactly the same flow to deal with
+ // `Column` arguments
Review comment:
We either use a block comment or many End-Of-Line comments. We don't mix
both like this.
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