beliefer commented on code in PR #43632:
URL: https://github.com/apache/spark/pull/43632#discussion_r1382497615
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sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala:
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@@ -3064,13 +3064,31 @@ class Dataset[T] private[sql](
*/
@scala.annotation.varargs
def drop(col: Column, cols: Column*): DataFrame = {
- val allColumns = col +: cols
- val expressions = (for (col <- allColumns) yield col match {
+ val expressions = (col +: cols).map {
case Column(u: UnresolvedAttribute) =>
- queryExecution.analyzed.resolveQuoted(
Review Comment:
What's the behavior of
`dropped_1 = joined_df.select(left_df["value1"], right_df["join_key"],
right_df["value2"])` ?
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