Github user wzhfy commented on a diff in the pull request: https://github.com/apache/spark/pull/16422#discussion_r138510770 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala --- @@ -626,6 +624,74 @@ case class DescribeTableCommand( } } +/** + * A command to list the info for a column, including name, data type, column stats and comment. + * This function creates a [[DescribeColumnCommand]] logical plan. --- End diff -- A followup PR to improve the comments is sent: https://github.com/apache/spark/pull/19213
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