Github user scwf commented on a diff in the pull request:
https://github.com/apache/spark/pull/4380#discussion_r24287444
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala ---
@@ -48,6 +48,38 @@ import scala.collection.JavaConversions._
*/
private[hive] case object NativePlaceholder extends Command
+/**
+ * Returned for the "DESCRIBE [EXTENDED] [dbName.]tableName" command.
+ * @param table The table to be described.
+ * @param isExtended True if "DESCRIBE EXTENDED" is used. Otherwise, false.
+ * It is effective only when the table is a Hive table.
+ */
+case class DescribeCommand(
+ table: LogicalPlan,
+ isExtended: Boolean) extends Command {
+ override def output = Seq(
+ // Column names are based on Hive.
+ AttributeReference("col_name", StringType, nullable = false)(),
+ AttributeReference("data_type", StringType, nullable = false)(),
+ AttributeReference("comment", StringType, nullable = false)())
+}
--- End diff --
yeah, my bad, should remove it from here
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