Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/3039#discussion_r19685910
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala ---
@@ -267,6 +267,23 @@ class SQLContext(@transient val sparkContext:
SparkContext)
}
/**
+ * Unregisters the temporary table with the given table name in the
catalog. If the table has been
+ * cached/persisted before, it can be unpersisted if required.
+ *
+ * @param tableName the name of the table to be unregistered.
+ * @param unpersist whether to unpersist the table if it has been
cached/persisted before.
+ *
+ * @group userf
+ */
+ def unregisterTempTable(tableName: String, unpersist: Boolean = false):
Unit = {
--- End diff --
Why have an option to leave the data around after a table has been dropped?
Also what about "DROP [TEMPORARY?] TABLE"?
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