Destroy and cleanup this relation.
Destroy and cleanup this relation. It may include, but not limited to, dropping the external table that this relation represents.
Get a spark plan for insert.
Get a spark plan for insert. The result of SparkPlan execution should be a count of number of inserted rows.
Return true if table already existed when the relation object was created.
Return true if table already existed when the relation object was created.
Truncate the table represented by this relation.
Truncate the table represented by this relation.