Returns a property with all options except Spark internal data source options like url,
dbtable, and numPartition.
Returns a property with all options except Spark internal data source options like url,
dbtable, and numPartition. This should be used when invoking JDBC API like Driver.connect
because each DBMS vendor has its own property list for JDBC driver. See SPARK-17776.
Returns a property with all options.
Returns a property with all options.