Implements org.apache.spark.sql.sources.BaseRelation]], org.apache.spark.sql.sources.InsertableRelation]] and org.apache.spark.sql.sources.PrunedFilteredScan]] It inserts data to and scans Cassandra table.
Implements org.apache.spark.sql.sources.BaseRelation]], org.apache.spark.sql.sources.InsertableRelation]] and org.apache.spark.sql.sources.PrunedFilteredScan]] It inserts data to and scans Cassandra table. If filterPushdown is true, it pushs down some filters to CQL