Returns a new base relation with the given parameters, a user defined schema, and a list of partition columns.
Returns a new base relation with the given parameters, a user defined schema, and a list of partition columns. Note: the parameters' keywords are case insensitive and this insensitivity is enforced by the Map that is passed to the function.
Schema of data columns (i.e., columns that are not partition columns).
The string that represents the format that this data source provider uses.
The string that represents the format that this data source provider uses. This is overridden by children to provide a nice alias for the data source. For example:
override def shortName(): String = "parquet"
1.5.0
A data source for reading text files.