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 format(): String = "parquet"
1.5.0
::DeveloperApi:: Data sources should implement this trait so that they can register an alias to their data source. This allows users to give the data source alias as the format type over the fully qualified class name.
A new instance of this class with be instantiated each time a DDL call is made.
1.5.0