gengliangwang commented on issue #23714: [SPARK-26744][SQL]Support schema validation in FileDataSourceV2 framework URL: https://github.com/apache/spark/pull/23714#issuecomment-463069578 The supported data types of file sources: - text: String - json: AtomicType/StructType/ArrayType/MapType/UDT/NULLType - CSV: AtomicType/UserDefinedType - ORC: AtomicType/StructType/ArrayType/MapType/udt - ... For details please read https://github.com/apache/spark/pull/21667 This is very simple abstraction.
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