gengliangwang commented on a change in pull request #23639: [SPARK-26716][SQL]
FileFormat: the supported types of read/write should be consistent
URL: https://github.com/apache/spark/pull/23639#discussion_r251240930
##########
File path:
sql/hive/src/main/scala/org/apache/spark/sql/hive/orc/OrcFileFormat.scala
##########
@@ -181,19 +181,17 @@ class OrcFileFormat extends FileFormat with
DataSourceRegister with Serializable
}
}
- override def supportDataType(dataType: DataType, isReadPath: Boolean):
Boolean = dataType match {
+ override def supportDataType(dataType: DataType): Boolean = dataType match {
case _: AtomicType => true
- case st: StructType => st.forall { f => supportDataType(f.dataType,
isReadPath) }
+ case st: StructType => st.forall { f => supportDataType(f.dataType) }
- case ArrayType(elementType, _) => supportDataType(elementType, isReadPath)
+ case ArrayType(elementType, _) => supportDataType(elementType)
case MapType(keyType, valueType, _) =>
- supportDataType(keyType, isReadPath) && supportDataType(valueType,
isReadPath)
+ supportDataType(keyType) && supportDataType(valueType)
- case udt: UserDefinedType[_] => supportDataType(udt.sqlType, isReadPath)
-
- case _: NullType => isReadPath
Review comment:
@srowen This is one of the propose of this PR. ORC doesn't support NullType.
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