Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/5646#discussion_r28937072
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetTypes.scala ---
@@ -48,8 +48,10 @@ private[parquet] case class ParquetTypeInfo(
length: Option[Int] = None)
private[parquet] object ParquetTypesConverter extends Logging {
- def isPrimitiveType(ctype: DataType): Boolean =
- classOf[PrimitiveType] isAssignableFrom ctype.getClass
+ def isPrimitiveType(ctype: DataType): Boolean = ctype match {
+ case _: NumericType | BooleanType | StringType | BinaryType => true
--- End diff --
We need to put all types other than `MapType`, `ArrayType`, and
`StructType` here. Parquet uses this function to create record converters
[here] [1].
[1]:
https://github.com/apache/spark/blob/03e85b4a11899f37424cd6e1f8d71f1d704c90bb/sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetConverter.scala#L161-L165
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