cashmand commented on code in PR #45409:
URL: https://github.com/apache/spark/pull/45409#discussion_r1515515440
##########
sql/core/src/main/scala/org/apache/spark/sql/sources/interfaces.scala:
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@@ -175,6 +175,32 @@ trait CreatableRelationProvider {
mode: SaveMode,
parameters: Map[String, String],
data: DataFrame): BaseRelation
+
+ /**
+ * Check if the relation supports the given data type.
+ *
+ * @param dt Data type to check
+ * @return True if the data type is supported
+ */
+ def supportsDataType(
+ dt: DataType
+ ): Boolean = {
+ dt match {
+ case ArrayType(e, _) => supportsDataType(e)
+ case MapType(k, v, _) =>
+ supportsDataType(k) && supportsDataType(v)
+ case StructType(fields) => fields.forall(f =>
supportsDataType(f.dataType))
+ case udt: UserDefinedType[_] => supportsDataType(udt.sqlType)
+ case _: AnsiIntervalType | CalendarIntervalType | VariantType => false
+ case BinaryType | BooleanType | ByteType | CalendarIntervalType |
CharType(_) | DateType |
+ DayTimeIntervalType(_, _) | _ : DecimalType | DoubleType |
FloatType |
Review Comment:
Oh, that was an accident. I'll remove from this list. I can have it only
list supported types.
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