amaliujia commented on code in PR #40651:
URL: https://github.com/apache/spark/pull/40651#discussion_r1159225369
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ordering.scala:
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@@ -57,20 +57,10 @@ class InterpretedOrdering(ordering: Seq[SortOrder]) extends
BaseOrdering {
return if (order.nullOrdering == NullsFirst) 1 else -1
} else {
val comparison = order.dataType match {
- case dt: AtomicType if order.direction == Ascending =>
- dt.ordering.asInstanceOf[Ordering[Any]].compare(left, right)
- case dt: AtomicType if order.direction == Descending =>
- - dt.ordering.asInstanceOf[Ordering[Any]].compare(left, right)
- case a: ArrayType if order.direction == Ascending =>
- a.interpretedOrdering.asInstanceOf[Ordering[Any]].compare(left,
right)
- case a: ArrayType if order.direction == Descending =>
- - a.interpretedOrdering.asInstanceOf[Ordering[Any]].compare(left,
right)
- case s: StructType if order.direction == Ascending =>
- s.interpretedOrdering.asInstanceOf[Ordering[Any]].compare(left,
right)
- case s: StructType if order.direction == Descending =>
- - s.interpretedOrdering.asInstanceOf[Ordering[Any]].compare(left,
right)
- case other =>
- throw
QueryExecutionErrors.orderedOperationUnsupportedByDataTypeError(other)
+ case dt if order.direction == Ascending =>
+ PhysicalDataType.ordering(dt).compare(left, right)
Review Comment:
Right. Move this to a lazy val to initialize it once.
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