allisonwang-db commented on a change in pull request #31791:
URL: https://github.com/apache/spark/pull/31791#discussion_r608221318
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
##########
@@ -551,27 +552,84 @@ case class Sort(
/** Factory for constructing new `Range` nodes. */
object Range {
- def apply(start: Long, end: Long, step: Long,
- numSlices: Option[Int], isStreaming: Boolean = false): Range = {
- val output = StructType(StructField("id", LongType, nullable = false) ::
Nil).toAttributes
- new Range(start, end, step, numSlices, output, isStreaming)
- }
def apply(start: Long, end: Long, step: Long, numSlices: Int): Range = {
Range(start, end, step, Some(numSlices))
}
+
+ def getOutputAttrs: Seq[Attribute] = {
+ StructType(StructField("id", LongType, nullable = false) ::
Nil).toAttributes
+ }
+
+ private def typeCoercion: TypeCoercionBase = {
+ if (SQLConf.get.ansiEnabled) AnsiTypeCoercion else TypeCoercion
+ }
+
+ private def castAndEval[T](expression: Expression, dataType: DataType): T = {
+ typeCoercion.implicitCast(expression, dataType)
+ .map(_.eval())
+ .filter(_ != null)
+ .getOrElse {
+ throw
QueryCompilationErrors.incompatibleRangeInputDataTypeError(expression, dataType)
+ }.asInstanceOf[T]
+ }
+
+ def toLong(expression: Expression): Long = castAndEval[Long](expression,
LongType)
Review comment:
The original behavior is to implicit cast the given value into the
expected type:
https://github.com/apache/spark/blob/390d5bde81ce282a016c6cf36fb0d57012515388/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveTableValuedFunctions.scala#L40-L50
Where the expected types are hardcoded, for example `"end" -> LongType`
https://github.com/apache/spark/blob/390d5bde81ce282a016c6cf36fb0d57012515388/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveTableValuedFunctions.scala#L86-L88
It uses `TypeCoercion.implicitCast(value, expectedType)`. So here
`castAndEval` is trying to follow the previous behavior.
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