cloud-fan commented on code in PR #37749:
URL: https://github.com/apache/spark/pull/37749#discussion_r963901980
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/physical/partitioning.scala:
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@@ -361,6 +361,18 @@ object KeyGroupedPartitioning {
partitionValues: Seq[InternalRow]): KeyGroupedPartitioning = {
KeyGroupedPartitioning(expressions, partitionValues.size,
Some(partitionValues))
}
+
+ def supportsExpressions(expressions: Seq[Expression]): Boolean = {
+ def isSupportedTransform(transform: TransformExpression): Boolean = {
+ transform.children.size == 1 &&
transform.children.head.isInstanceOf[AttributeReference]
+ }
+
+ expressions.forall {
+ case _: NamedExpression => true
Review Comment:
`NamedExpression` is not `NamedReference`. e.g. `a + b AS c` is also a
`NamedExpression`. We can add a small util function to check nested columns
```
def isReference(e: Expression): Boolean = e match {
case a: Attribute => true
case g: GetStructField => isReference(g.child)
case _ => false
}
```
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