yyanyy commented on code in PR #57487:
URL: https://github.com/apache/spark/pull/57487#discussion_r3687018004
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/V2ScanRelationPushDown.scala:
##########
@@ -1199,6 +1234,30 @@ case class ScanBuilderHolder(
case class V1ScanWrapper(
v1Scan: V1Scan,
handledFilters: Seq[sources.Filter],
- pushedDownOperators: PushedDownOperators) extends Scan {
+ pushedDownOperators: PushedDownOperators) extends Scan with
SupportsReportStatistics {
override def readSchema(): StructType = v1Scan.readSchema()
+
+ override def estimateStatistics(): V2Statistics = {
+ v1Scan match {
+ case r: SupportsReportStatistics => r.estimateStatistics()
+ case _ => new V2Statistics {
+ override def sizeInBytes(): java.util.OptionalLong =
java.util.OptionalLong.empty()
Review Comment:
removed and moved to the import list
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