walterddr commented on a change in pull request #8468:
[FLINK-12399][table][table-planner] Fix FilterableTableSource does not change
after applyPredicate
URL: https://github.com/apache/flink/pull/8468#discussion_r323980865
##########
File path:
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/plan/nodes/PhysicalTableSourceScan.scala
##########
@@ -47,9 +47,25 @@ abstract class PhysicalTableSourceScan(
val terms = super.explainTerms(pw)
.item("fields", deriveRowType().getFieldNames.asScala.mkString(", "))
+ val auxiliarySourceDesc = tableSource match {
+ case fts: FilterableTableSource[_] =>
+ s"FilterPushDown=${fts.isFilterPushedDown.toString}"
+ case pts: ProjectableTableSource[_] =>
+ // TODO: add isTableProjected, or getProjectedFieldIndices API to
explain pushdown.
Review comment:
there's no way to determine currently for `ProjectableTableSource`. I will
create a follow up ticket for this once the solution is accepted.
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