aokolnychyi commented on code in PR #55252:
URL: https://github.com/apache/spark/pull/55252#discussion_r3048972978
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/V2ScanRelationPushDown.scala:
##########
@@ -787,14 +800,22 @@ object V2ScanRelationPushDown extends Rule[LogicalPlan]
with PredicateHelper {
val wrappedScan = getWrappedScan(scan, sHolder)
- val scanRelation = DataSourceV2ScanRelation(sHolder.relation,
wrappedScan, output)
-
val projectionOverSchema =
ProjectionOverSchema(output.toStructType, AttributeSet(output))
val projectionFunc = (expr: Expression) => expr transformDown {
case projectionOverSchema(newExpr) => newExpr
}
+ // Remap pushed filter attributes to the pruned output schema. Note: if
a pushed filter
Review Comment:
I am not sure I follow. How can we drop the column if a filter references
it? That seems like a violation of the contract?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
