anuragmantri commented on code in PR #55518:
URL: https://github.com/apache/spark/pull/55518#discussion_r4485022205
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala:
##########
@@ -356,6 +357,32 @@ trait RowLevelWrite extends V2WriteCommand with
SupportsSubquery {
def condition: Expression
def originalTable: NamedRelation
+ /** The projections that read query columns by ordinal. */
+ protected def queryProjections: Seq[ProjectingInternalRow]
+
+ /**
+ * The write reads the operation column at ordinal 0 and other query columns
only through
+ * projections, by ordinal. Any other query column can be pruned with
[[withPrunedQuery]].
+ */
+ override lazy val references: AttributeSet = {
+ val output = query.output.toIndexedSeq
+ val readOrdinals = 0 +: queryProjections.flatMap(_.colOrdinals)
+ AttributeSet(readOrdinals.map { ordinal =>
+ if (!output.isDefinedAt(ordinal)) {
+ throw SparkException.internalError(
Review Comment:
Done in d406c8b0e00.
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