cloud-fan commented on code in PR #50921:
URL: https://github.com/apache/spark/pull/50921#discussion_r2195054967
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/jdbc/JDBCScanBuilder.scala:
##########
@@ -194,4 +304,13 @@ case class JDBCScanBuilder(
JDBCScan(JDBCRelation(schema, parts, jdbcOptions)(session), finalSchema,
pushedPredicate,
pushedAggregateList, pushedGroupBys, tableSample, pushedLimit,
sortOrders, pushedOffset)
}
+
+}
+
+object JoinPushdownAliasGenerator {
+ private val subQueryId = new java.util.concurrent.atomic.AtomicLong()
Review Comment:
It's fine, attribute ids are also globally unique but technically they only
need to be unique within a query.
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