wangyum commented on a change in pull request #34291:
URL: https://github.com/apache/spark/pull/34291#discussion_r734965177
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/V2ScanRelationPushDown.scala
##########
@@ -225,6 +225,37 @@ object V2ScanRelationPushDown extends Rule[LogicalPlan]
with PredicateHelper {
withProjection
}
+ def applyLimit(plan: LogicalPlan): LogicalPlan = plan.transform {
+ case globalLimit @ GlobalLimit(_, l @
LocalLimit(IntegerLiteral(limitValue), child)) =>
Review comment:
Could we pushdown `LocalLimit`? pushdown `LocalLimit` can benefit this
query:
```sql
select * from jdbc_table t1 left join t2 on t1.id = t2.id limit 2;
```
--
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]
