morrySnow opened a new pull request, #22894:
URL: https://github.com/apache/doris/pull/22894
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
cherry-pick from master #22487
commit id: 3961b8df7696fea608d0475d6a4153b5a7e36c1e
use three new plan node to represent defer materialize of TopN.
Example:
```
-- SQL
select * from t1 order by c1 limit 10;
-- PLAN
+------------------------------------------+
| Explain String |
+------------------------------------------+
| PhysicalDeferMaterializeResultSink |
| --PhysicalDeferMaterializeTopN |
| ----PhysicalDistribute |
| ------PhysicalDeferMaterializeTopN |
| --------PhysicalDeferMaterializeOlapScan |
+------------------------------------------+
```
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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