Qifan Chen has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18050 )

Change subject: [WIP] IMPALA-10992 Planner changes for estimate peak memory - v2
......................................................................


Patch Set 2:

Major work to backup the following info to facilitate proper replan.

1. The structure of a query tree as the child of a node can be altered;
2. The next node Id before create*Fragment() call;
3. The fragment Id (reset to 0);

The restoration of the above info when the current distributed plan is not good 
enough. In addition, AggregationNode.needsFinalize_ is restored to true 
unconditionally.


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: If8a31a574b364f39b049a4bae33a8b98c5fc20bd
Gerrit-Change-Number: 18050
Gerrit-PatchSet: 2
Gerrit-Owner: Qifan Chen <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Qifan Chen <[email protected]>
Gerrit-Comment-Date: Tue, 30 Nov 2021 19:18:12 +0000
Gerrit-HasComments: No

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