Michael Smith has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/22094 )

Change subject: IMPALA-13533: Calcite CTE backend
......................................................................


Patch Set 25:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/22094/25/be/src/scheduling/scheduler.cc
File be/src/scheduling/scheduler.cc:

http://gerrit.cloudera.org:8080/#/c/22094/25/be/src/scheduling/scheduler.cc@1123
PS25, Line 1123:         // TODO: implies multiple CTE consumers under a union 
requires their producers
This no longer applies, unions are handled elsewhere.


http://gerrit.cloudera.org:8080/#/c/22094/25/be/src/scheduling/scheduler.cc@1141
PS25, Line 1141:       ? GetFirstProducer(fragment_state, state)
I don't fully understand why this was necessary, I would have thought the CTE 
would always appear on the probe side of a hash join (build side would go 
through an exchange). Where I would interpret "left-most" as meaning the probe 
side.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I48f16d495d4b37be97e6a913f0eb5b94d70e199a
Gerrit-Change-Number: 22094
Gerrit-PatchSet: 25
Gerrit-Owner: Michael Smith <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Steve Carlin <[email protected]>
Gerrit-Comment-Date: Tue, 16 Dec 2025 19:39:01 +0000
Gerrit-HasComments: Yes

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