Steve Carlin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/21238 )

Change subject: IMPALA-12964: Implement basic aggregation in the Calcite planner
......................................................................


Patch Set 11:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/21238/11//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/21238/11//COMMIT_MSG@21
PS11, Line 21: 2) Avoid refactoring in the first major iteration of the Calcite 
planner.
> I assume this is something you and Joe talked about? I would have suggested
Ack


http://gerrit.cloudera.org:8080/#/c/21238/11//COMMIT_MSG@28
PS11, Line 28: 1) "Having" filter conjuncts are going to be "unassigned 
conjuncts".
> I don't see a test case for "having".
Done


http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaAggRel.java
File 
java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaAggRel.java:

http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaAggRel.java@21
PS11, Line 21: import com.google.common.base.Preconditions;
> I assume all of these are used. Did you do a pass with an IDE to check for
Incorrect assumption!

I sometimes use an IDE, but not always.

I just ran all changed files here through the IDE and removed unused imports


http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaAggRel.java@108
PS11, Line 108:         (SimplifiedAnalyzer) context.ctx_.getRootAnalyzer();
> Maybe a Precondition for this cast?
Done


http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaAggRel.java@339
PS11, Line 339:   @Override
> When is copy used? Is it a requirement for Aggregate?
So Aggregate requires copy to be defined because it is abstract. But I ran it 
through the test environment and it doesn't seem to be called.

So then I guess the question is: Do I leave the code as/is?  Or do I throw a 
"not implemented" RuntimeException?  Not sure which is better.


http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaPlanRel.java
File 
java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaPlanRel.java:

http://gerrit.cloudera.org:8080/#/c/21238/11/java/calcite-planner/src/main/java/org/apache/impala/calcite/rel/node/ImpalaPlanRel.java@35
PS11, Line 35:     AGG,
> Can we spell this out? I don't see much value in truncating it.
Done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Iacf0de8ba11f0d31d73d624f0c9a91db9997cfd5
Gerrit-Change-Number: 21238
Gerrit-PatchSet: 11
Gerrit-Owner: Steve Carlin <[email protected]>
Gerrit-Reviewer: Aman Sinha <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[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: Wed, 10 Jul 2024 22:02:01 +0000
Gerrit-HasComments: Yes

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