Riza Suminto has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/20009 )

Change subject: IMPALA-12183: Fix cardinality clamping across aggregation phases
......................................................................


Patch Set 4:

(8 comments)

http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java
File fe/src/main/java/org/apache/impala/planner/AggregationNode.java:

http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@238
PS2, Line 238:     // TODO: IMPALA-2945: this doesn't correctly take into 
account duplicate keys on
> Please revert to the old for loop since the index is not used except to ret
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@263
PS2, Line 263:     if (cardinality_ > 0) {
> Revert this signature also
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@307
PS2, Line 307:     }
> nit:searches
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@308
PS2, Line 308:     // We have a valid estimate of the number of groups. Cap it 
at number of input
> nit:returns
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@311
PS2, Line 311:       numGroups = Math.min(aggInputCardinality, numGroups);
> nit:returns
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@542
PS2, Line 542:     }
> pass aggInfo as arg instead or idx
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@552
PS2, Line 552:   private long getAggClassInputCardinality(
> revert for loop
Done


http://gerrit.cloudera.org:8080/#/c/20009/2/fe/src/main/java/org/apache/impala/planner/AggregationNode.java@564
PS2, Line 564:   @Override
> ditto. Pass aggInfo instead of i
Done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I1d414fe56b027f887c7f901d8a6799a388b16b95
Gerrit-Change-Number: 20009
Gerrit-PatchSet: 4
Gerrit-Owner: Riza Suminto <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Aman Sinha <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Kurt Deschler <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Comment-Date: Tue, 06 Jun 2023 18:16:32 +0000
Gerrit-HasComments: Yes

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