Xuebin Su has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/23493 )

Change subject: IMPALA-14472: Add create/read support for ARRAY column of Kudu
......................................................................


Patch Set 7:

(4 comments)

Thanks for reviewing!

http://gerrit.cloudera.org:8080/#/c/23493/4/be/src/exec/kudu/kudu-scanner.cc
File be/src/exec/kudu/kudu-scanner.cc:

http://gerrit.cloudera.org:8080/#/c/23493/4/be/src/exec/kudu/kudu-scanner.cc@537
PS4, Line 537:
> This memory gets deepcopied again on line 551 for surviving rows, so is not
Thanks! The new Patch Set tries to reuse the buffer instead of allocating a new 
one for each CollectionValue.

And the buffer will be freed at the end of this function instead of being 
attached to the row batch.


http://gerrit.cloudera.org:8080/#/c/23493/5/be/src/exec/kudu/kudu-scanner.cc
File be/src/exec/kudu/kudu-scanner.cc:

http://gerrit.cloudera.org:8080/#/c/23493/5/be/src/exec/kudu/kudu-scanner.cc@400
PS5, Line 400:     RawValue::WriteNonNull<false>(&tv, kudu_tuple, slot, 
nullptr, nullptr, nullptr);
> Could use writeNotNull() here if you make it public.
Thanks! Changed.


http://gerrit.cloudera.org:8080/#/c/23493/5/be/src/exec/kudu/kudu-scanner.cc@476
PS5, Line 476:           "Could not allocate memory when reading Kudu ARRAY in 
table '$0' column '$1'",
> Is this zeroing needed? IF so, we should make just zero trailing bytes and
Thanks! I think I still need more time to think about whether it is needed.


http://gerrit.cloudera.org:8080/#/c/23493/5/fe/src/main/java/org/apache/impala/catalog/KuduColumn.java
File fe/src/main/java/org/apache/impala/catalog/KuduColumn.java:

http://gerrit.cloudera.org:8080/#/c/23493/5/fe/src/main/java/org/apache/impala/catalog/KuduColumn.java@89
PS5, Line 89:     Type type = KuduUtil.toImpalaType(colSchema);
> Move this into the conditional branch below.
Thanks! It seems that 'type' is also used in the return statement below.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I9282aac821bd30668189f84b2ed8fff7047e7310
Gerrit-Change-Number: 23493
Gerrit-PatchSet: 7
Gerrit-Owner: Riza Suminto <[email protected]>
Gerrit-Reviewer: Abhishek Chennaka <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Kurt Deschler <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Reviewer: Xuebin Su <[email protected]>
Gerrit-Comment-Date: Thu, 16 Oct 2025 07:45:50 +0000
Gerrit-HasComments: Yes

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