Zoltan Borok-Nagy has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/21959 )

Change subject: IMPALA-13370: Read Puffin stats from metadata.json property if 
available
......................................................................


Patch Set 7:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/21959/6/fe/src/main/java/org/apache/impala/catalog/PuffinStatsLoader.java
File fe/src/main/java/org/apache/impala/catalog/PuffinStatsLoader.java:

http://gerrit.cloudera.org:8080/#/c/21959/6/fe/src/main/java/org/apache/impala/catalog/PuffinStatsLoader.java@182
PS6, Line 182:
             :     return res;
             :   }
             :
             :   private long 
getNdvFromMetadata(org.apache.iceberg.BlobMetadata blob) {
             :     Strin
> In the first round we only registered NDVs in 'result_' where it was availa
I see, this a bit subtle, could you please add a comment for this?

I guess later we will want to consider older puffin files as well, and keep the 
NDV from the latest. Will we still want to log duplicates at that point?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I5e92056ce97c4849742db6309562af3b575f647b
Gerrit-Change-Number: 21959
Gerrit-PatchSet: 7
Gerrit-Owner: Daniel Becker <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Daniel Becker <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Peter Rozsa <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Fri, 22 Nov 2024 14:34:43 +0000
Gerrit-HasComments: Yes

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