Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17780 )

Change subject: IMPALA-9662,IMPALA-2019(part-3): Support UTF-8 mode in mask 
functions
......................................................................


Patch Set 4:

> Patch Set 4:
>
> (6 comments)
>
> Looks great. My only concern is whether we just want to mask ascii 
> characters, or Unicode characters. For the former a simpler algorithm exists 
> for the method MastSubStrUtf8().
>
> We may need to decide the scope of the change (ascii characters only, or 
> Unicode characters in general) first.

Sorry that I may misunderstanding this.. For masking only ascii characters, we 
already support it in non-UTF8 mode. However, Hive always masks unicode 
characters (as described in IMPALA-9662). So this patch aims to add support for 
masking unicode characters.

Or do you mean whether we should support masking characters using unicode 
characters?


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I1276eccc94c9528507349b155a51e76f338367d5
Gerrit-Change-Number: 17780
Gerrit-PatchSet: 4
Gerrit-Owner: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Qifan Chen <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Comment-Date: Sat, 04 Sep 2021 11:46:13 +0000
Gerrit-HasComments: No

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