Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/16059 )

Change subject: IMPALA-9747: More fine-grained codegen for text file scanners
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Patch Set 4:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/16059/3//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/16059/3//COMMIT_MSG@16
PS3, Line 16: version instead of failing codegen. For other columns codegen is 
used as
> Do you think it is tested in a unit test or an integration test?
I think that it is tested in 
https://github.com/apache/impala/blob/0167c5b4242fcebf6be19aba5ecfb440204278ad/testdata/workloads/functional-query/queries/QueryTest/chars.test,
 but it may make sense to add a few tests (e.g using functional.chars_medium) 
that read both both char(N) and other types of columns. A test that reads only 
char(N) (so that non of the columns' writeSlot can be codegend) could be also 
useful.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Id370193af578ecf23ed3c6bfcc65fec448156fa3
Gerrit-Change-Number: 16059
Gerrit-PatchSet: 4
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-Comment-Date: Thu, 11 Jun 2020 13:16:12 +0000
Gerrit-HasComments: Yes

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