Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18990 )

Change subject: IMPALA-10660: Impala shell prints DOUBLEs with less precision 
in HS2 than beeswax
......................................................................


Patch Set 2:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/18990/2/shell/option_parser.py
File shell/option_parser.py:

http://gerrit.cloudera.org:8080/#/c/18990/2/shell/option_parser.py@324
PS2, Line 324: fp_format_specification
It would be nice to contain the info in the name that this only applies to hs2, 
e.g hs2_fp_format


http://gerrit.cloudera.org:8080/#/c/18990/2/shell/option_parser.py@326
PS2, Line 326: help
Can you add info also about the default Python behavior and the value needed to 
match with Beeswax?


http://gerrit.cloudera.org:8080/#/c/18990/1/tests/shell/test_shell_commandline.py
File tests/shell/test_shell_commandline.py:

http://gerrit.cloudera.org:8080/#/c/18990/1/tests/shell/test_shell_commandline.py@1312
PS1, Line 1312:     args = ['--fp_format_specification', '.16f', '-q',
Can you


http://gerrit.cloudera.org:8080/#/c/18990/2/tests/shell/test_shell_commandline.py
File tests/shell/test_shell_commandline.py:

http://gerrit.cloudera.org:8080/#/c/18990/2/tests/shell/test_shell_commandline.py@1312
PS2, Line 1312: 16f
The value was chosen to match with beeswax, right? I think that we could skip 
this test for beeswax (or at least skip most of the test).

Also, can you add a few more tests?
Some ideas:
- test both float and double
- also test the default behavior
- also test > a 1 value
- test a NaN value
- test a negative value
- test a different format spec
- I think that we should also get the result in scientific notation in some 
cases, it would be nice to have a test for that



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I424339266be66437941be8bafaa83fa0f2dfbd4e
Gerrit-Change-Number: 18990
Gerrit-PatchSet: 2
Gerrit-Owner: Peter Rozsa <pro...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Daniel Becker <daniel.bec...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Comment-Date: Fri, 16 Sep 2022 15:42:54 +0000
Gerrit-HasComments: Yes

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