[jira] [Commented] (IMPALA-10660) Impala shell prints DOUBLEs with less precision in HS2 than beeswax

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-10660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17654162#comment-17654162 ] 

ASF subversion and git services commented on IMPALA-10660:
----------------------------------------------------------

Commit 9b3385cee2b8e2c37a091dde45df360463386d8b in impala's branch refs/heads/master from Daniel Becker
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=9b3385cee ]

IMPALA-11799: Fix example of the hs2_fp_format shell option

IMPALA-10660 introduced the "hs2_fp_format" shell option. In the help
section describing the query option it states:

  Use '%16G' to match Beeswax protocol's floating-point output format

However, '%16G' is not accepted by the shell:

  bin/impala-shell.sh --hs2_fp_format='%16G'
  Invalid floating point format specification: %16G

This commit changes the example to '16G'.

Also corrected the name of the option in
shell/impala_shell_config_defaults.py from 'fp_format_specification' to
'hs2_fp_format'.

Change-Id: If53e69b495dfeb8d6d65878eff9580c5e12f793d
Reviewed-on: http://gerrit.cloudera.org:8080/19359
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


> Impala shell prints DOUBLEs with less precision in HS2 than beeswax
> -------------------------------------------------------------------
>
>                 Key: IMPALA-10660
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10660
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Clients
>            Reporter: Csaba Ringhofer
>            Assignee: Peter Rozsa
>            Priority: Major
>              Labels: ramp-up
>             Fix For: Impala 4.2.0
>
>
> python shell/impala_shell.py --protocol hs2
> select cast("0.123451234512345" as double);
> result: 0.123451234512 (looses precision)
> python shell/impala_shell.py --protocol beeswax
> select cast("0.123451234512345" as double);
> result 0.123451234512345 (no precision loss)



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