GNU bug report logs - #6366
join can't join on numeric fields

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Package: coreutils; Severity: wishlist; Reported by: Alex Shinn <alexshinn@HIDDEN>; Keywords: patch; merged with #10924, #12264; dated Mon, 7 Jun 2010 05:24:02 UTC; Maintainer for coreutils is bug-coreutils@HIDDEN.

Severity set to 'wishlist' from 'normal' Request was from Assaf Gordon <assafgordon@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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Subject: Re: bug#6366: comm: use numeric sort (optionally)
To: =?UTF-8?Q?P=c3=a1draig_Brady?= <P@HIDDEN>
References: <87sjbeisvv.fsf@HIDDEN> <50355695.2030201@HIDDEN>
From: Assaf Gordon <assafgordon@HIDDEN>
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severity 6366 wishlist
stop

(triaging old bugs)

Hello,

On 22/08/12 04:00 PM, Pádraig Brady wrote:
> 
> On 08/22/2012 09:17 PM, Sam Steingold wrote:
>> I have a file of numbers (integers IDs) which are sorted numerically,
>> but comm complains that they are not.
>> I suggest that comm accept "-n" option (like sort) to use numeric sort.
>> Thanks.
> 
> Yes.
> comm, join, uniq really should support the same field selection
> and comparision flags as sort.
> 
> There are already bugs for that:
> http://bugs.gnu.org/5832
> http://bugs.gnu.org/6366

There is an on-going (though somewhat dormant) effort to
consolidate the key comparison of uniq/join/sort into one common
module:

   https://lists.gnu.org/r/coreutils/2013-02/msg00087.html
   https://lists.gnu.org/r/coreutils/2016-04/msg00063.html


As such, I'm marking this as a wishlist item, and hopefully we'll get
to it sooner or later...

regards,
  - assaf

Information forwarded to bug-coreutils@HIDDEN:
bug#6366; Package coreutils. Full text available.

Forcibly Merged 6366 10924 12264. Request was from era eriksson <era@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

Forcibly Merged 6366 12264. Request was from Pádraig Brady <P@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

Message received at 6366 <at> debbugs.gnu.org:

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unarchive 6366
stop

On 08/22/2012 09:17 PM, Sam Steingold wrote:
> Hi,
> I have a file of numbers (integers IDs) which are sorted numerically,
> but comm complains that they are not.
> I suggest that comm accept "-n" option (like sort) to use numeric sort.
> Thanks.

Yes.
comm, join, uniq really should support the same field selection
and comparision flags as sort.

There are already bugs for that:
http://bugs.gnu.org/5832
http://bugs.gnu.org/6366

For reference, the following examples show
expected an unexpected behavior respectively:

$ comm --nocheck <(printf "%s\n" a b c j k) <(printf "%s\n" a b d e j)
		a
		b
c
	d
	e
		j
k

$ comm --nocheck <(printf "%s\n" 1 2 3 10 11) <(printf "%s\n" 1 2 5 6 10)
		1
		2
3
10
11
	5
	6
	10

cheers,
P=E1draig.

Information forwarded to bug-coreutils@HIDDEN:
bug#6366; Package coreutils. Full text available.

Message received at 6366 <at> debbugs.gnu.org:

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Subject: join can't join on numeric fields
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--e89a8f83a645acfaf804bbba26a5
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Hi,

I've attached a patch that implements both "numeric sort" (-n) and "general
numeric sort" (-g).. I copied the relevant comparison code from sort.c to
ensure consistent behavior. Should these functions be extracted and put in
a shared header file, or is it okay to duplicate the code?

In terms of testing, I confirmed that the code correctly deals with
different single-byte thousand separators on my local machine, but I wasn't
sure how to exercise that in the test suite since I can't rely on everyone
having a particular locale available. How should that be handled?

I also updated the relevant docs.

Thanks,
Drew

P.S. I sent a previous version of the patch to the wrong address and
accidentally initiated a new bug thread (#10924). This patch supersedes the
previous.

--e89a8f83a645acfaf304bbba26a3
Content-Type: text/html; charset=ISO-8859-1
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Hi,<br><br>I&#39;ve attached a patch that implements both &quot;numeric sor=
t&quot; (-n) and &quot;general numeric sort&quot; (-g).. I copied the relev=
ant comparison code from sort.c to ensure consistent behavior. Should these=
 functions be extracted and put in a shared header file, or is it okay to d=
uplicate the code?<br>




<br>In terms of testing, I confirmed that the code correctly deals with dif=
ferent single-byte thousand separators on my local machine, but I wasn&#39;=
t sure how to exercise that in the test suite since I can&#39;t rely on eve=
ryone having a particular locale available. How should that be handled?<br>

<br>I also updated the relevant docs.<br>


<br>Thanks,<br>Drew<br><br>P.S. I sent a previous version of the patch to t=
he wrong address and accidentally initiated a new bug thread (#10924). This=
 patch supersedes the previous.<br>

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Cgo=
--e89a8f83a645acfaf804bbba26a5--

Information forwarded to bug-coreutils@HIDDEN:
bug#6366; Package coreutils. Full text available.