[Bug 1050277] Re: sort and join disagree on sort order

[Stephen Baynes]

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https://bugs.launchpad.net/bugs/1050277

Title:
  sort and join disagree on sort order

Status in “coreutils” package in Ubuntu:
  New

Bug description:

  create file s.txt containing:
  1 b:1
  1.b:2
  1-b:3
  1fb:4

  sort produces output unchanged from input - so file is sorted. But join does
  not think so.

  $ sort s.txt
  1 b:1
  1.b:2
  1-b:3
  1fb:4

  $ join -t : -j 1 --check-order s.txt s.txt
  1 b:1:1
  join: s.txt:3: is not sorted: 1-b:3

  create file j.txt containing (same as s.txt with middle two lines swapped):
  1 b:1
  1-b:3
  1.b:2
  1fb:4

  sort sorts it back in to the order used in s.txt, but join is happy it
  is sorted.

  $ sort j.txt
  1 b:1
  1.b:2
  1-b:3
  1fb:4

  $ join -t : -j 1 --check-order j.txt j.txt
  1 b:1:1
  1-b:3:3
  1.b:2:2
  1fb:4:4

  Applies in both locale en_GB.UTF-8 and in locale C

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: coreutils 8.13-3ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  Date: Thu Sep 13 09:53:46 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: coreutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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