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bug#20745: I would like to make a request for the sort command
From: |
Eric Blake |
Subject: |
bug#20745: I would like to make a request for the sort command |
Date: |
Mon, 08 Jun 2015 08:14:20 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
On 06/08/2015 05:14 AM, Stephane Chazelas wrote:
> Maybe there's a way to allow that without having to implement
> the specifics in sort.
>
> Like sort key flags to invoke commands:
>
> sort '-k1,1|ip2hex' '-k2,2n|roman2int' '-k3,3|iconv -t us//TRANSLIT'
That would result in a LOT of process overhead (one command spawned per
sort key per line). True, it would be more generic, but the performance
would suffer compared to having a direct way to do the sorting within
the current process. It's going to be more efficient to do a single
pre-process pass, then sort, then post-process, with a complicated
script language doing the right processing per field in a single pass,
than to do one conversion per key per row.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- bug#20745: I would like to make a request for the sort command, Silverman, Jeffrey X. -ND, 2015/06/05
- bug#20745: I would like to make a request for the sort command, Pádraig Brady, 2015/06/05
- bug#20745: I would like to make a request for the sort command, Silverman, Jeffrey X. -ND, 2015/06/05
- bug#20745: I would like to make a request for the sort command, Eric Blake, 2015/06/05
- bug#20745: I would like to make a request for the sort command, Erik Auerswald, 2015/06/08
- bug#20745: I would like to make a request for the sort command, Stephane Chazelas, 2015/06/08
- bug#20745: I would like to make a request for the sort command, Erik Auerswald, 2015/06/08
- bug#20745: I would like to make a request for the sort command, Stephane Chazelas, 2015/06/08
- bug#20745: I would like to make a request for the sort command,
Eric Blake <=
- bug#20745: I would like to make a request for the sort command, Stephane Chazelas, 2015/06/08
- bug#20745: I would like to make a request for the sort command, Pádraig Brady, 2015/06/08
- bug#20745: I would like to make a request for the sort command, Stephane Chazelas, 2015/06/08