GNU bug report logs - #9325
document that "all bets are off if the file contains non-unique join fields"

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Package: coreutils;

Reported by: jidanni <at> jidanni.org

Date: Thu, 18 Aug 2011 21:29:01 UTC

Severity: normal

Done: Pádraig Brady <P <at> draigBrady.com>

Bug is archived. No further changes may be made.

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Message #16 received at 9325 <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: 9325 <at> debbugs.gnu.org
Subject: Re: bug#9325: closed (Re: bug#9325: document that "all bets are off
	if the file contains non-unique join fields")
Date: Fri, 19 Aug 2011 19:46:29 +0800

OK, glad to know they are supported. Indeed,

$ join <(printf "%s\n" 'a 1' 'b 2' 'b 3' 'c 4') <(printf "%s\n" a b 'b 5' c c)
a 1
b 2
b 2 5
b 3
b 3 5
c 4
c 4

So be sure to mention it wherever you mention files must be in sorted
order.

I mean probably if you don't mention it, nobody will be sure what the
behavior will be.
This bug report was last modified 13 years and 277 days ago.

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