From: | Bill Moran <wmoran(at)potentialtech(dot)com> |
---|---|
To: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Unexpected behaviour of encode() |
Date: | 2013-03-26 18:36:04 |
Message-ID: | 20130326143604.b43f120ce961684f4a232c8d@potentialtech.com |
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Lists: | pgsql-general |
In response to Merlin Moncure <mmoncure(at)gmail(dot)com>:
> On Tue, Mar 26, 2013 at 12:47 PM, Bill Moran <wmoran(at)potentialtech(dot)com> wrote:
> >
> > psql -U postgres
> > psql (9.2.3)
> > Type "help" for help.
> >
> > postgres=# select encode('can''t', 'escape');
> > encode
> > --------
> > can't
> > (1 row)
> >
> > I observed the same behaviour on one of our older systems (8.3.11) as well.
> >
> > Am I missing something? I expected "can''t" as the output.
>
> why? that isn't what you passed it. the input string doubled single
> quotes is converted to single single quote per spec. it's 'ghetto
> escaping'.
Not sure what you mean by "ghetto secaping" ... but doubling up a '
is the SQL standard escaping method, AFAIK.
If I just do:
SELECT 'can''t'::text;
I get "can't" which is what I'd expect. I would then expect
encode to escape the ' somehow. Even c-style escaping, like
"can\'t" would have been less surprising to me.
If there's something I'm missing, I'm still missing it.
--
Bill Moran
http://www.potentialtech.com
http://people.collaborativefusion.com/~wmoran/
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