Re: Toast, Text, blob bytea Huh?

From: "Joe Conway" <joseph(dot)conway(at)home(dot)com>
To: "Ryan" <ryan_rs(at)c4(dot)com>, <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Toast, Text, blob bytea Huh?
Date: 2001-09-10 15:01:19
Message-ID: 002401c13a09$72b51030$0705a8c0@jecw2k1
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> joseph(dot)conway(at)home(dot)com ("Joe Conway") wrote in message
news:<02a101c12c0e$37856d60$48d210ac(at)jecw2k1>...
> ... snip
> > BYTEA is very similar to TEXT, except that it is intended for binary
data. I
> > recently posted a PHP function which escapes binary in order to allow
> > inserting it into a bytea column (on the pgsql-general list). At a
minimum
> > there are 4 characters which must be escaped. They are ACSII 0, 10, 39,
and
> > 92. They must reach PostgreSQL looking like \\000, \\012, \\047, and
\\134
> > respectively (actually 39 could be \' and 92 could be \\\\, but it is
> > simpler to be consistent).
> ... snip
>
> Is it actually necessary to escape \012 (linefeed) in a query? My
> brief testing using psql or python pygresql seemed to work ok with
> only \000, \', and \\ escaped. Gosh, maybe all my data is corrupted
> (!!)
>

Sorry the response is a week late, but your post just hit the list (at least
I just got it). I found after sending this, that the problem with linefeeds
was in my PHP code, so you should be OK :-)

Sorry for the confusion I may have caused!

Joe

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