From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Eugene E. <sad@bankir.ru>
Cc: Peter Eisentraut <peter_e@gmx.net>
Cc: Achilleus Mantzios <achill@matrix.gatewaynet.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: have you feel anything when you read this ?
Date: Wed, 5 Apr 2006 07:36:46 -0700 (PDT)
Message-ID: <20060405071322.Y58168@megazone.bigpanda.com> (raw)
In-Reply-To: <4433650E.1020508@bankir.ru>
References: <Pine.LNX.4.44.0603201522410.22894-100000@matrix.gatewaynet.com>
<441EA0A7.8030601@bankir.ru>
<200603201415.30719.peter_e@gmx.net>
<442CC95C.1030700@bankir.ru>
<20060331084503.W64402@megazone.bigpanda.com>
<44324AB6.2060104@bankir.ru>
<20060404071118.C19036@megazone.bigpanda.com>
<4433650E.1020508@bankir.ru>
On Wed, 5 Apr 2006, Eugene E. wrote:
> Stephan Szabo wrote:
> > On Tue, 4 Apr 2006, Eugene E. wrote:
> >
> >
> >>Stephan Szabo wrote:
> >>
> >>>On Fri, 31 Mar 2006, Eugene E. wrote:
> >>>
> >>>
> >>>
> >>>>Peter Eisentraut wrote:
> >>>>
> >>>>
> >>>>>Eugene E. wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>>the problem is: you'll get this four byte sequence '\000' _instead_
> >>>>>>of NUL-byte anyway.
> >>>>>
> >>>>>
> >>>>>What you seem to be missing is that PostgreSQL data can be represented
> >>>>>in textual and in binary form. What you in psql is the textual form.
> >>>>>If you want the binary form you need to select it. Then you can pass
> >>>>>the exact bytes back and forth.
> >>>>
> >>>>your sentence is not true.
> >>>>I can not select exact bytes even if i use BYTEA type
> >>>
> >>>
> >>>No, that is still using the textual form. If you use PQexecParams and set
> >>>the last argument to show you want binary data, you should get binary
> >>>data.
>
> ok
> then i am using PQexecParams
>
> the following tiny program shows a wonderful lameness...
What lameness? The fact that you're trying to use a binary (network order
maybe) integer as a string? That's not the fault of PQexecParams but
of the code calling it.
It'd be nice for ease of use to be able to say, give me this
column (the integer) as a string and this column (the bytea) as binary,
especially as the commentary implies that the protocol supports it. But as
I said before, that's a separate discussion from whether or not Peter's
claim that it's possible to get binary data is false.
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To: pgsql-sql@postgresql.org
Cc: sszabo@megazone.bigpanda.com, sad@bankir.ru, peter_e@gmx.net, achill@matrix.gatewaynet.com
Subject: Re: have you feel anything when you read this ?
In-Reply-To: <20060405071322.Y58168@megazone.bigpanda.com>
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