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Re: [INTERFACES] Re: thread-safe libpq and DBD::Pg

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: emarsden(at)mail(dot)dotcom(dot)fr
Cc: pgsql-interfaces(at)postgreSQL(dot)org
Subject: Re: [INTERFACES] Re: thread-safe libpq and DBD::Pg
Date: 1998-08-12 14:48:26
Message-ID: 4093.902933306@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-interfaces
Eric Marsden <emarsden(at)mail(dot)dotcom(dot)fr> writes:
>>>>>> "TL" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
TL> The present libpgtcl is NOT pure Tcl --- it is a C-coded Tcl
TL> extension, besides which it is layered on top of libpq.

> the documentation for libpgtcl states (this is from the top of
> postgresql-6.3.2/doc/src/sgml/libpgtcl.sgml)

>    pgtcl is a tcl package for front-end programs to interface with
>    <ProductName>Postgres</ProductName> backends. pgtcl does not use
>    the libpq library but communicates to the backend directly via the
>    frontend-backend protocol. Thus, it is more efficient than previous
>    postgres->tcl bindings which are layered on top of libpq. In
>    addition, pgtcl can handle multiple backend connections from a
>    single frontend application.

Yeah, that paragraph is all wet --- perhaps there once was a libpgtcl
written that way, but the current distribution certainly is not it.
I took that para out of the CVS sources some time ago.

			regards, tom lane

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Subject: Back-end problems with Delphi and ODBCExpress
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