Skip site navigation (1) Skip section navigation (2)

Re: Frontend/Backend protocol 3.0

From: Andrei Gaspar <andi(at)softnrg(dot)dnttm(dot)ro>
To: Jonathan Fuerth <fuerth(at)sqlpower(dot)ca>
Cc: pgsql-odbc(at)postgresql(dot)org
Subject: Re: Frontend/Backend protocol 3.0
Date: 2005-06-03 07:44:14
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-odbc
That is great.
I've been using psqlodbc and missed a proper error code / sqlstate


Jonathan Fuerth wrote:

> Hello people,
> I've taken a few days to hack in support for the frontend/backend 
> protocol v3.0 (which first appeared in PostgreSQL 7.4).  My main 
> motivator was to get at the SQLSTATE codes which backends >= 7.4 
> return with every error message.
> What's done now:
>  -read the new message length field from all server responses
>  -Parse new-style error/notice blocks
>  -return correct SQLSTATE from backend to ODBC callers (connection and 
> result level)
>  -added #ifdef so the driver compiles against newer iODBC headers
> What I intend to finish this week:
>  -upgrade the function call API to new protocol
> What needs doing that I can't/won't finish soon:
>  -upgrade Windows configuration GUI to add new "7.4" protocol option
>  -take advantage of the new transaction status byte in 'Z' messages 
> (my patch just ignores them)
>  -rework prepared statement stuff to use the new protocol features (I 
> haven't looked at this stuff at all, but the old code works on the new 
> protocol--it could be faster, that's all)
> If there is any interest in this patch, I will post it to the list, or 
> email it to individuals.
> Regards,
> -Jonathan Fuerth
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if 
> your
>      joining column's datatypes do not match

No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.322 / Virus Database: 267.5.1 - Release Date: 6/2/2005

In response to


pgsql-odbc by date

Next:From: Jonathan FuerthDate: 2005-06-03 14:35:51
Subject: Re: Frontend/Backend protocol 3.0
Previous:From: TimDate: 2005-06-02 19:22:52
Subject: Specifying character sets in ODBC

Privacy Policy | About PostgreSQL
Copyright © 1996-2017 The PostgreSQL Global Development Group