Re: Postgres 9.4 + unixODBC on Centos 6.5 problem connecting localhost postgres instance with isql ODBC commandline client - SOLVED

Hi Jaime

Thanks for confirming that. I suspected as much when I tcpdumped the traffic to the localhost and saw that the db names
werebeing munged when a connection from the old unixODBC was attempted... 

Kind regards.

-----Original Message-----
From: jaime soler [mailto:jaime.soler@gmail.com]
Sent: Wednesday,July 29, 2015 03:05 PM
To: Stefan Viljoen
Cc: pgsql-odbc@postgresql.org; 'Devrim GÃœNDÃœZ'
Subject: Re: [ODBC] Postgres 9.4 + unixODBC on Centos 6.5 problem connecting localhost postgres instance with isql ODBC
commandlineclient - SOLVED 

El mié, 22-07-2015 a las 15:47 +0200, Stefan Viljoen escribió:
> Hi Tom
>
> Thanks for the answer.
>
> Yes, it turned out to be an incompatibility of some kind.
>
> I downgraded the Postgress instance to 9.0 and immediately everything started working.
>
> I suspect that the very old unixODBC (2.2.14) that ships with a fully
> updated Centos 6.5 (also old) is simply incompatible with the psqlodbc
> driver shipped with Postgres 9.4

unixODBC should be at least 2.3.1 for postgresql 9.3 and 9.4 .
Enterprisedb ships unixODBC-2.3.1.tar.bz2 with pgodbc driver, so I suppose postgresql-odbc ( redhat package)  have to
updateits dependencies. 
>
> Everything is now working fine on Postgres 9.0
>
> Maybe put up a note somewhere relevant that (maybe) Centos 6.5 stock unixODBC cannot talk to Postgres 9.4's ODBC
driver?
>
> 9.0 definitely works like a charm (at least in my Centos 6.5 instance
> here.)
>
> Thanks for the time you took to assist with this.
>
> Kind regards,
>
> -----Original Message-----
> From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
> Sent: Wednesday,July 22, 2015 03:38 PM
> To: Stefan Viljoen
> Cc: pgsql-odbc@postgresql.org; Devrim GÃœNDÃœZ
> Subject: Re: [ODBC] Postgres 9.4 + unixODBC on Centos 6.5 problem
> connecting localhost postgres instance with isql ODBC commandline
> client - SOLVED
>
> "Stefan Viljoen" <viljoens@verishare.co.za> writes:
> > I managed to solve this on Centos 6.5 by downgrading to Postgres 9.0
> > and ODBC is now working fine:
>
> Hm.  That should not have fixed anything, because there for sure have not been any basic protocol-level changes since
9.0.
>
> Looking back at your earlier messages, I notice that you are using the Red Hat-supplied unixODBC package:
>
> > # yum list installed | grep ODBC
> >
> > unixODBC.x86_64         2.2.14-14.el6   @base
> > unixODBC-devel.x86_64   2.2.14-14.el6   @base
>
> but the Postgres ODBC driver seems to be coming from PGDG:
>
> > # yum list installed | grep postgres
> >
> > postgresql94.x86_64     9.4.4-1PGDG.rhel6
> > postgresql94-contrib.x86_64
> > postgresql94-devel.x86_64
> > postgresql94-docs.x86_64
> > postgresql94-libs.x86_64
> > postgresql94-odbc.x86_64
> > postgresql94-odbc-debuginfo.x86_64
> > postgresql94-server.x86_64
>
> An all-Red-Hat solution for this would look like
>
> Installing:
>  postgresql-odbc   x86_64   08.04.0200-1.el6    rhel-6-workstation-rpms   267 k
> Installing for dependencies:
>  postgresql-libs   x86_64   8.4.20-3.el6_6      rhel-6-workstation-rpms   202 k
>  unixODBC          x86_64   2.2.14-14.el6       rhel-6-workstation-rpms   378 k
>
> So now I'm suspicious that there's some incompatibility between the ODBC driver that Devrim is shipping and the
admittedly-pretty-oldunixODBC manager in RHEL6. 
>
> (I haven't worked for Red Hat in a couple of years, but I'm fairly
> sure that when I left, their ODBC packages would still talk to current
> Postgres server versions, because I recall testing that.  However, I
> never tested the combination of their unixODBC with the PGDG packaging
> of the ODBC
> driver...)
>
>             regards, tom lane
>
>
>