Re: Postgres 9.4 + unixODBC on Centos 6.5 problem connecting localhost postgres instance with isql ODBC commandline client - 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 update its
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(at)sss(dot)pgh(dot)pa(dot)us]
> Sent: Wednesday,July 22, 2015 03:38 PM
> To: Stefan Viljoen
> Cc: pgsql-odbc(at)postgresql(dot)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(at)verishare(dot)co(dot)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-old unixODBC 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
>
>
>