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@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"  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
> 
> 
>