Problem with GDAL package from gd

I have PostgreSQL 9.4 running on a 64-bit Centos 6.4 machine, I have
then used "yum" to install
gdal.x86_64 1.9.2-6.rhel6
gdal-devel.x86_64 1.9.2-6.rhel6
gdal-java.x86_64 1.9.2-6.rhel6
gdal-libs.x86_64 1.9.2-6.rhel6
all from the pgdg94 repository. When I do
ogr2ogr --formats | grep "Post"
I get
-> "PostgreSQL" (read/write)
and I have various tests using ogr2ogr (from the gdal package) which work.

BUT

I also a 32-bit Centos 6.4 machine, on which I have used yum to remove
PostgreSQL 8.4 and then install PostgreSQL 9.4.

I have then used "yum" to install
gdal.i686 1.9.2-6.rhel6
gdal-devel.i686 1.9.2-6.rhel6
gdal-java.i686 1.9.2-6.rhel6
gdal-libs.i686 1.9.2-6.rhel6
again all from the pgdg94 repository. But ogr2ogr is unable to
connect to the database, and so my tests fail. When I do
ogr2ogr --formats | grep "Post"
I get nothing.

So it LOOKS like the 32-bit gdal rpms do not have PostgreSQL drivers.

Could that be right? For an rpm coming from the pgdg94 repository,
which is maintained by the Postgres project?

Is there another package that Yum or I should have installed?

Can you shed any light?

How do I track down what has gone wrong and fix it?

Robert.

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