[root@insanity ~]# yum install php-pgsql postgresql-server
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Excluding Packages in global exclude list
Finished
Parsing package install arguments
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package php-pgsql.i386 0:4.3.9-3.9 set to be updated
--> Running transaction check
--> Processing Dependency: libpq.so.3 for package: php-pgsql
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package compat-postgresql-libs.i386 0:3-4.c4.centos set to be updated
--> Running transaction check

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 php-pgsql               i386       4.3.9-3.9        update             49 k
Installing for dependencies:
 compat-postgresql-libs  i386       3-4.c4.centos    c4-testing        201 k

Transaction Summary
=============================================================================
Install      2 Package(s)
Update       0 Package(s)
Remove       0 Package(s)
Total download size: 250 k
Is this ok [y/N]: