Patch to adapt PGDG PostgreSQL 9.2.4 SRPM to build against End Point's local-perl for PL/Perl in https://packages.endpoint.com/ and without integer datetime so that it's compatible with pg_upgrade back to 8.3.

postgresql-9.2.4-RHEL5.spec-ep.diff

Patch against specfile of:
http://yum.pgrpms.org/srpms/9.2/redhat/rhel-5-x86_64/postgresql92-9.2.4-1PGDG.rhel5.src.rpm
--- postgresql-9.2.spec.orig	2013-04-01 23:10:41.000000000 +0000
+++ postgresql-9.2.spec	2013-05-16 21:22:23.000000000 +0000
@@ -57,7 +57,7 @@
 %{!?pltcl:%define pltcl 1}
 %{!?plperl:%define plperl 1}
 %{!?ssl:%define ssl 1}
-%{!?intdatetimes:%define intdatetimes 1}
+%{!?intdatetimes:%define intdatetimes 0}
 %{!?kerberos:%define kerberos 1}
 %{!?nls:%define nls 1}
 %{!?xml:%define xml 1}
@@ -67,10 +67,13 @@
 %{!?uuid:%define uuid 1}
 %{!?ldap:%define ldap 1}
 
+# Work around local-perl redefinitions
+%define _sbindir /usr/sbin
+
 Summary:	PostgreSQL client programs and libraries
 Name:		%{oname}%{packageversion}
 Version:	9.2.4
-Release:	1PGDG%{?dist}
+Release:	1PGDG.didt%{?dist}
 License:	PostgreSQL
 Group:		Applications/Databases
 Url:		http://www.postgresql.org/ 
@@ -91,7 +94,7 @@
 Patch6:		postgresql-perl-rpath.patch
 Patch8:		postgresql-prefer-ncurses.patch
 
-Buildrequires:	perl glibc-devel bison flex
+Buildrequires:	local-perl = 4:5.10.0, glibc-devel, bison, flex
 Requires:	/sbin/ldconfig initscripts
 
 %if %plpython
@@ -139,7 +142,6 @@
 Requires(postun):	%{_sbindir}/update-alternatives
 
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
-Provides:	postgresql
 
 %description
 PostgreSQL is an advanced Object-Relational database management system
@@ -161,8 +163,6 @@
 %package libs
 Summary:	The shared libraries required for any PostgreSQL clients
 Group:		Applications/Databases
-Provides:	libpq.so
-Provides:	postgresql-libs
 
 %description libs
 The postgresql92-libs package provides the essential shared libraries for any 
@@ -175,7 +175,6 @@
 Group:		Applications/Databases
 Requires:	/usr/sbin/useradd /sbin/chkconfig 
 Requires:	%{name} = %{version}-%{release}
-Provides:	postgresql-server
 
 %description server
 The postgresql92-server package includes the programs needed to create
@@ -188,10 +187,12 @@
 PostgreSQL databases and/or your own PostgreSQL server. You also need
 to install the postgresql package.
 
+This version is built with --disable-integer-datetimes to enable use of
+pg_upgrade.
+
 %package docs
 Summary:	Extra documentation for PostgreSQL
 Group:		Applications/Databases
-Provides:	postgresql-docs
 
 %description docs
 The postgresql92-docs package includes the SGML source for the documentation
@@ -204,7 +205,6 @@
 Summary:	Contributed source and binaries distributed with PostgreSQL
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
-Provides:	postgresql-contrib
 
 %description contrib
 The postgresql92-contrib package contains contributed packages that are
@@ -214,7 +214,6 @@
 Summary:	PostgreSQL development header files and libraries
 Group:		Development/Libraries
 Requires:	%{name} = %{version}-%{release}
-Provides:	postgresql-devel
 
 %description devel
 The postgresql92-devel package contains the header files and libraries
@@ -227,12 +226,10 @@
 %package plperl
 Summary:	The Perl procedural language for PostgreSQL
 Group:		Applications/Databases
-Requires:	%{name}-server = %{version}-%{release}
+Requires:	%{name}-server = %{version}-%{release}, local-perl = 4:5.10.0
 %ifarch ppc ppc64
-BuildRequires:	perl-devel
+BuildRequires:	local-perl-devel
 %endif
-Obsoletes:	postgresql-pl
-Provides:	postgresql-plperl
 
 %description plperl
 PostgreSQL is an advanced Object-Relational database management
@@ -246,8 +243,6 @@
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
 Requires:	%{name}-server = %{version}
-Obsoletes:	postgresql-pl
-Provides:	postgresql-plpython
 
 %description plpython
 PostgreSQL is an advanced Object-Relational database management
@@ -261,8 +256,6 @@
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
 Requires:	%{name}-server = %{version}
-Obsoletes:	postgresql-pl
-Provides:	postgresql-pltcl
 
 %description pltcl
 PostgreSQL is an advanced Object-Relational database management
@@ -275,7 +268,6 @@
 Summary:	The test suite distributed with PostgreSQL
 Group:		Applications/Databases
 Requires:	%{name}-server = %{version}-%{release}
-Provides:	postgresql-test
 
 %description test
 PostgreSQL is an advanced Object-Relational database management
@@ -321,13 +313,14 @@
 %endif
 %if %plperl
 	--with-perl \
+	--with-libraries=/usr/local/lib64/perl5/5.10.0/x86_64-linux/CORE/libperl.so \
 %endif
 %if %plpython
 	--with-python \
 %endif
 %if %pltcl
 	--with-tcl \
-	--with-tclconfig=%{_libdir} \
+	--with-tclconfig=/usr/lib64 \
 %endif
 %if %ssl
 	--with-openssl \
@@ -520,7 +513,7 @@
 	-c "PostgreSQL Server" -u 26 postgres >/dev/null 2>&1 || :
 touch /var/log/pgsql
 chown postgres:postgres /var/log/pgsql
-chmod 0700 /var/log/pgsql
+chmod 0600 /var/log/pgsql
 
 %post server
 chkconfig --add postgresql-9.2
@@ -907,6 +900,13 @@
 %endif
 
 %changelog
+* Thu May 16 2013 Jon Jensen <jon@endpoint.com> - 9.2.4-1PGDG.ep
+- Rebuild for End Point local-perl.
+- Disable integer datetimes to preserve upgradability using pg_upgrade.
+- Disentangle from old RPM provides such as "postgresql" that are independent of this package.
+- Don't make /var/log/pgsql executable.
+- Cope with our munged %_libdir for PL/Tcl and %_sbindir for update-alternatives.
+
 * Tue Apr 02 2013 Jeff Frost <jeff@pgexperts.com> - 9.2.4-1PGDG
 - Update to 9.2.4, per changes described at:
   http://www.postgresql.org/docs/9.2/static/release-9-2-4.html

postgresql-9.2.4-RHEL6.spec-ep.diff

--- postgresql-9.2.spec.orig	2013-04-01 19:10:45.000000000 -0400
+++ postgresql-9.2.spec	2013-05-16 18:20:19.897404218 -0400
@@ -57,7 +57,7 @@
 %{!?pltcl:%define pltcl 1}
 %{!?plperl:%define plperl 1}
 %{!?ssl:%define ssl 1}
-%{!?intdatetimes:%define intdatetimes 1}
+%{!?intdatetimes:%define intdatetimes 0}
 %{!?kerberos:%define kerberos 1}
 %{!?nls:%define nls 1}
 %{!?xml:%define xml 1}
@@ -67,10 +67,13 @@
 %{!?uuid:%define uuid 1}
 %{!?ldap:%define ldap 1}
 
+# Work around local-perl redefinitions
+%define _sbindir /usr/sbin
+
 Summary:	PostgreSQL client programs and libraries
 Name:		%{oname}%{packageversion}
 Version:	9.2.4
-Release:	1PGDG%{?dist}
+Release:	1PGDG.didt%{?dist}
 License:	PostgreSQL
 Group:		Applications/Databases
 Url:		http://www.postgresql.org/ 
@@ -91,7 +94,7 @@
 Patch6:		postgresql-perl-rpath.patch
 Patch8:		postgresql-prefer-ncurses.patch
 
-Buildrequires:	perl glibc-devel bison flex
+Buildrequires:	local-perl = 4:5.14.1, glibc-devel, bison, flex
 Requires:	/sbin/ldconfig initscripts
 
 %if %plperl
@@ -144,7 +147,6 @@
 Requires(postun):	%{_sbindir}/update-alternatives
 
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
-Provides:	postgresql
 
 %description
 PostgreSQL is an advanced Object-Relational database management system
@@ -166,8 +168,6 @@
 %package libs
 Summary:	The shared libraries required for any PostgreSQL clients
 Group:		Applications/Databases
-Provides:	libpq.so
-Provides:	postgresql-libs
 
 %description libs
 The postgresql92-libs package provides the essential shared libraries for any 
@@ -180,7 +180,6 @@
 Group:		Applications/Databases
 Requires:	/usr/sbin/useradd /sbin/chkconfig 
 Requires:	%{name} = %{version}-%{release}
-Provides:	postgresql-server
 
 %description server
 The postgresql92-server package includes the programs needed to create
@@ -193,10 +192,12 @@
 PostgreSQL databases and/or your own PostgreSQL server. You also need
 to install the postgresql package.
 
+This version is built with --disable-integer-datetimes to enable use of
+pg_upgrade.
+
 %package docs
 Summary:	Extra documentation for PostgreSQL
 Group:		Applications/Databases
-Provides:	postgresql-docs
 
 %description docs
 The postgresql92-docs package includes the SGML source for the documentation
@@ -209,7 +210,6 @@
 Summary:	Contributed source and binaries distributed with PostgreSQL
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
-Provides:	postgresql-contrib
 
 %description contrib
 The postgresql92-contrib package contains contributed packages that are
@@ -219,7 +219,6 @@
 Summary:	PostgreSQL development header files and libraries
 Group:		Development/Libraries
 Requires:	%{name} = %{version}-%{release}
-Provides:	postgresql-devel
 
 %description devel
 The postgresql92-devel package contains the header files and libraries
@@ -232,12 +231,10 @@
 %package plperl
 Summary:	The Perl procedural language for PostgreSQL
 Group:		Applications/Databases
-Requires:	%{name}-server = %{version}-%{release}
+Requires:	%{name}-server = %{version}-%{release}, local-perl = 4:5.14.1
 %ifarch ppc ppc64
-BuildRequires:	perl-devel
+BuildRequires:	local-perl-devel
 %endif
-Obsoletes:	postgresql-pl
-Provides:	postgresql-plperl
 
 %description plperl
 PostgreSQL is an advanced Object-Relational database management
@@ -251,8 +248,6 @@
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
 Requires:	%{name}-server = %{version}
-Obsoletes:	postgresql-pl
-Provides:	postgresql-plpython
 
 %description plpython
 PostgreSQL is an advanced Object-Relational database management
@@ -266,8 +261,6 @@
 Group:		Applications/Databases
 Requires:	%{name} = %{version}
 Requires:	%{name}-server = %{version}
-Obsoletes:	postgresql-pl
-Provides:	postgresql-pltcl
 
 %description pltcl
 PostgreSQL is an advanced Object-Relational database management
@@ -280,7 +273,6 @@
 Summary:	The test suite distributed with PostgreSQL
 Group:		Applications/Databases
 Requires:	%{name}-server = %{version}-%{release}
-Provides:	postgresql-test
 
 %description test
 PostgreSQL is an advanced Object-Relational database management
@@ -326,13 +318,14 @@
 %endif
 %if %plperl
 	--with-perl \
+	--with-libraries=/usr/local/lib64/perl5/5.14.1/x86_64-linux/CORE/libperl.so \
 %endif
 %if %plpython
 	--with-python \
 %endif
 %if %pltcl
 	--with-tcl \
-	--with-tclconfig=%{_libdir} \
+	--with-tclconfig=/usr/lib64 \
 %endif
 %if %ssl
 	--with-openssl \
@@ -525,7 +518,7 @@
 	-c "PostgreSQL Server" -u 26 postgres >/dev/null 2>&1 || :
 touch /var/log/pgsql
 chown postgres:postgres /var/log/pgsql
-chmod 0700 /var/log/pgsql
+chmod 0600 /var/log/pgsql
 
 %post server
 chkconfig --add postgresql-9.2
@@ -912,6 +905,13 @@
 %endif
 
 %changelog
+* Thu May 16 2013 Jon Jensen <jon@endpoint.com> - 9.2.4-1PGDG.ep
+- Rebuild for End Point local-perl.
+- Disable integer datetimes to preserve upgradability using pg_upgrade.
+- Disentangle from old RPM provides such as "postgresql" that are independent of this package.
+- Don't make /var/log/pgsql executable.
+- Cope with our munged %_libdir for PL/Tcl and %_sbindir for update-alternatives.
+
 * Tue Apr 02 2013 Jeff Frost <jeff@pgexperts.com> - 9.2.4-1PGDG
 - Update to 9.2.4, per changes described at:
   http://www.postgresql.org/docs/9.2/static/release-9-2-4.html