PREIN
/bin/sh
/usr/share/rpm-helper/add-user postgresql9.2 $1 postgres /var/lib/pgsql /bin/bash
[ ! -f /var/lib/pgsql/data/PG_VERSION ] && exit 0
mypgversion=`cat /var/lib/pgsql/data/PG_VERSION`
[ $mypgversion = 9.2 ] && exit 0
echo ""
echo "You currently have database tree for Postgresql $mypgversion"
echo "You must use postgresql${mypgversion}-server"
echo "To update you Postgresql server, dump your databases"
echo "delete /var/lib/pgsql/data/ content, upgrade the server, then"
echo "restore your databases from your backup"
echo ""
exit 1
PREUN
/bin/sh
/usr/share/rpm-helper/del-service postgresql9.2 $1 postgresql
POSTIN
/bin/sh
/usr/share/rpm-helper/add-service postgresql9.2 $1 postgresql
POSTUN
/bin/sh
/usr/share/rpm-helper/del-user postgresql9.2 $1 postgres