Honestly, if you don't know Linux this isn't a good way to start. Shut down your current server and install the RPMs to replace it.Download fresh PostgreSQL sources and compile them as per the PostgreSQL documentation or.If you can't find it you'll have to either: You should be able to find the PostgreSQL source code tree that your co-worker used somewhere on the system - try searching for config.log and see if there's a PostgreSQL source code tree in the same place. When you re-compile PostgreSQL use the -with-perl argument to. Install the Perl development package, which should be called perl-devel, eg: yum install perl-devel If you want PL/Perl you will need to re-compile. It seems highly likely that your co-worker installed PostgreSQL from source code and didn't enable PL/Perl. Names will vary, so do a search in your package management system.) You are probably using a packaged version instead, in which case you should install the package for postgresql-contrib or postgresql-plperl for your distro. (For anyone else reading this, it only applies to PostgreSQL installed from source code. Then proceed, but understand that you're likely to cause downtime or even data loss if you muck this up.
At minimum use pg_dump to take a SQL dump and put it on another computer. Before you do anything else, back up your database.
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