PostgreSQL has allowed functions to be written in plenty of programming languages for at least 10 years.
Also, with Oracle it was possible to use Java in addition to PL/SQL since 2002. I don't know about Sybase but I guess it probably got
Perhaps you failed to notice, but 2002 is only just shy of 12 years ago. The word "decades" (note the fact that this is the plural not the singular) implies at least 20 years. So, the poster you replied to was exactly correct, they did not have this "decades ago".