"Sergey N. Yatskevich" <syatskevich(at)2100(dot)gosniias(dot)ru> writes:
> RenameLanguage procedure in src/backend/commands/proclang.c open
> and update pg_catalog.pg_shadow table instead pg_catalog.pg_language.
Wow. Apparently this has been broken since it was written, and
nobody ever tested it. Thanks!
regards, tom lane