Christoph Berg <myon@debian.org> writes:
> Re: PG Bug reporting form 2019-03-26 <15714-565b5e5a289218f5@postgresql.org>
>> AIBE01PR=# create extension plctl;
>> ERROR: could not open extension control file
>> "/usr/pgsql-11/share/extension/plctl.control": No such file or directory
> The extension is shipped in a separate package that you need to
> install on the operating system.
Perhaps even more to the point: the extension is pltcl, not plctl.
(Or at least, I assume you are after the Tcl PL extension.
If there is a "plctl", I haven't heard about it.)
regards, tom lane
