Question on tablefunc extension

Hello,

We downloaded postgresql software from this site, https://www.postgresql.org/ftp/source/v12.1/, as a tar ball file (postgresql-12.1.tar.bz2). So we didn't do install the 'postgresql-contrib' option.

Our developers asked that we add on the "tablefunc" extension to the existing postgresql instance. It appears there is no source code (*.tar.gz file) for "tablefunc". Is that correct?

What is the easiest way to get the "tablefunc" installed as an extension to the existing postgresql instance?

Thanks for your help!

Dan

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