Re: [HACKERS] [PATCH] Generic type subscripting

> On 11 September 2017 at 23:45, Tom Lane <tgl@sss.pgh.pa.us> wrote:

>

> Dmitry Dolgov <9erthalion6@gmail.com> writes:

> >> On 11 September 2017 at 23:19, Tom Lane <tgl@sss.pgh.pa.us> wrote:

> >> Uh, what?  Sure you can.  Just because the existing code never has a

> >> reason to create such a dependency doesn't mean it wouldn't work.

>

> > Well, I thought that `pg_depend` was not intended to be used from

> > user-defined code and it's something "internal".

>

> Well, no, we're not expecting that SQL code will manually insert rows

> there.  This feature should have some sort of SQL command that will

> set up the relevant catalog entries, including the dependencies.

> If you don't want to do that, you're going to need the runtime tests.

Sure, an SQL command for that purpose is much better than a runtime check.

I'm going to add such command to the patch, thank you for the information!