Обсуждение: PostgreSQL, C-Extension, calling other Functions

I´ve written some PostgreSQL C-Extensions (for the first time...) and they
work as expected.

But now I want to call other functions from inside the C-Extensions (but not
via SPI_execute),
for example "regexp_match()" or from other extensions like PostGIS
"ST_POINT" etc...

I think "fmgr" is the key - but I didn't find any examples.

Greetings from Berlin
-Stefan Wolf-

DirectFunctionCall() is what you’re looking for.
Odd choice of list to ask?
P

> On Oct 11, 2019, at 1:13 AM, Stefan Wolf <sw@zpmt.de> wrote:
>
> I´ve written some PostgreSQL C-Extensions (for the first time...) and they
> work as expected.
>
> But now I want to call other functions from inside the C-Extensions (but not
> via SPI_execute),
> for example "regexp_match()" or from other extensions like PostGIS
> "ST_POINT" etc...
>
> I think "fmgr" is the key - but I didn't find any examples.
>
> Greetings from Berlin
> -Stefan Wolf-
>
>
>
>
>