> On 11 September 2017 at 23:55, Dmitry Dolgov <9erthalion6@gmail.com> wrote: > > 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!
So, I've implemented a patch for that in form of a `DEPENDS ON` syntax for creating a function. Basically it looks like this (and initially I was looking for something like that in the documentation,
you can find a complete example in the test `create_function_3.sql`):
```
CREATE FUNCTION custom_subscripting_extract(internal)
RETURNS internal;
CREATE FUNCTION custom_subscripting_assign(internal)
RETURNS internal;
CREATE FUNCTION custom_subscript_parse(internal)
RETURNS internal
DEPENDS ON custom_subscripting_extract, custom_subscripting_assign;
```
I hope it sounds reasonable and can help to address a problem with dependencies between functions.
