Console: gen_random_uuid() should be available for uuid fields like now() for timestamp fields when using mutations

[Zerebokep]

Generally it would be neat to use postgres functions inside queries and mutations.

[fonzarely]

you can already.

[Zerebokep]

I mean using it in a query, not as default.

[plcplc]

As such, this is not a mechanism that Hasura provides, but rather it's Postgres itself which accepts that string as valid input text for the purpose of constructing a timestamp value (along with various others).

So unfortunately there's no existing place we could extend to provide similar support for using gen_random_uuid() for uuid columns.

Postgres it seems doesn't let you overload the accepted textual input formats of a type, but it is possible to supply your own parsing function to custom types.

So in theory you should be able to define your own uuid type which supports gen_random_uuid in addition to literal uuids, although the practical value of doing this is questionable.