On 8/14/23 15:37, Pavel Stehule wrote: > po 14. 8. 2023 v 15:09 odesílatel Erik Rijkers <er@xs4all.nl> napsal: > >> Op 8/14/23 om 14:51 schreef Pavel Stehule:> po 14. 8. 2023 v 11:32 >> odesílatel Alvaro Herrera <alvherre@alvh.no-ip.org> >> > with proposed function I can write >> > >> > select jsonb_populate_array(null:date[], >> > '["2023-07-13","2023-07-14"]'::jsonb) >> > >> Not yet committed, but outstanding >> SQL/JSON patches (v11) will let you do: >> >> select json_query( >> '["2023-07-13", "2023-07-14"]'::jsonb >> , '$' returning date[] >> ); >> json_query >> ------------------------- >> {2023-07-13,2023-07-14} >> (1 row) >> >> That's (more or less) what you want, no? >> > > Yes, the functionality is exactly the same, but still maybe for completeness > the function json_populate_array can be nice. > > In old API the transformations between json and row/record types is well > covered, but for array, only direction array->json is covered
I don't think we should be extending the old API when there are Standard ways of doing the same thing. In fact, I would like to see the old way slowly be deprecated.
> I think so this can be +/- 40 lines of C code
It seems to me like a good candidate for an extension.
Unfortunately, these small extensions have zero chance to be available for users that use some cloud postgres.
