Here is what I have for now:
sa.func.string_agg(sa.select([('jsonb_array_elements')['{}'].astext]).select_from(sa.select([
sa.func.jsonb_array_elements(c.acc_licence_plates)])), ' / ')
But it's wrong.
Regards,
Maciej
czw., 14 cze 2018 o 17:25 użytkownik Maciek Olko <maciej.o...@gmail.com>
napisał:
> Hello,
> I'm having difficulty in expressing such PostgreSQL code in SQLAlchemy:
>
> select string_agg(test::jsonb#>>'{}', ' / ') from (select
> jsonb_array_elements('["raz","dwa"]') as test) as foo;
>
> At the end I'd like to have reference to real JSON column value (which is
> guaranteed to be JSON array) instead of JSON ["raz", "dwa"].
>
> Especially problematic is accessing the dynamic field in JSON-ic way.
>
> Does anyone have already encounter such or similar query? I'd be grateful
> for any help.
>
> Regards,
> Maciej
>
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