How to query on embeds_many field?

I have a sample query here,
query = from u in User, where: fragment("?->>? ILIKE ?", u.information, “city”, ^“Asgard”)
However, I managed to make it work only for embeds_one field.
I have a case where I need to fetch a data by querying on list of maps that has been implemented using embeds_many. It returns an error showing: (undefined_function): operator does not exist: jsonb[].

What database and what version? This is PostgreSQL specific as far as I know.