[GitHub] [arrow-datafusion] GavinRay97 opened a new issue #1897: Postgres `ARRAY_AGG(JSON_BUILD_OBJECT())` equivalent? Possible with `struct` SQL operator?

[GitBox <gi...@apache.org>]

GavinRay97 opened a new issue #1897:
URL: https://github.com/apache/arrow-datafusion/issues/1897


   Curious whether it's possible to write SQL queries that do nested JSON selections in Datafusion.
   IE, something like the below:
   
   ```sql
   select json_agg(json_build_object(
     'id', "houses"."id",
     'address', "houses"."address",
     'users', (
       select json_agg(json_build_object(
         'id', "users"."id",
         'name', "users"."name"
       ))
       from "users"
       where "users"."house_id" = "houses"."id"
     )
   ))
   from "houses" as "houses"
   ```
   
   Thank you =)


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