Re: Create array of data from JSONB in PG 9.5

[Adrian Klaver]

On 11/15/19 2:01 AM, Arup Rakshit wrote:
Hi,
I wrote the below SQL which works and give me what I want, but it doesn’t work 
in 9.5 version. I wrote this query in PG 10. I want to change it so that I can 
run it on 9.5 as production using 9.5 version. I need help on this.

SELECT DISTINCT
        ARRAY [jsonb_array_elements(data) ->> 'group', 
jsonb_array_elements(jsonb_array_elements(data) -> 'properties') ->> 'name']
FROM
        "vessels"
WHERE
        "vessels"."deleted_at" IS NULL
        AND "vessels"."company_id" = '7d105acd-be5a-4225-a2db-b549105e4172';


When I ran the same query to production I get error:

ERROR:  set-valued function called in context that cannot accept a set

I would break this down into smaller units to see what is actually 
triggering the above ERROR. In other words run the 
jsonb_array_elements() independently and then start adding them together.



Thanks,

Arup Rakshit
a...@zeit.io








--
Adrian Klaver
adrian.kla...@aklaver.com