postgres pull out multiple values in a JSON array

Question

I have a table where one of the columns is a JSON array. for each key there are multiple values.

So I use this query to select out the JSON

select  x.cola eventid, x.colb
from special_event_conflicts t
cross join lateral json_each(t.eventid) as x(cola, colb)

which produces

"525947";"{"f1":133,"f2":2428,"f3":"MULTILINESTRING((1013339.30779158 180228.160778359,1013395.51179424 180119.844273224))"}"

what I want is to be able to select out the f1,f2,f3 values into there own columns

Answer 1

Click: demo:db<>fiddle

The most simple way is using the ->> operator:

SELECT 
    x.event_id,
    x.colb ->> 'f1' as f1,
    x.colb ->> 'f2' as f2,
    x.colb ->> 'f3' as f3
FROM <YOUR QUERY>