Update all element of an array in json postgresql - sql

Question

In my table I have a jsonb type column.
Example jsonb data:
{
"id": "1",
"customer":[{"id": "1", "isPosted": "false"},{"id": "2","isPosted": "false"}]
}
Is it possible to update all element named isPosted to 'true'?

Answer 1

you can use a monkey hack here - replace the value and use result as jsonb:
t=# with c(j) as (values('{"id": "1", "customer":[{"id": "1", "isPosted": "false"},{"id": "2","isPosted": "false"}]} '::jsonb))
select *,replace(j::text,'"isPosted": "false"','"isPosted": "true"')::jsonb from c;
-[ RECORD 1 ]------------------------------------------------------------------------------------------
j | {"id": "1", "customer": [{"id": "1", "isPosted": "false"}, {"id": "2", "isPosted": "false"}]}
replace | {"id": "1", "customer": [{"id": "1", "isPosted": "true"}, {"id": "2", "isPosted": "true"}]}
finally you can do it the right way:
t=# with c(j) as (values('{"id": "1", "customer":[{"id": "1", "isPosted": "false"},{"id": "2","isPosted": "false"}]} '::jsonb))
, n as (select jsonb_set(e,'{isPosted}'::text[],'true'),j from c, jsonb_array_elements(j->'customer') with ordinality a (e,o))
select jsonb_set(j,'{customer}'::text[],jsonb_agg(jsonb_set)) from n group by j;
jsonb_set
-----------------------------------------------------------------------------------------
{"id": "1", "customer": [{"id": "1", "isPosted": true}, {"id": "2", "isPosted": true}]}
(1 row)