Postgres: Update JSON Array and remove element matched with key - postgresql

Question

Given the table below
drop table if exists documents;
create table documents(docu_id text, attachments jsonb);
insert into documents values
('001',
'[{"province":"test province","city":"test city","barangay":"test barangay,"street":"test ST"},
{"province":"test province 2","city":"test city 2","barangay":"test barangay 2","street":"test street 2"}]'
),
('002',
'[{"province":"test province 2 1":"VALENZUELA CITY","test barangay 2 1":"test barangay 2 1","street":"test street 2 1"},
{"province":"test province 2 2","city":"test city 2 2","barangay":"test barangay 2 2","street":"test strett 2 2"}]'
);
How can i update json array matching street key word: test ST
expected output
[{"province":"test province 2","city":"test city 2","barangay":"test barangay 2","street":"test street 2"}]
[{"province":"test province 2 1":"VALENZUELA CITY","test barangay 2 1":"test barangay 2 1","street":"test street 2 1"},
{"province":"test province 2 2","city":"test city 2 2","barangay":"test barangay 2 2","street":"test strett 2 2"}]

Answer 1

demo:db<>fiddle
SELECT
docu_id,
jsonb_agg(elements.value) -- 3
FROM
documents,
jsonb_array_elements(attachments) AS elements -- 1
WHERE elements ->> 'street' != 'test ST' -- 2
GROUP BY docu_id -- 3
Expand array elements into one row each with jsonb_array_elements()
Filter these elements by whatever you like
Group remaining elements again into a JSON array using aggregate function jsonb_agg()
Update:
UPDATE documents d
SET attachments = s.new_attachments
FROM (
SELECT
docu_id,
jsonb_agg(elements.value) AS new_attachments
FROM
documents,
jsonb_array_elements(attachments) AS elements
WHERE elements.value ->> 'street' != 'test ST'
GROUP BY docu_id
) s
WHERE d.docu_id = s.docu_id
demo:db<>fiddle

Answer 2

Updating remaining value from json matched data instead no update happened. it will update as null or empty json.
UPDATE street_lov SET street = sub
FROM COALESCE((SELECT jsonb_agg(elements.value) as elements FROM street_lov,
jsonb_array_elements(street::jsonb) AS elements
WHERE elements.value ->> 'street' != 'test ST'
AND id = (SELECT id FROM street_id)
GROUP BY id ), '[]') sub where street_lov.id = (select id from street_id)
RETURNING street_lov.id,street