the data is json array
[{ "customer": "John Doe", "items": {"product": "Beer","qty": 6}}, { "staff" : "Jack" }]
Store it as json (or jsonb)
create table sameesh
(
data json
);
insert into sameesh (data)
values
('[{ "customer": "John Doe", "items": {"product": "Beer","qty": 6}}, { "staff" : "Jack" }]');