for obj in d.values():
for key, value in obj.items():
print(key, ":", value)
for key, value in d.items():
print(type(key))
print(type(value))
create table images(id int, image bytea);
insert into images values (1, pg_read_file('/path/to/image.jpg')::bytea);create table images (id int, image oid);
insert into images values (1, lo_import('/path/to/image.jpg'));