CREATE TABLE random_uuids_table (
id SERIAL PRIMARY KEY,
meta JSONB
);
INSERT INTO random_uuids_table (meta)
SELECT jsonb_agg(uuid_generate_v4()) FROM generate_series(1, 100 * 50) i
group by i % 100
;
select *, jsonb_array_length(meta) from random_uuids_table limit 10