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CREATE TABLE promos ( id int, contracts_ids json ); INSERT INTO promos VALUES (1, '["11","12"]'), (3, '["11","12","13"]'); CREATE TABLE contract ( id int, name varchar(64) ); INSERT INTO contract VALUES (11, "A"),(12, "B"),(13, "C"); SELECT contracts_ids, JSON_ARRAYAGG(name) FROM promos LEFT JOIN contract ON JSON_CONTAINS(contracts_ids, CONCAT('"', contract.id, '"')) GROUP BY promos.id, contracts_ids;

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