SELECT
f1.form_structure AS form_structure_1,
f2.form_structure AS form_structure_2,
c.*
FROM
competitions c
LEFT JOIN
forms f1 ON c.form_id = f1.id
LEFT JOIN
forms f2 ON c.secondary_form_id = f2.id;
SELECT
f1.form_structure AS form_structure_1,
f2.form_structure AS form_structure_2,
c.*
FROM
competitions c
LEFT JOIN
forms f1 ON c.form_id = f1.id
LEFT JOIN
forms f2 ON c.secondary_form_id = f2.id;