exports.up = knex => Promise.resolve()
    .then(() => knex.raw(`
        CREATE FUNCTION search_releases(search text) RETURNS SETOF releases AS $$
                SELECT * FROM releases
                WHERE
                title ILIKE ('%' || search || '%') OR
                url ILIKE ('%' || search || '%')
        $$ LANGUAGE SQL STABLE;
    `));

exports.down = knex => Promise.resolve()
    .then(() => knex.raw(`
        DROP FUNCTION IF EXISTS search_releases;
    `));