When I use below query (Doctrine 2), I was getting error, and can't use INTERVAL in query,
$qb->andWhere("(pv.appointment_date + INTERVAL 48 HOUR) >= UTC_TIMESTAMP()");
Error: Expected Doctrine\ORM\Query\Lexer::T_CLOSE_PARENTHESIS, got '48'"
If you want to use INTERVAL (in Doctrine 2, DQL) on mysql comumn field, You can use as below,
$qb->andWhere("DATE_ADD(pv.appointmentDate,48,'hour') >= UTC_TIMESTAMP()");
It will print SQL as below,
...... DATE_ADD(p0_.appointmentDate, INTERVAL 48 HOUR) >= UTC_TIMESTAMP() .....