INNER JOIN civicrm_price_field_value value ON ( value.id = line.price_field_value_id )
INNER JOIN civicrm_price_field field ON ( value.price_field_id = field.id )
WHERE participant.event_id = %1
+ AND line.qty > 0
{$statusIdClause}
{$isTestClause}
{$skipParticipantClause}";