SELECT /* 12.0: bug#4526784 */
organization_id,
decode(master_organization_id, null, organization_id, master_organization_id) AS master_organization_id,
master_organization_id AS dummy_organization_id,
SUM(organization_id),
COUNT(organization_id)
FROM
INV.MTL_PARAMETERS
GROUP BY
organization_id,
master_organization_id