Update statement with left outer join in from clause. - response (5) by Harpreet Singh

Thanks Dieter, We have outer join used for mostly all updates and deletes on table. Client_gid is primary index for table and it is used along with other two joins for alias m. main purpose of all these 3 joins is to join rows from derived table having left outer join and table to be updated with 1-1 row match and no update doen by multiple rows from derived table.