BACKUP/RESTORE - file rights

Hi, Doing a backup of db tables under mysql using $sql = '

           BACKUP TABLE
               test_table
           TO
               "backup"
       '; give the backup files the rights of the mysql server. I my environemt this is:

user: mysql group: daemon If the apache isn't a member of the daemon group, php can not do some work on this files, ex.: file compression. Question: Is this the case, that the mysql and the apache server where members of the same group in most server environements? Thanks, Armand