`allow_gid` mediumtext COMMENT 'Access Control - list of allowed groups',
`deny_cid` mediumtext COMMENT 'Access Control - list of denied contact.id',
`deny_gid` mediumtext COMMENT 'Access Control - list of denied groups',
`allow_gid` mediumtext COMMENT 'Access Control - list of allowed groups',
`deny_cid` mediumtext COMMENT 'Access Control - list of denied contact.id',
`deny_gid` mediumtext COMMENT 'Access Control - list of denied groups',