SELECT  i.id, '' AS orderkey, i.name, i.extension, i.mime, i.size, i.dimensions_width, i.dimensions_height, i.date, i.thumbnail_name, i.authorid, i.path, i.hotlink, i.realname,
                     a.realname AS authorname
                     FROM serendipity_images AS i
       LEFT OUTER JOIN serendipity_authors AS a
                    ON i.authorid = a.authorid
                        LEFT JOIN serendipity_authorgroups AS acl_a
                                   ON acl_a.authorid = 0
                            LEFT JOIN serendipity_access AS acl_acc
                                   ON (    acl_acc.artifact_mode = 'read'
                                       AND acl_acc.artifact_type = 'directory'
                                       AND acl_acc.artifact_index = i.path
                                      )

                       WHERE 1=1  AND i.path = 'fotos/'
 AND     (
                                 i.path IS NULL OR
                                        acl_acc.groupid IS NULL
                                 OR ( acl_acc.groupid = 0)
                                 OR ( acl_acc.artifact_id IS NULL
                                      
                                    )
                               )
                     GROUP BY i.id
            ORDER BY i.name ASC  LIMIT 0, 20