`contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
`sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
- FROM `item` USE INDEX (`uid_wall_changed`, `wall_uid_changed`) $sql_post_table
+ FROM `item` USE INDEX (`uid_wall_changed`) $sql_post_table
STRAIGHT_JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
AND (NOT `contact`.`blocked` OR `contact`.`pending`)
LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`