WordPress database error: [Key 'type_status_date' doesn't exist in table 'wp_posts']
SELECT post_modified_gmt FROM ( SELECT @rownum:=0 ) init JOIN wp_posts USE INDEX( type_status_date ) WHERE post_status IN ('publish') AND post_type = 'product' AND ( @rownum:=@rownum+1 ) % 1000 = 0 ORDER BY post_modified_gmt ASC