php - How to optimize this query which taking long time.? -


When working with the following query on mysql, it is executed around 10sec. 

  SELECT photo_image_uploaded, b.bottle_id, b.date, b.parentid as SQL_CALC_FOUND_ROWS DISTINCT b.appearance_id, b.photo_album_id, b.eventcmmnt_id, b.id, b.mem_id, b.subj , B.body, b.image_link, b. The from_id, b.visible_to, pa.photo_big image_link, b.post_via, b.youtubeLink, b.link_image, b.link_url, b.auto_genrate_text, badges.badge_img, badges.badge_bottle_img, Bulletin of b.type, b b.share_url_title as members of the INNER network N on (n.mem_id = b.mem_id) Join left Join badge on (Bikbotl_aidi = Bajkbaj_aidi) left Join as photo_album pa (pa.photo_id = b.photo_album_id) Join mem on (b.mem_id = mem.mem_id and mem.deleted & lt; & gt; 'Y') where b.parentid = '0' and ( '$ userid' (n .frd_id, b.mem_id, B.from_id) by b.id command in b.id DESC LIMIT within the barrier of 0,10

in the group There are many frd_id, mem_id, from_id so I think the above queries are slowly executing ... so please help optimize the question above

Check that your fields are indexed, which is used to connect.


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