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SELECT 
  cscart_images_links.*, 
  cscart_images.image_path, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_x, 
  cscart_images.image_y, 
  cscart_images.image_id as images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.detailed_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'se' 
WHERE 
  cscart_images_links.object_type = 'product' 
  AND cscart_images_links.type = 'M' 
  AND cscart_images_links.object_id IN (
    629, 646, 635, 641, 631, 636, 10109, 10108
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00078

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	cscart_images_links	range	object_id	object_id	81		8	Using index condition; Using filesort
1	SIMPLE	cscart_images	eq_ref	PRIMARY	PRIMARY	3	mahm3t_cs443.cscart_images_links.detailed_id	1	Using where
1	SIMPLE	cscart_common_descriptions	eq_ref	PRIMARY	PRIMARY	107	mahm3t_cs443.cscart_images.image_id,const,const	1	Using where

Result

pair_id	object_id	object_type	detailed_id	type	image_path	image_x	image_y	images_image_id
1684	629	product	1629	M	Steigtritt_neu.png	367	359	1629
1686	631	product	1631	M	wspornik_u.jpg	600	600	1631
1690	635	product	1635	M	wspornik_przyscienny.jpg	600	600	1635
1691	636	product	1636	M	lacznik_lawy.jpg	600	600	1636
1696	641	product	1641	M	uchwyt_plotka_u.jpg	600	600	1641
1701	646	product	1646	M	uchwyt_bala_dbdc.jpg	600	600	1646
26759	10108	product	22334	M	brvent_00.png	800	800	22334
26760	10109	product	22335	M	blachventtop_00.png	800	800	22335