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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 = 'de' 
WHERE 
  cscart_images_links.object_type = 'product' 
  AND cscart_images_links.type = 'M' 
  AND cscart_images_links.object_id IN (
    515, 8686, 9862, 9863, 10125, 10124, 
    561, 9810, 560, 559, 9859, 9858
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00101

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		12	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	alt	image_x	image_y	images_image_id
1590	515	product	1535	M	vp70_biale13464425905041155ed36c7.jpg		369	400	1535
1613	559	product	1558	M	portos_cc1000.jpg		800	450	1558
1614	560	product	1559	M	portos_tl1000.jpg	Top mounted shutters TL1000	800	450	1559
1615	561	product	1560	M	portos_tp1000.jpg	Aufsatzrollladen Thermo-Prestige 1000	800	450	1560
11633	8686	product	8126	M	v82_biale.jpg		369	447	8126
13299	9810	product	8886	M	portos_st2000.jpg	Vorbaurollladen Standard 2000	800	450	8886
28355	9859	product	23930	M	ec_geneo_001.jpg		478	629	23930
28361	9858	product	23936	M	ec_synego_001.jpg		485	630	23936
28367	10124	product	23942	M	ec_novel_001.jpg		482	630	23942
28373	9863	product	23948	M	ec_vigo_001.jpg		503	630	23948
28376	10125	product	23951	M	ec_livio_001.jpg		482	630	23951
28382	9862	product	23957	M	ec_ineo_001.jpg		503	630	23957