Sandbox

SELECT 
  *, 
  cscart_seo_names.name as seo_name, 
  cscart_seo_names.path as seo_path 
FROM 
  cscart_categories 
  LEFT JOIN cscart_category_descriptions ON cscart_category_descriptions.category_id = cscart_categories.category_id 
  AND cscart_category_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = 417 
  AND cscart_seo_names.type = 'c' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'en' 
  AND cscart_seo_names.company_id = cscart_categories.company_id 
WHERE 
  cscart_categories.category_id = 417 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.company_id = 1

Query time 0.00049

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows
1	SIMPLE	cscart_categories	const	PRIMARY,c_status,p_category_id,idx_category_id	PRIMARY	3	const	1
1	SIMPLE	cscart_category_descriptions	const	PRIMARY	PRIMARY	9	const,const	1
1	SIMPLE	cscart_seo_names	const	PRIMARY,dispatch	PRIMARY	210	const,const,const,const,const	1

Result

category_id	parent_id	id_path	level	company_id	usergroup_ids	status	product_count	position	timestamp	size_chart_id	is_op	localization	age_verification	age_limit	parent_age_verification	parent_age_limit	selected_views	default_view	product_details_view	product_columns	is_trash	staff_notes	action	lang_code	category	description	meta_keywords	meta_description	page_title	age_warning_message	custom_header	name	object_id	type	dispatch	path	seo_name	seo_path
417	513	513/417	2	1	0	A	12	10	1342389600	0	N		N	0	N	0			default	0	N			en	PVC Windows	<div class="col-lg-6 col-lg-pull-6"> <p class="lead" style="text-align: justify;">Windows is one of the key investment during construction of the house, because they are responsible not only for energy standard, but also comfort of the inhabitants. PVC PREMIUM can be equipped with energy-saving profiles, two-chamber glazing and steel reinforcement. A number of high-tech accessories, which are already the equipment of standard windows, provide high thermal and acoustic insulation and comfort. Plastic PREMIUM windows guarantee the highest standard of energy efficiency, security, peace and aesthetics. Our portfolio contains the solutions that stand out in terms of solidity and design - in order to achieve attractive visual effect. In terms of energy efficiency and other usable parameters, the systems meet the stringent technical standards and are the answer to all requirements of modern investors and architects, allowing to uncompromising performance of the boldest projects.</p> </div>						pvc-windows	417	c		513	pvc-windows	513