SELECT 
  cscart_categories.*, 
  cscart_category_descriptions.*, 
  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 = 'se' 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = 499 
  AND cscart_seo_names.type = 'c' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'se' 
  AND cscart_seo_names.company_id = cscart_categories.company_id 
WHERE 
  cscart_categories.category_id = 499 
  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 = 2

Query time 0.00035

Explain
id select_type table type possible_keys key key_len ref rows Extra
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 seo_name seo_path
499 492 500/492/499 3 2 0 A 9 70 1376776800 0 N N 0 N 0 a:3:{s:21:"products_multicolumns";s:21:"products_multicolumns";s:24:"products_without_options";s:24:"products_without_options";s:10:"short_list";s:10:"short_list";} products_multicolumns default 0 N se Tillbehör <p><span style="font-size:18px;"><span style="color:#FF0000;">Klicka </span><a href="http://config.gomega.biz/swc.php?lang=us-US" target="_blank">här</a><span style="color:#FF0000;"> för att designa din egen interiör.</span></span></p> <p style="text-align: justify;">Som komplement till de dekorativa plattorna erbjuder vi lämpliga lim, fogar, grundfärger och impregneringsmedel från samma tillverkare. När du väljer dessa produkter är du säker på att allt kommer att matcha.</p> kakellim, kakellim, fogar för kakel, primer, impregnering Vi erbjuder högkvalitativa produkter som förbereder din yta innan du applicerar plattorna - primers, hjälper till att applicera plattorna - lim, avsluta kakel - fogar. Kolla in det! Lim, primers, fogar för dekorativa plattor | byggbay.se tillbehoer-dekorsten 500/492