SELECT 
  cscart_product_filters.*, 
  cscart_product_features.feature_type 
FROM 
  cscart_product_filters 
  LEFT JOIN cscart_product_features ON cscart_product_filters.feature_id = cscart_product_features.feature_id 
WHERE 
  cscart_product_filters.filter_id = 314

Query time 0.00012

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_product_filters const PRIMARY PRIMARY 3 const 1
1 SIMPLE cscart_product_features const PRIMARY PRIMARY 3 const 1

Result

filter_id categories_path company_id feature_id position field_type status round_to display_count display tenant_id seo_enabled index_type index_with seo_sef_filter seo_path_order feature_type
314 0 551 0 A 0.01 10 Y 0 Y one_only Y 0 S