Sandbox

SELECT 
  *, 
  cscart_product_tabs.status as status, 
  cscart_product_tabs.block_id as block_id, 
  cscart_product_tabs.company_id as company_id, 
  cscart_product_tabs_descriptions.name as name 
FROM 
  cscart_product_tabs 
  LEFT JOIN cscart_product_tabs_descriptions ON cscart_product_tabs.tab_id = cscart_product_tabs_descriptions.tab_id 
  LEFT JOIN cscart_bm_blocks ON cscart_bm_blocks.block_id = cscart_product_tabs.block_id 
WHERE 
  cscart_product_tabs_descriptions.lang_code = 'da' 
ORDER BY 
  position

Query time 0.00149

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "14.02"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "2.20"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_product_tabs_descriptions",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY"
            ],
            "rows_examined_per_scan": 22,
            "rows_produced_per_join": 2,
            "filtered": "10.00",
            "cost_info": {
              "read_cost": "6.10",
              "eval_cost": "0.44",
              "prefix_cost": "6.54",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "tab_id",
              "lang_code",
              "name"
            ],
            "attached_condition": "((`atulecarter_atul_demo1`.`cscart_product_tabs_descriptions`.`lang_code` = 'da') and (`atulecarter_atul_demo1`.`cscart_product_tabs_descriptions`.`tab_id` is not null))"
          }
        },
        {
          "table": {
            "table_name": "cscart_product_tabs",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "tab_id"
            ],
            "key_length": "3",
            "ref": [
              "atulecarter_atul_demo1.cscart_product_tabs_descriptions.tab_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 2,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "2.20",
              "eval_cost": "0.44",
              "prefix_cost": "9.18",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "tab_id",
              "tab_type",
              "block_id",
              "template",
              "addon",
              "position",
              "status",
              "is_primary",
              "product_ids",
              "company_id",
              "show_in_popup"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_bm_blocks",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id"
            ],
            "key_length": "4",
            "ref": [
              "atulecarter_atul_demo1.cscart_product_tabs.block_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 2,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "2.20",
              "eval_cost": "0.44",
              "prefix_cost": "11.82",
              "data_read_per_join": "492"
            },
            "used_columns": [
              "block_id",
              "type",
              "properties",
              "company_id",
              "storefront_id"
            ],
            "attached_condition": "<if>(is_not_null_compl(cscart_bm_blocks), (`atulecarter_atul_demo1`.`cscart_bm_blocks`.`block_id` = `atulecarter_atul_demo1`.`cscart_product_tabs`.`block_id`), true)"
          }
        }
      ]
    }
  }
}

Result

tab_id	tab_type	block_id	template	addon	position	status	is_primary	show_in_popup	lang_code	name	type	properties	storefront_id
1	T	0	blocks/product_tabs/description.tpl		1	A	Y	N	da	Description
2	T	0	blocks/product_tabs/features.tpl		2	A	Y	N	da	Features
3	T	0	blocks/product_tabs/files.tpl		3	A	Y	N	da	Files
4	T	0	addons/tags/blocks/product_tabs/tags.tpl	tags	4	A	Y	N	da	Tags
5	T	0	addons/attachments/blocks/product_tabs/attachments.tpl	attachments	5	A	Y	N	da	Attachments
6	B	62		product_variations	6	A	N	Y	da	View all variations as list	products	a:5:{s:8:"template";s:61:"addons/product_variations/blocks/products/variations_list.tpl";s:46:"product_variations.hide_add_to_wishlist_button";s:1:"N";s:23:"hide_add_to_cart_button";s:1:"N";s:36:"product_variations.show_product_code";s:1:"Y";s:44:"product_variations.show_variation_thumbnails";s:1:"Y";}	1
7	B	63	addons/product_bundles/blocks/product_bundles.tpl	product_bundles	7	A	N	N	da	Bundles with this product	product_bundles	a:1:{s:8:"template";s:49:"addons/product_bundles/blocks/product_bundles.tpl";}	1
8	T	0	addons/discussion/blocks/product_tabs/discussion.tpl	discussion	8	A	Y	N	da	Reviews
9	T	0	addons/product_reviews/blocks/product_tabs/product_reviews.tpl	product_reviews	9	A	Y	N	da	Reviews
10	T	0	addons/required_products/blocks/product_tabs/required_products.tpl	required_products	10	A	Y	N	da	Required products
11	T	0	addons/ec_hotel_booking/blocks/product_tabs/service_product.tpl	ec_hotel_booking	11	A	Y	N	da	_service_product