SELECT 
  cscart_et_quick_info.block_id, 
  cscart_et_quick_info.data as settings, 
  cscart_et_quick_info.status, 
  cscart_et_quick_info.position, 
  cscart_et_quick_info_title.data as data, 
  cscart_et_quick_info_data.content_id as content_id, 
  cscart_et_quick_info_descr.data as v_data 
FROM 
  cscart_et_quick_info 
  LEFT JOIN cscart_et_quick_info_title ON cscart_et_quick_info_title.block_id = cscart_et_quick_info.block_id 
  LEFT JOIN cscart_et_quick_info_data ON cscart_et_quick_info_data.block_id = cscart_et_quick_info.block_id 
  LEFT JOIN cscart_et_quick_info_descr ON cscart_et_quick_info_descr.content_id = cscart_et_quick_info_data.content_id 
WHERE 
  1 
  AND cscart_et_quick_info_title.lang_code = 'en' 
  AND cscart_et_quick_info_descr.lang_code = 'en' 
  AND cscart_et_quick_info.status = 'A' 
  AND cscart_et_quick_info_data.company_id = 541 
ORDER BY 
  cscart_et_quick_info.position asc

Query time 0.00240

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "986.49"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "43.65"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_et_quick_info",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY"
            ],
            "rows_examined_per_scan": 7,
            "rows_produced_per_join": 0,
            "filtered": "14.29",
            "cost_info": {
              "read_cost": "2.20",
              "eval_cost": "0.20",
              "prefix_cost": "2.40",
              "data_read_per_join": "23"
            },
            "used_columns": [
              "block_id",
              "data",
              "status",
              "position"
            ],
            "attached_condition": "(`webmarco`.`cscart_et_quick_info`.`status` = 'A')"
          }
        },
        {
          "table": {
            "table_name": "cscart_et_quick_info_title",
            "access_type": "eq_ref",
            "possible_keys": [
              "block_id"
            ],
            "key": "block_id",
            "used_key_parts": [
              "block_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "webmarco.cscart_et_quick_info.block_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.00",
              "eval_cost": "0.20",
              "prefix_cost": "3.60",
              "data_read_per_join": "23"
            },
            "used_columns": [
              "block_id",
              "data",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_et_quick_info_data",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY"
            ],
            "rows_examined_per_scan": 4365,
            "rows_produced_per_join": 43,
            "filtered": "1.00",
            "using_join_buffer": "Block Nested Loop",
            "cost_info": {
              "read_cost": "799.56",
              "eval_cost": "8.73",
              "prefix_cost": "890.46",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "content_id",
              "block_id",
              "company_id"
            ],
            "attached_condition": "((`webmarco`.`cscart_et_quick_info_data`.`block_id` = `webmarco`.`cscart_et_quick_info`.`block_id`) and (`webmarco`.`cscart_et_quick_info_data`.`company_id` = 541))"
          }
        },
        {
          "table": {
            "table_name": "cscart_et_quick_info_descr",
            "access_type": "eq_ref",
            "possible_keys": [
              "content_id"
            ],
            "key": "content_id",
            "used_key_parts": [
              "content_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "webmarco.cscart_et_quick_info_data.content_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 43,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "43.65",
              "eval_cost": "8.73",
              "prefix_cost": "942.84",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "content_id",
              "data",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}