SELECT lang.name, IF(cscart_ult_language_values.value IS NULL, lang.value, cscart_ult_language_values.value) as value FROM cscart_language_values lang LEFT JOIN cscart_ult_language_values ON cscart_ult_language_values.name = lang.name AND company_id = 1 AND cscart_ult_language_values.lang_code = lang.lang_code WHERE lang.lang_code = 'en' AND lang.name IN ('order_details', 'text_order_placed_successfully', 'order_details', 'order_details', 'create_account', 'confirm_password', 'create', 'payment_instructions', 'payment_instructions', 'view_orders', 'order', 'order_details', 'text_order_placed_successfully', 'order_details', 'order_details', 'create_account', 'confirm_password', 'create', 'payment_instructions', 'payment_instructions', 'view_orders', 'order')

Query is invalid

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ult_language_values",
      "access_type": "system",
      "possible_keys": ["PRIMARY"],
      "rows": 0,
      "filtered": 0,
      "const_row_not_found": true
    },
    "table": {
      "table_name": "lang",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "392",
      "used_key_parts": ["lang_code", "name"],
      "rows": 8,
      "filtered": 100,
      "attached_condition": "lang.lang_code = 'en' and lang.`name` in ('order_details','text_order_placed_successfully','order_details','order_details','create_account','confirm_password','create','payment_instructions','payment_instructions','view_orders','order','order_details','text_order_placed_successfully','order_details','order_details','create_account','confirm_password','create','payment_instructions','payment_instructions','view_orders','order')"
    }
  }
}