expense/elect('expense_number', DB::raw('count(*) as total'))

= Illuminate\Database\Query\Builder {#8371
    +connection: Illuminate\Database\MySqlConnection {#8375},
    +grammar: Illuminate\Database\Query\Grammars\MySqlGrammar {#8374},
    +processor: Illuminate\Database\Query\Processors\MySqlProcessor {#8373},
    +bindings: [
      "select" => [],
      "from" => [],
      "join" => [],
      "where" => [],
      "groupBy" => [],
      "having" => [],
      "order" => [],
      "union" => [],
      "unionOrder" => [],
    ],
    +aggregate: null,
    +columns: null,
    +distinct: false,
    +from: "form_up_country",
    +indexHint: null,
    +joins: null,
    +wheres: [],
    +groups: null,
    +havings: null,
    +orders: null,
    +limit: null,
    +groupLimit: null,
    +offset: null,
    +unions: null,
    +unionLimit: null,
    +unionOffset: null,
    +unionOrders: null,
    +lock: null,
    +beforeQueryCallbacks: [],
    +operators: [
      "=",
      "<",
      ">",
      "<=",
      ">=",
      "<>",
      "!=",
      "<=>",
      "like",
      "like binary",
      "not like",
      "ilike",
      "&",
      "|",
      "^",
      "<<",
      ">>",
      "&~",
      "is",
      "is not",
      "rlike",
      "not rlike",
      "regexp",
      "not regexp",
      "~",
      "~*",
      "!~",
      "!~*",
      "similar to",
      "not similar to",
      "not ilike",
      "~~*",
      "!~~*",
    ],
    +bitwiseOperators: [
      "&",
      "|",
      "^",
      "<<",
      ">>",
      "&~",
    ],
    +useWritePdo: false,
  }