SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function dictGet (alias value_first) (children 1)
     ExpressionList (children 3)
      Literal \'01754_dictionary_db.direct_dictionary_complex_key_complex_attributes\'
      Literal \'value_first\'
      Function tuple (children 1)
       ExpressionList (children 2)
        Identifier number
        Function concat (children 1)
         ExpressionList (children 2)
          Literal \'id_key_\'
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier number
    Function dictGet (alias value_second) (children 1)
     ExpressionList (children 3)
      Literal \'01754_dictionary_db.direct_dictionary_complex_key_complex_attributes\'
      Literal \'value_second\'
      Function tuple (children 1)
       ExpressionList (children 2)
        Identifier number
        Function concat (children 1)
         ExpressionList (children 2)
          Literal \'id_key_\'
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_3
