SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function map (alias m) (children 1)
     ExpressionList (children 2)
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'1\'
        Literal UInt64_1
      Literal UInt64_1
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier m
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'1\'
        Literal UInt64_1
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier m
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'1\'
        Literal UInt64_2
