SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Function fuzzBits (children 1)
       ExpressionList (children 2)
        Literal \'stringstring\'
        Literal Float64_0.5
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1 (alias x)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal NULL
   ExpressionList (children 1)
    Identifier x
