SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function materialize (alias x) (children 1)
     ExpressionList (children 1)
      Literal Float64_0.4242
    Function materialize (alias y) (children 1)
     ExpressionList (children 1)
      Function toDecimal32 (children 1)
       ExpressionList (children 2)
        Literal \'0.4242\'
        Literal UInt64_4
    Function round (children 1)
     ExpressionList (children 2)
      Function hypot (children 1)
       ExpressionList (children 2)
        Identifier x
        Identifier y
      Literal UInt64_6
