SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Function toUInt8 (alias x) (children 1)
     ExpressionList (children 1)
      Literal UInt64_0
    Function toFloat64 (alias y) (children 1)
     ExpressionList (children 1)
      Literal UInt64_1
    Function if (alias z) (children 1)
     ExpressionList (children 3)
      Function greater (children 1)
       ExpressionList (children 2)
        Identifier x
        Identifier y
      Identifier x
      Identifier y
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier y
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier z