SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function snowflakeIDToDateTime (children 1)
     ExpressionList (children 2)
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'123\'
        Literal \'UInt64\'
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal UInt64_42