SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function toDateTime64 (alias dt64_4) (children 1)
     ExpressionList (children 3)
      Literal \'2023-11-11 11:11:11.1231\'
      Literal UInt64_4
      Literal \'UTC\'
   ExpressionList (children 2)
    Identifier dt64_4
    Function snowflakeToDateTime64 (children 1)
     ExpressionList (children 2)
      Function dateTime64ToSnowflake (children 1)
       ExpressionList (children 1)
        Identifier dt64_4
      Literal \'UTC\'