audit trail, take 2

[Dave Peticolas]

David Merrill writes:

> The major changes are:
> 
> - a single table; no separate audit table.
> - the client doesn't work directly with guids, but instead works with
>   an "ID" field that does not change when records are edited. The guid
>   stays globally unique. The client still has access to the guid, if it
>   wants it.
> 
> Did I miss anything? There are so many threads going I could have very
> easily done that. But that's not a complaint; I'm very glad to see so
> many folks interested in this.

I'm not clear as to the difference between and purpose of
the xaction_guid and xaction_id fields.

thanks,
dave