RE: [HACKERS] Transaction logging

Your getting me excited about 6.5. Is there a projected release date for
6.5? Is there any information on transaction logging? Is there anything I
can do to help? I am curious about these items because they will make my
life much easier in the upcoming months as I migrate my application to
Postgres. Working around these could be very difficulty or near impossible.

-----Original Message-----
From: Bruce Momjian [SMTP:maillist(at)candle(dot)pha(dot)pa(dot)us]
Sent: Tuesday, February 23, 1999 8:02 PM
To: Michael Davis
Cc: pgsql-general(at)postgreSQL(dot)org; pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [GENERAL] Transaction logging

> What would it take to have transaction logging added to Postgres.
I am a
> c/c++ programmer and will consider contributing to the Postgres
development
> effort. I really like everything I see and read about Postgres.
As a
> result, I am strongly considering Postgres as the database engine
for my
> Membership database application. My customer is willing to invest
in a
> commercial database, but most of the commercial databases I have
briefly
> looked at fall a little short in one way or another. I have
several
> concerns/needs that I am willing to implement and/or support:
>
> - Outer join support in views

In the works. Perhaps for 6.5, probably not.

>
> - Transaction logging
>
> - Some form of mirroring, shadowing, or replication
>
> - The current locking mechanism is of some concern. I need
to make
> sure that one user can read a record and then a second can read
and update
> that same record.

MVCC locking in 6.5. Will do what you need.
>
> - If the first user attempts to update that record, what
happens?

Hard to explain. Will wait or update a copy while read's use an
older
copy fo the row.

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