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Re: PITR, nested transactions, tablespaces, 2-phase commit:

From: Bob(dot)Henkel(at)hartfordlife(dot)com
To: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Cc: pgsql-hackers(at)postgresql(dot)org, pgsql-hackers-owner(at)postgresql(dot)org
Subject: Re: PITR, nested transactions, tablespaces, 2-phase commit:
Date: 2004-04-23 18:30:55
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers

Just so you know I'm very thankful for your hard work and I'm sure many of
us are.  I have been waiting for this kind of functionally in Postgresql!

|         |           Heikki Linnakangas     |
|         |           <hlinnaka(at)iki(dot)fi>      |
|         |           Sent by:               |
|         |           pgsql-hackers-owner(at)pos|
|         |             |
|         |                                  |
|         |                                  |
|         |           04/23/2004 12:56 PM    |
|         |                                  |
  |                                                                                                        |
  |       To:       pgsql-hackers(at)postgresql(dot)org                                                           |
  |       cc:                                                                                              |
  |       Subject:  Re: [HACKERS] PITR, nested transactions, tablespaces, 2-phase commit:     Status       |

On Sat, 17 Apr 2004, Bruce Momjian wrote:

> Would folks report on the current status of these projects:
>            o nested transactions (Alvaro Herrera)
>            o tablespaces (Gavin Sherry)
>            o PITR (Simon Riggs)
>            o 2-phase commit (Heikki Linnakangas)

I've been very busy with at work, and haven't had much time to work on the
2-phase commit patch.

I'm keeping a close eye on Alvaro's nested transactions stuff, because it
touches the same areas as 2-phase commits.

One day, while reading postgresql code, I realized that my two-phase
code doesn't do the right thing with snapshots. GetSnapshotData scans
through all running backends, and collects the xids of all running
transactions. I suppose all pre-committed transactions should go to the
snapshot too.

So there's still some work to be done, but I'm still hoping to finish it
in time for 7.5.

- Heikki

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