someone working to add merge?

From: Jaime Casanova <systemguards(at)gmail(dot)com>
To: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: someone working to add merge?
Date: 2005-11-11 14:03:19
Views: Raw Message | Whole Thread | Download mbox | Resend email
Lists: pgsql-hackers


there is someone working in add the MERGE statement?

i don't find much about what a good implementation of merge must have...

i think what it needs to do is something like:

- try to lock the rows for update
- if the lock cannot be immediatly acquire ask why
- if the rows are already locked, wait and try again?
- if no rows were found try de insert part
- if there was any other error, abort
- else update

so i suppose we can reuse many of the code breaking the merge in 3
pieces... for now they are just thougths, i will think more in this
and try to implement it...

comments? ideas? suggestions?

Jaime Casanova
(DBA: DataBase Aniquilator ;)


Browse pgsql-hackers by date

  From Date Subject
Next Message Martijn van Oosterhout 2005-11-11 14:04:06 Re: Getting table name/tuple from OID
Previous Message Merlin Moncure 2005-11-11 13:50:58 Re: 8.0 -> 8.1 dump duplicate key problem?