|From:||David Fetter <david(at)fetter(dot)org>|
|To:||Boxuan Zhai <bxzhai2010(at)gmail(dot)com>|
|Cc:||Andres Freund <andres(at)anarazel(dot)de>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org, Simon Riggs <simon(at)2ndquadrant(dot)com>|
|Subject:||Re: gSoC add MERGE command new patch -- merge_v104|
|Views:||Raw Message | Whole Thread | Download mbox | Resend email|
On Wed, Aug 25, 2010 at 08:11:18AM +0800, Boxuan Zhai wrote:
> On Wed, Aug 25, 2010 at 4:56 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > On Tue, Aug 24, 2010 at 11:02:41PM +0300, Heikki Linnakangas wrote:
> > > On 24/08/10 16:35, Boxuan Zhai wrote:
> > > >Hi,
> > > >
> > > >I finished the MERGE on inheritance tables. Now comes the
> > > >merge_v201
> > >
> > > Oh, great! That means that all the known issues are fixed now,
> > > and all that's left is fixing any issues raised in review.
> > >
> > > I've added this to the September commitfest, but I hope I'll
> > > find some time to look at this before that. I welcome anyone
> > > else to review this too!
> > I have to ask one question: On a short review of the discussion
> > and the patch I didn't find anything about the concurrency issues
> > involved (at least nodeModifyTable.c didnt show any). Whats the
> > plan to go forward at that subject? I think the patch needs to
> > lock tables exclusively (the pg level, not access exclusive) as
> > long as there is no additional handling...
> > Thanks for the work Boxuan!
> The concurrency issues are not involved. I don't know much about
> this part. I think we need more discussion on it.
I seem to recall Simon had volunteered some of 2ndQuadrant's time on
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