Re: [HACKERS] MERGE SQL Statement for PG11 - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] MERGE SQL Statement for PG11
Date
Msg-id 20180129164422.GE11613@momjian.us
Whole thread Raw
In response to Re: [HACKERS] MERGE SQL Statement for PG11  (Simon Riggs <simon@2ndquadrant.com>)
Responses Re: [HACKERS] MERGE SQL Statement for PG11
Re: [HACKERS] MERGE SQL Statement for PG11
Re: [HACKERS] MERGE SQL Statement for PG11
List pgsql-hackers
On Mon, Jan 29, 2018 at 04:34:48PM +0000, Simon Riggs wrote:
> I agree with all of the above.
> 
> In terms of timing of commits, I have marked the patch Ready For
> Committer. To me that signifies that it is ready for review by a
> Committer prior to commit.
> 
> In case of doubt, I would not even suggest committing this if it had
> any concurrency issues. That would be clearly unacceptable.
> 
> The only discussion would be about the word "unfinished". I'm not
> clear why this patch, which has current caveats all clearly indicated
> in the docs, differs substantially from other projects that have
> committed their work ahead of having everything everybody wants, such
> as replication, materialized views, parallel query, partitioning,
> logical decoding etc.. All of those features had caveats in the first
> release in which they were included and many of them were committed
> prior to the last CF. We are working now to remove those caveats. Why
> is this different? It shouldn't be. If unfinished means it has caveats
> that is different to unfinished meaning crappy, risky, contentious
> etc..

I think the question is how does it handle cases it doesn't support? 
Does it give wrong answers?  Does it give a helpful error message?  Can
you summarize that?

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +


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