Horton

Re: support for MERGE

Daniel Gustafsson <daniel@yesql.se>

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From: Daniel Gustafsson <daniel@yesql.se>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Magnus Hagander <magnus@hagander.net>, Bruce Momjian <bruce@momjian.us>, David Steele <david@pgmasters.net>, Robert Haas <robertmhaas@gmail.com>, Pg Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2021-09-01T12:58:33Z
Lists: pgsql-hackers 
> On 1 Sep 2021, at 14:25, Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> 
> On 2021-Sep-01, Daniel Gustafsson wrote:
> 
>>> On 21 Mar 2021, at 14:57, Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
>>> On 2021-Mar-21, Magnus Hagander wrote:
>> 
>>>> But what is it we *want* it to do? That is, what should be the target?
>>>> Is it 2021-07 with status WoA?
>>> 
>>> Yeah, that sounds like it, thanks.
>> 
>> This patch fails to apply, will there be a new version for this CF?
> 
> No, sorry, there won't.  I think it's better to close it as RfW at this
> point, I'll create a new one when I have it.

No worries, I did that now.

--
Daniel Gustafsson		https://vmware.com/

Commits

  1. Doc fixes for MERGE statement

  2. MERGE docs adjustments

  3. Link to MVCC docs in MERGE docs

  4. Fix EXPLAIN MERGE output when no tuples are processed

  5. Make EXPLAIN MERGE output format more compact

  6. Add support for MERGE SQL command

  7. Split ExecUpdate and ExecDelete into reusable pieces

  8. Add API of sorts for transition table handling in trigger.c

  9. Represent Lists as expansible arrays, not chains of cons-cells.