Horton

Re: support for MERGE

Justin Pryzby <pryzby@telsasoft.com>

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From: Justin Pryzby <pryzby@telsasoft.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2021-11-13T18:33:49Z
Lists: pgsql-hackers

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On Thu, Dec 31, 2020 at 10:47:36AM -0300, Alvaro Herrera wrote:
> Here's a rebase of Simon/Pavan's MERGE patch to current sources.  I
> cleaned up some minor things in it, but aside from rebasing, it's pretty
> much their work (even the commit message is Simon's).
> 
> Adding to commitfest.

I reviewed the documentation to learn about the feature,
and fixed some typos.

+notpatch.

-- 
Justin

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.