Re: [HACKERS] MERGE SQL Statement for PG11

On 24 January 2018 at 04:12, Simon Riggs <simon@2ndquadrant.com> wrote:
> On 24 January 2018 at 01:35, Peter Geoghegan <pg@bowt.ie> wrote:
>>
> Please rebase, and post a new version.
>
> Will do, though I'm sure that's only minor since we rebased only a few days ago.

New v12 with various minor corrections and rebased.

Main new aspect here is greatly expanded isolation tests. Please read
and suggest new tests.

We've used those to uncover a few unhandled cases in the concurrency
of very comple MERGE statements, so we will repost again on Mon/Tues
with a new version covering all the new tests and any comments made
here. Nothing to worry about, just some changed logic.

I will post again later today with written details of the concurrency
rules we're working to now. I've left most of the isolation test
expected output as "TO BE DECIDED", so that we can agree our way
forwards.

-- 
Simon Riggs                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services