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

On 1 November 2017 at 18:20, Peter Geoghegan <pg@bowt.ie> wrote:

> In Postgres, you can avoid duplicate violations with MERGE by using a
> higher isolation level (these days, those are turned into a
> serialization error at higher isolation levels when no duplicate is
> visible to the xact's snapshot).

So if I understand you correctly, in your view MERGE should just fail
with an ERROR if it runs concurrently with other DML?

i.e. if a race condition between the query and an INSERT runs
concurrently with another INSERT

We have no interest in making that work?

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


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