| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>, Anssi Kääriäinen <anssi(dot)kaariainen(at)thl(dot)fi>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Kevin Grittner <kgrittn(at)ymail(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: INSERT ... ON CONFLICT {UPDATE | IGNORE} |
| Date: | 2014-12-17 22:19:59 |
| Message-ID: | 5492018F.10903@agliodbs.com |
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| Lists: | pgsql-hackers |
On 12/17/2014 01:12 PM, Heikki Linnakangas wrote:
> 3. Why is the specification required with ON CONFLICT UPDATE, but not
> with ON CONFLICT IGNORE?
Well, UPDATE has to know which row to lock, no? IGNORE does not.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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