| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Peter Geoghegan <pg(at)heroku(dot)com>, hlinnaka <hlinnaka(at)iki(dot)fi>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0 |
| Date: | 2015-05-08 17:25:22 |
| Message-ID: | 10633.1431105922@sss.pgh.pa.us |
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Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2015-05-08 12:32:10 -0400, Tom Lane wrote:
>> Looks like there's a CLOBBER_CACHE_ALWAYS issue ...
>> http://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=jaguarundi&dt=2015-05-08%2011%3A52%3A00
> Currently index inferrence ignores indexes that aren't yet valid
> according to checkxmin. I'm tempted to think that is a mistake. I think
> we should throw an error instead; possbily at execution rather than plan
> time.
If that's what is happening, then throwing an error is not going to fix
the problem of the regression test results being unstable; it'll just be
a different error that might or might not get thrown depending on timing.
regards, tom lane
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