Re: INSERT ... ON CONFLICT error messages - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: INSERT ... ON CONFLICT error messages
Date
Msg-id CAM3SWZSEB0gjDau9xOPSdTM3chFhTRj8VN5hRrb=WrO2Uf+5Cg@mail.gmail.com
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In response to Re: INSERT ... ON CONFLICT error messages  (Peter Geoghegan <pg@heroku.com>)
List pgsql-hackers
On Thu, May 7, 2015 at 2:14 PM, Peter Geoghegan <pg@heroku.com> wrote:
> The only downside I see is that it might not work in preventing the
> statement from proceeding. In other words, you might have a partial
> unique index style inference clause (i.e. with a predicate) that
> infers a non-partial index, because everything else matches, and no
> predicate (on the index) satisfies the inference predicate. So it
> comes down to the actual definition of indexes, as opposed to the
> statement that inferred those indexes, which isn't quite the same
> thing.

Hmm. I think it might be inconsistent with our position on NULL values
with this feature - which is that insertion will always proceed - to
deny insertion from proceeding here. On reflection, it seems like a
bit of a POLA violation. So I'm going to remove the error.


-- 
Peter Geoghegan



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