Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0

On 20 May 2015 at 17:54, Andres Freund <andres(at)anarazel(dot)de> wrote:
> On 2015-05-20 17:44:05 +0100, Thom Brown wrote:
>> On 8 May 2015 at 16:03, Andres Freund <andres(at)anarazel(dot)de> wrote:
>> > So I've committed the patch yesterday evening. I'm pretty sure there'll
>> > be some more minor things to change. But overall I feel good about the
>> > current state.
>> >
>> > It'd be quite helpful if others could read the docs, specifically for
>> > insert, and comment whether they're understandable. I've spent a fair
>> > amount of time trying to make them somewhat simpler, but I do think I
>> > only succeeded partially. And there's also my own brand of english to
>> > consider ;)
>>
>> The docs say "Note that exclusion constraints are not supported with
>> ON CONFLICT DO UPDATE."
>>
>> But I get the following error message text:
>>
>> "ERROR: there is no unique or exclusion constraint matching the ON
>> CONFLICT specification"
>>
>> This implies that an exclusion constraint is valid in the statement,
>> which contradicts the docs. Which one is correct?
>
> ON CONFLICT can be used for ... DO NOTHING as well.

Yes, but still confusing when not using DO NOTHING.

--
Thom