Re: INSERT ... ON CONFLICT DO UPDATE with _any_ constraint

On 19 May 2015 at 11:49, Geoff Winkless <pgsqladmin(at)geoff(dot)dj> wrote:

> On 19 May 2015 at 16:32, I wrote:
>
>> In the event that the INSERT triggers a constraint that the UPDATE fails
>> to resolve, it will still fail in exactly the same way that running the ON
>> CONFLICT on a specific constraint would fail, so it's not like you gain any
>> extra value from specifying the constraint, is it?
>>
>
> ​I don't know why I wrote this paragraph, it's just the product of me
> thinking of something else at the same time:
> UPDATE obviously doesn't resolve a conflict as such.
>
>
> Thinking about it more, I suppose if multiple constraints end up
> triggering for the same INSERT, it would require UPDATEs of multiple rows.
> Is that the issue?
>

I'm sure we'll be asked these questions many times.

Can you comment on whether the docs are sufficiently detailed to explain
this answer?

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