| From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Peter Geoghegan <pg(at)bowt(dot)ie>, "Shinoda, Noriyoshi" <noriyoshi(dot)shinoda(at)hpe(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Thom Brown <thom(at)linux(dot)com> |
| Subject: | Re: Partitioning vs ON CONFLICT |
| Date: | 2017-08-02 00:31:11 |
| Message-ID: | bec4412e-de46-4a4c-bdab-337bcce0cfe0@lab.ntt.co.jp |
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| Lists: | pgsql-hackers |
On 2017/08/02 4:02, Robert Haas wrote:
> On Tue, Aug 1, 2017 at 12:26 AM, Amit Langote
> <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:
>> So is the latest patch posted upthread to process ON CONFLICT DO NOTHING
>> using locally-defined unique indexes on leaf partitions something to consider?
>
> Yeah, for v11.
OK.
>> Maybe, not until we have cascading index definition working [1]?
>
> Not sure what that has to do with it.
Hmm, scratch that. I was thinking that if all partitions had uniformly
defined (unique) indexes, the behavior on specifying on conflict do
nothing would be consistent across all partitions, but I guess that's not
a really big win or anything.
Thanks,
Amit
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