| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Vladimir Borodin <root(at)simply(dot)name> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ONLY in queries by RI triggers |
| Date: | 2015-04-17 14:41:24 |
| Message-ID: | 20150417144124.GC9857@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2015-04-17 17:35:16 +0300, Vladimir Borodin wrote:
> A long time ago in 04b31609b63ce77fb9273193f07cf21b2a7176af ONLY
> keyword was added to all queries in
> src/backend/utils/adt/ri_triggers.c. Since that time foreign keys do
> not work with inheritance trees and it is mentioned in the
> documentation for all versions since at least 7.3.
>
> I wonder what are the pitfalls of removing ONLY keyword from those
> queries? I have made such change, it passes all tests and foreign keys
> for partitioned tables do work, but I suppose that there are lots of
> places where it could break something.
Unique keys don't work across partitions and they fk triggers rely on
one side being unique...
Greetings,
Andres Freund
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