| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Csaba Nagy <nagy(at)ecircle-ag(dot)com>, Richard Huxton <dev(at)archonet(dot)com>, postgres hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Referential Integrity and SHARE locks |
| Date: | 2007-02-05 22:11:42 |
| Message-ID: | 200702052211.l15MBgS27896@momjian.us |
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| Thread: | |
| Lists: | pgsql-hackers |
Simon Riggs wrote:
> > It occurs to me that if we had visibility in unique indexes, this would
> > allow the index rows to be separately lockable to the main row. That's
> > exactly what we need here.
>
> I've implemented a work-around using this principle, utilising RULEs and
> a duplicated PK column-only table. This still allows FK checks to work
> correctly, yet doesn't require the backend hack Csaba mentioned.
>
> My feeling is that more work in this area is required, even if we can't
> yet agree a TODO item.
OK, please propose some wording so at least we can get agreement on
that.
--
Bruce Momjian bruce(at)momjian(dot)us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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