| From: | Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Martijn van Oosterhout <kleptog(at)svana(dot)org>, Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Jaime Casanova <jaime(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Itagaki Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org, Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi>, Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com> |
| Subject: | Re: Syntax for partitioning |
| Date: | 2011-11-14 09:28:59 |
| Message-ID: | 87vcqngihw.fsf@hi-media-techno.com |
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Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> to match the desired granularity of data removal. I don't really see
> any way that the database can be expected to know what that is, unless
> it's told in advance. So AFAICS you really have to have a declarative
> way of telling it how to do the partitioning --- it's not going to be
> able to infer that automatically.
Yes, I'm taking that back. Declarative is not the same thing as explicit
partitioning though, that "index" like physical map is declarative too,
e.g.
Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
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