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Re: Declarative partitioning grammar

From: NikhilS <nikkhils(at)gmail(dot)com>
To: "Jeff Cohen" <jcohen(at)greenplum(dot)com>
Cc: "Warren Turkal" <turkal(at)google(dot)com>, "Ron Mayer" <rm_pg(at)cheapcomplexdevices(dot)com>, "Gavin Sherry" <swm(at)alcove(dot)com(dot)au>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Declarative partitioning grammar
Date: 2008-01-12 10:31:19
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers

> We did look at allowing general functions for partitioning and this
> was one concern.  The other is that we want to enforce that a row
> only gets inserted into a single partition, so we wanted a
> declarative syntax where it was relatively easy to check that range
> and list specifications don't overlap.

Detection of mutually exclusive ranges might not turn out to be so easy
afterall. I think there is some code in the constraint_exclusion area which
might help out in this.


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