Hi,
On Sat, 12 Mar 2005, Mike Rylander wrote:
Back to the original question on this thread, and using PG 8.0.1. Perhaps someone would like to poke holes in this (other than the need to set up fkeys and indexes on the inherited tables...):
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begin; create schema partition_test; set search_path to partition_test,public;
create table test_base ( id serial, value text, partitioner timestamp with time zone default now()); create table test_2005_03 () inherits (test_base); create table test_2005_04 () inherits (test_base);
create rule base_partitioner_test_2005_03 as on insert to test_base where partitioner AT TIME ZONE 'UTC' between '2005-03-01'::timestamp and '2005-04-01'::timestamp do instead insert into test_2005_03 values (NEW.*);
create rule base_partitioner_test_2005_04 as on insert to test_base where partitioner AT TIME ZONE 'UTC' between '2005-04-01'::timestamp and '2005-05-01'::timestamp do instead insert into test_2005_04 values (NEW.*);
insert into test_base (value) values ('first string'); insert into test_base (value, partitioner) values ('a string', '2004-01-30 10:17:08'); insert into test_base (value, partitioner) values ('a string', '2005-04-01 14:17:08');
explain analyze select * from test_base; select tableoid::regclass,* from test_base;
rollback;
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any ideas how we would get
select * from test_base where partitioner between a and b
to just look in the correct partition and not doing a full sweep over the other partitions or the base.
Greetings Christian
-- Christian Kratzer [EMAIL PROTECTED] CK Software GmbH http://www.cksoft.de/ Phone: +49 7452 889 135 Fax: +49 7452 889 136
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