Re: No hash join across partitioned tables? - Mailing list pgsql-performance

From Alvaro Herrera
Subject Re: No hash join across partitioned tables?
Date
Msg-id 1287242940-sup-5258@alvh.no-ip.org
Whole thread Raw
In response to Re: No hash join across partitioned tables?  (Samuel Gendler <sgendler@ideasculptor.com>)
Responses Re: No hash join across partitioned tables?  (Samuel Gendler <sgendler@ideasculptor.com>)
List pgsql-performance
Excerpts from Samuel Gendler's message of sáb oct 16 02:35:46 -0300 2010:

> An issue with automatically analyzing the entire hierarchy is 'abstract'
> table definitions.  I've got a set of tables for storing the same data at
> different granularities of aggregation.  Within each granularity, I've got
> partitions, but because the set of columns is identical for each
> granularity, I've got an abstract table definition that is inherited by
> everything.  I don't need or want statistics kept on that table because I
> never query across the abstract table, only the parent table of each
> aggregation granularity

Hmm, I think you'd be better served by using LIKE instead of regular
inheritance.

--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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