Re: DBT-3 v1.5 Q19 - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: DBT-3 v1.5 Q19
Date
Msg-id 20041105.001718.45516682.t-ishii@sra.co.jp
Whole thread Raw
In response to Re: DBT-3 v1.5 Q19 (Re: Proposed Query Planner TODO items)  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> Tatsuo Ishii <t-ishii@sra.co.jp> writes:
> >> Just for quick note, it seems query 19 takes forever. Have you
> >> successfully run Q19?
> 
> > Here is the more detailed info. The query was not finished within 3
> > days and was canceled on a Dual Xeon 2.8GHz with 2.5GB RAM running
> > Linux. PostgreSQL is 7.4.5 with default postgresql.conf.
> 
> 7.4's planner is not able to do anything useful with the complicated
> WHERE clause in Q19.  I believe I've improved that situation for 8.0.
> A really slick solution will probably have to await the appearance of
> bitmap indexes, though.

Thanks. I will try with 8.0.
--
Tatsuo Ishii


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