tweaking costs to favor nestloop

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От Vincent van Leeuwen
Тема tweaking costs to favor nestloop
Дата
Msg-id 20030611193313.GE1535@md2.mediadesign.nl
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Ответы Re: tweaking costs to favor nestloop  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-performance
Hi,

I'm running PG 7.3.2 on a dual P3 1 GHz, 4GB RAM, 5-disk RAID 5 (hardware) on
Debian Linux, kernel 2.4.21-rc3.

I'm unable to tweak the various _cost settings in such a way that attached
query will use the right plan. Attachment contains relevant config file
settings, table defenitions and explain analyze output with some enable_*
settings turned off.

Could anyone tell me what I'm doing wrong in the query itself or tell me what
I should do with which config file setting to let the planner choose the
fastest plan by itself?


Regards,

Vincent van Leeuwen
Media Design - http://www.mediadesign.nl/

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