random_page_cost etc. per tablespace? - Mailing list pgsql-performance

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Hi,

how hard would it be to give users the ability to
configure different random_page and seq_page costs per tablespace?

Obviously this does not match with random_page_cost being a GUC variable
but nonetheless I think it'd make a nice feature.

I just came across this problem because I own a solid state
disk but not all data is stored there.

Regards,
   Jens-W. Schicke
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