Re: WIP patch: convert SQL-language functions to return tuplestores

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От Simon Riggs
Тема Re: WIP patch: convert SQL-language functions to return tuplestores
Дата
Msg-id 1225191009.3971.130.camel@ebony.2ndQuadrant
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Ответ на WIP patch: convert SQL-language functions to return tuplestores  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: WIP patch: convert SQL-language functions to return tuplestores  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Sun, 2008-10-26 at 21:49 -0400, Tom Lane wrote:
> So I'm concluding that we can easily afford to switch to
> tuplestore-always operation, especially if we are willing to put any
> effort into tuplestore optimization.  (I note that the current
> tuplestore code writes 24 bytes per row for this example, which is a
> shade on the high side for only 4 bytes payload.  It looks like it
> would be pretty easy to knock 10 bytes off that for a 40% savings in
> I/O volume.)

That seems like an important, possibly more important, change.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support



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