From: | Philip Warner <pjw(at)rhyme(dot)com(dot)au> |
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To: | Gavin Sherry <swm(at)linuxworld(dot)com(dot)au>, Joe Conway <mail(at)joeconway(dot)com> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Function result cacheing - any comments? |
Date: | 2002-08-19 07:34:22 |
Message-ID: | 5.1.0.14.0.20020819173248.036667b0@mail.rhyme.com.au |
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Lists: | pgsql-hackers |
At 17:03 19/08/2002 +1000, Gavin Sherry wrote:
>What Philip seems to be asking for is a mechanism where by if a function
>is marked as being mathematically deterministic (given a particular set of
>parameters the same result is always returned -- eg: cos(), sin(),
>etc) then the result is cached and next time the function is called with
>the same argument(s) the result is retrieved from the cache instead of the
>function being run again.
Exactly. But obviously not limited to simple mathematical functions.
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