| From: | Eric B(dot)Ridge <ebr(at)tcdi(dot)com> |
|---|---|
| To: | Jeff Eckermann <jeff_eckermann(at)yahoo(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: "iscachable" functions |
| Date: | 2003-02-14 21:50:47 |
| Message-ID: | 6049EECC-4066-11D7-9576-0003937E3354@tcdi.com |
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| Thread: | |
| Lists: | pgsql-general |
On Friday, February 14, 2003, at 04:38 PM, Jeff Eckermann wrote:
> --- "Eric B.Ridge" <ebr(at)tcdi(dot)com> wrote:
<snip>
>> But where is this cache? Is it per backend
>> connection, or is it shared
>> among all backends? Also, is there a way to
>> invalidate this cache or
>> otherwise expire the values?
>>
> There isn't any cache: the choice of name is
> misleading. "iscachable" means nothing more than the
> docs quote says. The usefulness of it lies in being
> able to index the return value of the function.
thanks! I was trying to read too much into the docs.
eric
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