| From: | pgsql(at)mohawksoft(dot)com |
|---|---|
| To: | "Jonathan Gardner" <jgardner(at)jonathangardner(dot)net> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Extended customizing, SQL functions, |
| Date: | 2004-05-29 03:54:37 |
| Message-ID: | 16595.24.91.171.78.1085802877.squirrel@mail.mohawksoft.com |
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| Thread: | |
| Lists: | pgsql-hackers |
> On Friday 28 May 2004 04:08 pm, pgsql(at)mohawksoft(dot)com wrote:
>>
>> No transactions.
>>
>
> Then it won't work. Let's say we take your example. The variable "s" is
> supposed to be the sum of a column in a table.
>
> When someone modifies the data in the table, when is "s" adjusted? What if
> it is modified but the transaction is aborted? Who sees the "correct"
> value
> of "s" at any point in time?
Like I said, it is a *bad* idea. No one is denying this, it "breaks" all
the rules, but "with care" I can see a limited, but valuable function.
>
> --
> Jonathan Gardner
> jgardner(at)jonathangardner(dot)net
>
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