On Tue, Apr 19, 2011 at 4:06 PM, Tim Soderstrom
<[email protected]> wrote:
>
> On Apr 19, 2011, at 8:55 AM, Olaf van der Spek wrote:
>
>> On Tue, Apr 19, 2011 at 3:41 PM, Tim Soderstrom
>> <[email protected]> wrote:
>>> Perhaps I am misunderstanding you, but would a transaction not be what 
>>> you're asking for?
>>>
>>> BEGIN;
>>> UPDATE ... ;
>>> UPDATE ... ;
>>> ...
>>> COMMIT;
>>
>> Eh, no. That'd still be 10000 update statements.
>
> Yes, but the writes will occur in a single transaction when you COMMIT so it 
> should be faster than doing isolated UPDATEs. Use a prepared statement if you 
> want to get even more speed out of it (though I suspect any speed 
> improvements may be sort of marginal, and that's assumption not bounded by 
> any particular benchmarks I have done that show differences either way).

I'd prefer a solution that's as simple as the original.

> It's faster because you don't use the SQL optimizer, though I don't think you 
> can do transactional updates with it. Still, if it's anything close to the 
> speed of HandlerSocket, I would take a look at this since you're doing a 
> bunch of key-value updates anyway (hence you don't need a SQL layer for those 
> really).

HandlerSocket isn't available by default (AFAIK).


-- 
Olaf

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