You can use your max_Lo with 9 or 99, if you do the maths with a Int64 as
column type, you will have Ids for long long time.

On Mon, Sep 14, 2009 at 6:39 PM, Delucia <[email protected]> wrote:

>
> I disagree for the following reason: Take this scenario where 2 users
> are updating the database and HiLo max_Lo is 1000.
>
> user 1:
>   - get next_hi for customer entity -> 1
>   - insert custmer -> custmer_id = 1001
>   - get next_hi for employee entity -> 2
>   - insert employee -> employee_id = 2001
>
> user 2:
>   - get next_hi for customer entity -> 3
>   - insert custmer -> custmer_id = 3001
>   - get next_hi for employee entity -> 4
>   - insert employee -> employee_id = 4001
>
> while if you get the next_hi per session it will:
>
> user session 1:
>   - get next_hi for customer entity -> 1
>   - insert custmer -> custmer_id = 1001
>   - insert employee -> employee_id = 1002
>
> user session 2:
>   - get next_hi for customer entity -> 2
>   - insert custmer -> custmer_id = 2001
>   - insert employee -> employee_id = 2002
>
> you can see the second implementation is much better and more
> efficient.
>
> On Sep 14, 5:28 pm, Tuna Toksoz <[email protected]> wrote:
> > This is something not harmful, why do you care for id's anyway? if you
> want
> > you can implement your own generator. This is, I believe nice feature of
> > Hilo as you can track id's better.
> >
> > Tuna Toksöz
> > Eternal sunshine of the open source mind.
> >
> >
> http://devlicio.us/blogs/tuna_toksozhttp://tunatoksoz.comhttp://twitter.com/tehlike
> >
> >
> >
> > On Mon, Sep 14, 2009 at 4:54 PM, Delucia <[email protected]> wrote:
> > > 1000- Hide quoted text -
> >
> > - Show quoted text -
> >
>


-- 
Dario Quintana
http://darioquintana.com.ar

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