some questions

[Russ Tyndall]

On 7/18/06 10:10 AM, "Ruslan Zasukhin" <sunshine at public.kherson.ua> wrote:

> On 7/18/06 3:25 PM, "Russ Tyndall" <fitzbew at nc.rr.com> wrote:
> 
>>> * may happens that I will be able in 2.4 RELEASE also improve OPEN for
>>> VarChar...I have one old idea how to redo this. Idea is
>>>       
>>>   Keep ALL headers of all pagefiles (VarChar + Indexes)
>>>   in the single special file. So it must work much faster.
>>> 
>> 
>> Do you think (it may be too early to say) that we will keep compatibility
>> with 2.3 created dbs?
> 
> Russ,
> 
> We already are NOT compatible with 2.3,
>   because 2.4 improve Boolean fields.
> 

By "compatible" I mean: will a 2.4 RB app open (and convert) a 2.3 db to
2.4?  Of course, I realize a 2.3 RB app can never open a 2.4 db.  I see that
Vstudio offers to perform conversion.  Is that feature in the kernel, or
just in Vstudio?

For example, when I upgrade Vserver to 2.4, will it open (and convert)
registered dbs that were created in 2.3?  Answer must be yes, I guess --
Vserver cannot ask for confirmation.

> This is why I think may be it is good idea try improve VarChar also in 2.4
> 

I believe you are saying: since you have had to adjust file structure
because of booleans, why not go ahead and modify VarChar? Makes sense to me,
as long as 2.4 can open 2.3 dbs and silently convert them.

I apologize if I have misunderstood something.

-- 
Russ Tyndall
Wake Forest, NC