Default maximal length for VarChar Re: VChar vs VText
Ed Kleban
Ed at Kleban.com
Wed Nov 30 09:09:47 CST 2005
On 11/28/05 5:59 AM, "Ruslan Zasukhin" <sunshine at public.kherson.ua> wrote:
> On 11/28/05 3:57 AM, "Ed Kleban" <Ed at Kleban.com> wrote:
>
>>> Actually in v2 for UTF8 the best size of VarChar will be 2044.
>>>
>>
>> Why? Does this have to do with the natural page size of MacOS X or
>> something?
>
> Yes. Best size of page is 4K
>
> We assume that page should keep at least 2 records.
>
> So max size *in bytes* for one record is (4K - header) / 2 = 2044
>
Ok, great. I understand. I'll change my code accordingly.
You can change the Kernel doc. ;-)
Thanks!
--Ed
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