BitSet operations

[Joakim Schramm]

> -----Original Message-----
> From: valentina-bounces at lists.macserve.net 
> [mailto:valentina-bounces at lists.macserve.net] On Behalf Of 
> Ruslan Zasukhin
> Sent: 09 May 2006 16:38
> To: valentina at lists.macserve.net
> Subject: Re: Re[2]: BitSet operations
> 
> On 5/9/06 5:07 PM, "Joakim Schramm" <joakim at astrocalc.com> wrote:
> 
> >> It is HARD TO READ 3-4 screen of code without 
> understanding its logic.
> >> 
> > 
> > I understand, but I sent you a project with all code creating the 
> > database and a much simpler example, that give the same 
> result. I also 
> > explain exactly under which circumstance this happens, 
> which is that 
> > FindValue and FindValueAsArraySet returns nil in all cases, 
> even when 
> > the value searched do exists.
> > 
> > I sent this project to your sunshine address and CC to kirill.
> 
> Yes I see it. Kirill will check it tomorrow - today here holidays.
> 

I have done some further tests and think I have found it and I am pretty
sure I can say this is a bug. I am trying to define the exact condition for
how this to accure but is not sure yet as I couldn't complete my tests (see
below). However it seem to do with when a record only have few and probably
whole word in Capitals as one part of it's name. Some examples. 

There is a place named "Altona", then there is another named "Altona WA",
Altona is found but NOT Altona WA

There are many Altona in my database, 2 just as Altona (both found) but
about 15 Altona + 2 letter abbrivation like IL, MN etc. of which none is
found. Also a place called Altona VIC or Altona North VIC are not found.

However, there is also Hamburg-Altona and Hamburg-Altona KH, the first is
found but not the second.

I experiment little to reproduce it, there is a place called Baulkham Hills,
which is found. I add a copy and name it Baulkham, also found. I add one
more copy Baulkham PA, not found. I add Baulkham Hills PA, not found. I
change Baulkham Hills PA to Baulkham Hills PAP, not found, and to Baulkham
Hills PAPA, still not found. I now got the idea that the CAPITAL letters of
whole word caused problem. I changed Baulkham Hills PAPA to Baulkham Hills
Papa, FOUND! Also Baulkham Pa now found with same change. So FindValue don't
like when a word in field is all Capital letters. But is this all? No. I now
change Baulkham Hills Papa to Baulkham Hills PApa, again NOT found. I change
Baulkham Pa to Baulkham PaP, this also not found.

Conclusion, FindValue and FindValueAsArraySet don't like when a world
contains more then 1 capital letter, it make it blind, and the whole record
is missed so values in other fileds like integers cannot be found as well. I
can't say if this only is for special condition in structure or not but I
also tried to remove all links, which I think before was the problem but it
did not change it, so it was not the problem. You can see exact structure of
database in project I sent before, I changed nothing there.

I think I have saved Kirill some work :-)

Joakim
> --
> Best regards,
> 
> Ruslan Zasukhin
> VP Engineering and New Technology
> Paradigma Software, Inc
> 
> Valentina - Joining Worlds of Information http://www.paradigmasoft.com
> 
> [I feel the need: the need for speed]
> 
> 
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