FreeTDS Development Group

[ZIGLIO Frediano <Frediano.Ziglio AT vodafoneomnitel.it>]

> 
> Cool.  I'm sorry my 32-bit-only test platform caused the 
> problem.  I agree
> it's an awkward fix, but at least it works for now.  
> 

Wow so in your machine sizeof(TDS_INT8) == 4 ??

> > > smallmoney        odd     201203.04 -> real yields 201203.046875 
> 

calc...

201203,04 =
1-100010001111100110000101000111101
  12345678901234567890123 = 23 digit of precision

so can be from
110001000111110011000010 = 201203,03125
to
110001000111110011000011 = 201203,046875
(best this last)

log (2^24) = 7.224...
So only 7 digits should be right (sometime 8).

> money->real adds precision, granted.  But we shouldn't be 
> tacking on the
> extra 0.006875.  That's an error; we should be within 10^-8 
> or so.  May the
> problem is actually in the test program/platform, but it bears
> investigation.  
> 

> > > timestamp broken  char/varchar only. 
> > 
> > willconvert should return false for many types...
> 
> Is it returning True for any types that Sybase returns False for?
> dbwillconvert() expresses our goal, not our status.  It 
> seemed to me like
> too much trouble to keep it synchronized with our status.  
> 

timestamp is a strange type... is like a binary and cannot be converted to
ints/floats/moneys/bits...
Is not related to time but is just an unique id for db...

> > How should we convert to binary/image?
> > Should we just do a memcpy or we should swap some bytes before ??
> 
> I don't know. I don't use blobs of any kind, and I've never thought about
> converting them to anything.  

?? blobs ??
I was thinking conversion from int -> binary. Should be just a memcpy or
should we swap bytes (like bigendian->littleendian) ?

freddy77

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