FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: Frediano Ziglio [mailto:freddyz77 AT tin.it]
> Sent: November 7, 2002 4:35 PM
> > 
> > But 5.0 sends ee, ae, d1, 1, 0?
> > Received packet @ 2002-11-07 15:43:34.383225
> > 0000  ee 0d 00 01 00 00 30 0a  00 00 00 6c 21 4d 12 00
> 
> Row, numeric of 33 (yes, 33!) bytes. So we must change 
> numeric limit...
> (in tds.h is defined as 17 bytes...)

I'm trying to interpret that packet:

ee              TDS_ROWFMT
0d 00           13 byte packet
01 00           1 column
00              Name length = 0
30              status nullable, updatable (!)
0a 00 00 00     user type numeric
6c              nullable numeric
21              33 bytes wide
4d              precision 64+13 = 77
12              scale 18
00              no locale

Is that right?  

Wow.  That's one big number, 10 ^ (77 - 18), like a gazillion or something. 

--jkl
 


> > 0010  ae 01 00 00 d1 21 01 00  00 00 00 00 00 00 00 00
> 
> Yes, is a 33 bytes
> 
> from token.c
> 
>               /* server is going to crash freetds ??*/
>               if (colsize > sizeof(num->array))
>                       return TDS_FAIL;
>               tds_get_n(tds,num->array,colsize);
> 
> So, we have two problem:
> - numeric should support 256 bit number, not only 128
> - we do not check result of tds_get_data...
> 
> freddy77
> 


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