FreeTDS Development Group

["James K. Lowden" <jklowden AT schemamania.org>]

On 07 Dec 2002 18:26:40 +0100, Frediano Ziglio <freddyz77 AT tin.it> wrote:
> 
> > Mine 0xd0 -> 0000 0000 1101 0000 -> third: 1 width insensitive 1
> > katatype insensitive 0 accent sensitive 1 case insensitive
> > Yours 0x100 -> 0000 0001 0000 0000 -> second: 0 0 0 1 binary third
> > 0000 all insensitive.
> > Other bits ??
> > 
> 
> Last nibble of bytes 2-3 is language modifier. Last byte is id or 0
> Other bits confirmed, see also attachment (extracted from query I send
> in previous mail)
> 
> So now we know all bits of collation info. Problem is to use all info
> and how...

Frediano, 

Nice work!  Does this represent what we now know?

typedef struct 
{
        TDS_SMALLINT    locale_id;  /* master..syslanguages.lcid */
        TDS_UCHAR       unknown;
        TDS_UCHAR       sort_flags; /* high nybble only */
        TDS_UCHAR       charset_id; /* or zero */
} TDS8_COLLATION;

/* SF stands for "sort flag" */

#define TDS_SF_WIDTH_INSENSITIVE     (TDS_UCHAR) 0x80
#define TDS_SF_KATATYPE_INSENSITIVE  (TDS_UCHAR) 0x40
#define TDS_SF_ACCENT_SENSITIVE      (TDS_UCHAR) 0x20
#define TDS_SF_CASE_INSENSITIVE      (TDS_UCHAR) 0x10

--jkl