Re: DataRow Null values Frontend/Backend Protocol TCP/IP - Mailing list pgsql-general

Here I'm again ...


I'm parsing the DataRow(B), and I'm having problems with NULL values.

In the docs I can read they have a -1 value, an no bytes follow them
for the value.

But I'm getting a 1020 value instead of -1

Int32  The length of the column value, in bytes (this count does not
include itself). Can be zero.
As a special case, -1 indicates a NULL column value. No value bytes
follow in the NULL case.

byte 1: 255 &HFF
byte 2: 255 &HFF
byte 3: 255 &HFF
byte 4: 255 &HFF
-----------------
1020 decimal or

&HFFFFFFFF 4294967295

but never -1

If I change my code to be aware of the 1020 instead of -1, I can
extract the next field/values without problems.


thanks,


regards,


raimon