Hello!
On Thursday 30 July 2009 18:17:45 Jim Showalter wrote:
> MD5 hashes can still collide. How does this implementation deal with
> hash collisions?
Now it is possible to use any hash function:
-- first column is unique key
select versioning('arg1','sessions');
-- use md5 hash of all fields
select versioning('md5','sessions');
Note: function arg1() is coded in versioning extension.
select arg1('a');
a
select arg1('a','b','c');
a
When you will define sha256 function (as example) you can do
select versioning('sha256','sessions');
Thanks for you comment.
Best regards, Alexey Pechnikov.
http://pechnikov.tel/
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