Re: How to hash fields and detect changes in a record

[Mike Dewhirst]

On 14/06/2022 11:20 pm, Ryan Nowakowski wrote:

Summing the ordinal of the characters won't catch transposition:

>>> chars = 'ab'
>>> sum([ord(c) for c in chars])
195
>>> chars = 'ba'
>>> sum([ord(c) for c in chars])
195

Better to use a real hash algorithm if you're trying to detect changes.  My note above about hashing not being required is because you don't need to detect changes because you explicitly already know when changes are being made.

Thanks Ryan.



Cheers

Mike




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