Re: Optimizing query: select ... where id = 4 and md5(...)

[Alban Hertroys <alban@xxxxxxxxxxxxxxxxx>]

Alexander Farber wrote:
> I wonder, what is faster: fetching 2 columns - the
> username and the md5-result and then comparing the
> md5 string against the argument in my app, like here:
>
> punbb=> select username, md5('deadbeef' || password) from users where id 
> = 4;
> username |               md5
> ----------+----------------------------------
> Vasja    | dcde745cc304742e26d62e683a9ecb0a
> (1 row)

Why don't you store the hashed value instead?

--
Alban Hertroys
alban@xxxxxxxxxxxxxxxxx

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