dhis2-devs team mailing list archive

[Saptarshi Purkayastha <sunbiz@xxxxxxxxx>]

UUID is optimized in a lot of database systems, if those are put in IDENTITY
columns
Any other generated unique ids are going to be treated as plain varchar

REST services should probably make use of UUID because its easy and
most-likely safe to be unique across implementations

---
Regards,
Saptarshi PURKAYASTHA

My Tech Blog:  http://sunnytalkstech.blogspot.com
You Live by CHOICE, Not by CHANCE


On 24 October 2011 02:03, Bob Jolliffe <bobjolliffe@xxxxxxxxx> wrote:

> Lars and Jo and I have been discussing a bit about ids off list.
>
> One conclusion we have reached is that we should auto-generate a
> unique identifier which is not quite as cumbersome as a uuid.
>
> You might have noticed the CodeGenerator class which has recently
> appeared in the api.  This generates an 11 character code matching
> regex [0-9a-zA-Z]{11}.  That is 62^11 unique permutations (or 5.2e19)
> which is a reasonably big number.
>
> It seems unnecessary to maintain both this and the uuid.  Which begs
> the question, is anybody actually using the uuid currently?
>
> Cheers
> Bob
>
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