[Freeswitch-users] Storing CDR UUIDs in MySQL

[Cal Leeming [Simplicity Media Ltd]]

Thanks for clarifying this!

Cal

On Sun, Feb 17, 2013 at 10:39 PM, Seven Du <dujinfang at gmail.com> wrote:

> you can use any arbitrary string as uuid, say
>
> originate {origination_uuid=my-uuid-that-is-not-128-bit}user/1000 ….
>
> On Monday, February 18, 2013 at 6:13 AM, Cal Leeming [Simplicity Media
> Ltd] wrote:
>
> Thanks for the feedback Steve,
>
> In ref to auto inc, actually, I have! :) In the code on the blog, it shows
> that the tables uses a BIGINT auto increment for each row, and the
> performance was still good. However, using this approach introduces an
> unnecessary JOIN and uses more index and table space - unless I've missed
> something?
>
> Could you elaborate more on the UUIDs that may not be 128-bit? My
> google-fu failed me :/
>
> Cal
>
> On Sun, Feb 17, 2013 at 9:11 PM, Steven Ayre <steveayre at gmail.com> wrote:
>
> Another possibility you haven't looked at is having a table of UUIDs with
> a BIGINT auto_increment PK and using that as keys in other takes with a
> foreign key relationship (whether defined or implied). That would give you
> a smaller integer (hence faster select/insert/join/etc) that's still
> guaranteed to be unique. Though the auto_increment INSERT could then become
> a bottleneck (hint run a recent 5.5/5.6 MySQL version at the very least
> since that bottleneck while still present was very much reduced).
>
> -Steve
>
>
>
> On 17 February 2013 20:55, Cal Leeming [Simplicity Media Ltd] <
> cal.leeming at simplicitymedialtd.co.uk> wrote:
>
> Hi all,
>
> Just spent a little while comparing the performance of heavy INSERT/SELECT
> performance against UUID fields in a MySQL database.
>
> Full performance breakdown and write up can be found here;
> http://blog.simplicitymedialtd.co.uk/?p=437
>
> So far, the best option seems to be storing the UUID as a BINARY(16) -
> anyone have any thoughts on this?
>
> Thanks
>
> Cal
>
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