Thanks for clarifying this!<div><br></div><div>Cal<br><br><div class="gmail_quote">On Sun, Feb 17, 2013 at 10:39 PM, Seven Du <span dir="ltr">&lt;<a href="mailto:dujinfang@gmail.com" target="_blank">dujinfang@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                <div>you can use any arbitrary string as uuid, say</div><div><br></div><div>originate {origination_uuid=my-uuid-that-is-not-128-bit}user/1000 ….</div><div class="HOEnZb"><div class="h5"><div><div><br></div>
</div>
                 
                <p style="color:#a0a0a8">On Monday, February 18, 2013 at 6:13 AM, Cal Leeming [Simplicity Media Ltd] wrote:</p>
                <blockquote type="cite" style="border-left-style:solid;border-width:1px;margin-left:0px;padding-left:10px">
                    <span><div><div><div>Thanks for the feedback Steve, </div><div><br></div>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&#39;ve missed something?<div>

<div><br></div><div>Could you elaborate more on the UUIDs that may not be 128-bit? My google-fu failed me :/</div><div><br></div><div>Cal<br><div><div><br><div>On Sun, Feb 17, 2013 at 9:11 PM, Steven Ayre <span dir="ltr">&lt;<a href="mailto:steveayre@gmail.com" target="_blank">steveayre@gmail.com</a>&gt;</span> wrote:<br>
<blockquote type="cite"><div>Another possibility you haven&#39;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&#39;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).<div>




<br><div>-Steve<div><br></div><div><br><br><div><div>On 17 February 2013 20:55, Cal Leeming [Simplicity Media Ltd] <span dir="ltr">&lt;<a href="mailto:cal.leeming@simplicitymedialtd.co.uk" target="_blank">cal.leeming@simplicitymedialtd.co.uk</a>&gt;</span> wrote:<br>




</div><blockquote type="cite"><div><div><div>Hi all,<div><div><br></div><div>Just spent a little while comparing the performance of heavy INSERT/SELECT performance against UUID fields in a MySQL database.</div>



</div><div><br></div><div>Full performance breakdown and write up can be found here;</div>
<div><a href="http://blog.simplicitymedialtd.co.uk/?p=437" target="_blank">http://blog.simplicitymedialtd.co.uk/?p=437</a></div><div><br></div><div>So far, the best option seems to be storing the UUID as a BINARY(16) - anyone have any thoughts on this?</div>





<div><br></div><div>Thanks</div><span><font color="#888888"><div><br>Cal</div>
</font></span><br></div></div><div>_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br></div></div></blockquote></div><br></div></div></div>
<br>_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br></div></blockquote></div><br></div></div></div></div>
</div><div><div>_________________________________________________________________________</div><div>Professional FreeSWITCH Consulting Services:</div><div><a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a></div>
<div><a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a></div><div><br></div><div>FreeSWITCH-powered IP PBX: The CudaTel Communication Server</div><div><a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a></div>
<div><br></div><div>Official FreeSWITCH Sites</div><div><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a></div><div><a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a></div>
<div><a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a></div><div><br></div><div>FreeSWITCH-users mailing list</div><div><a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a></div>
<div><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a></div><div>UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a></div>
<div><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a></div></div></div></span>
                 
                 
                 
                 
                </blockquote>
                 
                <div>
                    <br>
                </div>
            </div></div><br>_________________________________________________________________________<br>
Professional FreeSWITCH Consulting Services:<br>
<a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br>
<a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
<br>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
<a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br>
<br>
Official FreeSWITCH Sites<br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br>
<a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
<br>
FreeSWITCH-users mailing list<br>
<a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br>
<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
<a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
<br></blockquote></div><br></div>