<div dir="ltr"><div>Resubmitted on the correct branch.  In nominal tests here (not a full rebuild but just a loading of that sql file), it seems to retain node numbers very nicely.<br><br></div>Best,<br>Steve<br></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Tue, Dec 3, 2013 at 12:15 AM, Daniel Kastl <span dir="ltr"><<a href="mailto:daniel@georepublic.de" target="_blank">daniel@georepublic.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi Stephen,<div><br></div><div>Thanks for looking into this!</div><div>I just wanted to mention that it would be better, if a pull request would be in "develop" branch (I already didn't look careful recently and just clicked "merge pull request" accidentally and it was merged into master branch).</div>


<div><br></div><div>So in general making changes in "develop" branch is better, because "develop" might be also ahead of "master" anyway.</div><div><br></div><div>Daniel</div><div><br></div>

<div>
<br></div><div><br></div><div><br></div></div><div class="gmail_extra"><div><div class="h5"><br><br><div class="gmail_quote">On Tue, Dec 3, 2013 at 11:54 AM, Stephen Mather <span dir="ltr"><<a href="mailto:stephen@smathermather.com" target="_blank">stephen@smathermather.com</a>></span> wrote:<br>


<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I don't know if I did this correctly, but:<br><br><a href="https://github.com/pgRouting/pgrouting/pull/221" target="_blank">https://github.com/pgRouting/pgrouting/pull/221</a><br>


<br></div><div><div><div class="gmail_extra"><br><br>
<div class="gmail_quote">On Sat, Nov 30, 2013 at 4:43 PM, Stephen Mather <span dir="ltr"><<a href="mailto:stephen@smathermather.com" target="_blank">stephen@smathermather.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div dir="ltr"><div>Done.  Issue <a href="https://github.com/pgRouting/pgrouting/issues/220" target="_blank">#220</a>.<br><br></div>Thanks,<br>Best,<br>Steve<br></div><div><div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Sat, Nov 30, 2013 at 2:52 PM, Stephen Mather <span dir="ltr"><<a href="mailto:stephen@smathermather.com" target="_blank">stephen@smathermather.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Cool, I'll write a ticket.  It would be mostly useful in the case of e.g. tutorial development.<br>




<br></div>Best,<br>Steve<br></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Nov 30, 2013 at 2:46 PM, Stephen Woodbridge <span dir="ltr"><<a href="mailto:woodbri@swoodbridge.com" target="_blank">woodbri@swoodbridge.com</a>></span> wrote:<br>





<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>On 11/30/2013 2:18 PM, Stephen Mather wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Is pgr_createTopology deterministic in how it numbers nodes in a built<br>
topology?<br>
</blockquote>
<br></div>
Stephen,<br>
<br>
What do you mean by this?<br>
<br>
If you build a topology on the same edge table twice, do we guarantee that the nodes numbers will be identical?<br>
<br>
I think the answer is NO, on line:303 of src/common/sql/pgrouting_<u></u>topology.sql there is no "order by" clause. This would need to be added to make it deterministic because relational set theory does not guarantee order of records in a query without explicitly including and "order by" clause.<br>






<br>
Write a bug if you think this is needed and state why.<br>
<br>
Thanks,<br>
  -Steve<br>
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