<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"> </p><p class="MsoNormal">
ERROR: source contains a null value</p><p class="MsoNormal">CONTEXT: PL/pgSQL function "dijkstra_sp" line 12 at cycle FOR in an instruction EXECUTE</p></div></div></blockquote><div><br></div><div>Can you inspect your data and check that there is no empty "source" attribute? </div>
<div><br></div><div>Daniel</div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div lang="EN-US" link="blue" vlink="purple">
<div><p class="MsoNormal"> </p><p class="MsoNormal">Any idea about what went wrong?</p><p class="MsoNormal">Thanks a lot!</p><p class="MsoNormal">Maria</p><font color="#888888"><p class="MsoNormal"> </p><p class="MsoNormal">
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