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<p class="MsoNormal">Hello List, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve got two polyline tables. I’m attempting to segment my lines by the intersections of the other lines.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">create table segments as SELECT ST_CollectionExtract(ST_Split(a.newgeom,b.geom),2) as geom from<o:p></o:p></p>
<p class="MsoNormal"> line1 a, line2 b WHERE ST_Intersects(a.newgeom,b.geom) = true<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The end result is the geometry that I started with. What am I doing wrong?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:2.0pt;line-height:8.15pt;mso-line-height-rule:exactly;punctuation-wrap:simple;text-autospace:none">
<b><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565;letter-spacing:-.05pt">Alex Mahrou</span></b><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
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<i><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565">Oil, Gas & Chemicals<o:p></o:p></span></i></p>
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<span style="font-family:"Times New Roman","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="punctuation-wrap:simple;text-autospace:none"><b><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565;letter-spacing:-.05pt">CH2</span></b><b><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565">M<span style="letter-spacing:-.5pt">
</span><span style="letter-spacing:-.05pt">H</span><span style="letter-spacing:.05pt">I</span><span style="letter-spacing:-.05pt">LL<o:p></o:p></span></span></b></p>
<p class="MsoNormal" style="punctuation-wrap:simple;text-autospace:none"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565;letter-spacing:-.05pt">9191 S. Jamaica St.<o:p></o:p></span></p>
<p class="MsoNormal" style="punctuation-wrap:simple;text-autospace:none"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565;letter-spacing:-.05pt">Englewood, CO 80112<o:p></o:p></span></p>
<p class="MsoNormal" style="punctuation-wrap:simple;text-autospace:none"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#656565;letter-spacing:-.05pt"><a href="www.ch2m.com">www.ch2m.com</a></span><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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