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There is a spatial function called ST_Union that would help, but you may not have the right version of MySQL to use it. Here's a way that you can manipulate the WKT directly using GROUP_CONCAT. It will allow you to create a MULTILINESTRING. Alternatively, you could create a GEOMETRYCOLLECTION the same way. Note that you may run out of memory, so have a ...


If you want to do it with PHP - MySQL here is a solution that worked for me: <script type="text/javascript" charset="utf-8"> var customIcons = { restaurant: { icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png', shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png' }, bar: { ...

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