[postgis-users] Importing timezone shape files - newbie

Nicolas Ribot nicolas.ribot at gmail.com
Thu Apr 5 09:41:20 PDT 2012

> Can someone explain the difference between the two types of shape
> files and the advantages/disadvantages of each in more general terms?

As far as I understandd from http://efele.net/maps/tz/world/:

"and a TZ timezone will sometimes have multiple polygons. " for the
first file, and
" and there is a single geometry for each TZ timezone" for the second one.

The big shapefile contains one multipolygon by timezone and by
country, the small one contains one polygon for each part of a country
(islands for instance) for each timezone, thus the count difference .


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