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Jeemin Sim (Work Log) (view source)

124 bytes added , 11:09, 21 September 2017

'''ST_Union()''': Returns a geometry that represents the point set union of the Geometries.

'''substring(string [from int] [for int])''': PostgreSQL string function to extract substring matching SQL regular expression.

'''ST_Relate(geometry A, geometry B)''': Returns a text string representing the DE9IM relationship between the geometries.

*Native functions for geogrphy:

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