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Jeemin Sim (Work Log) (view source)

107 bytes added , 10:10, 21 September 2017

'''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.

'''ST_GeoHash(geometry A)''': Returns a text string representing the GeoHash of the bounds of the object.

*Native functions for geogrphy:

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