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Jeemin Sim (Work Log) (view source)

174 bytes added , 14:17, 19 September 2017

'''ST_Touches(geometry A, geometry B)''' returns the true if the boundary of geometry A touches geometry B

'''ST_Within(geometry A, geometry B)''' returns the true if geometry A is within geometry B

geometry_a '''&&''' geometry_b: Returns TRUE if A’s bounding box overlaps B’s.

geometry_a '''=''' geometry_b: Returns TRUE if A’s bounding box is the same as B’s.

* Continue reading from: http://workshops.boundlessgeo.com/postgis-intro/joins_exercises.html

[[Category:Work Log]]

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