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  • ST_Transform and ST_SetSRID: To project or not to project?

    calendar Aug 30, 2013 tips · 2 min read  Regina Obe · newbie geometry ST_SetSRID ST_Transform

    People often get confused between the ST_Transform and ST_SetSRID functions.

    1. ST_SetSRID doesn't change the coordinates but adds meta data to state what spatial reference system the coordinate actually are. If you stamped your WGS 84 long lat data as a meter based projection. Guess what? Its still long lat. A spade …


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