Using ST_Extrude in Postgres 9.2, with PostGIS 2.2.0

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I'm trying to use the function ST_Extrude() in Postgres 9.2. I enabled the PostGIS 2.2.0 extension and the PostGIS_SFCGAL extension (which carries the ST_Extrude function).

I can see the function in my list of functions (see snapshot), but I cannot use it.



When I try following SQL code:

CREATE TABLE house ASSELECT id, ST_Extrude(geog, 0, 0, 5) as geomFROM housesWHERE id = 1500;I get an error that the function ST_Extrude does not exist:



Does someone know what is going wrong here?

Wout



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