[postgis-users] rounding off geometry coordinates

[toni hernández]

Hello,

I need to round off all the coordinates of some polygon geometries.
So far I am using the st_asgeojson function to use the precision I need, 
and then I create a new geometry from the GeoJSon I have just created.

Something like this:
SELECT ST_ST_GeomFromGeoJSON(ST_AsGeoJSON(value_old,geom_precision))

Is there a more efficent way to do this?.