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I need to extract all pixel values in a raster within a GeoJSON mask, using ST_Intersects.

Attempt (throws invalid GeoJson representation):

select row_to_json(t) from (select * from table_name where st_intersects(st_transform(st_setsrid(ST_geomfromgeojson('{"type":"FeatureCollection","features": []}'), 4326), 3857), rast)) as t;

It seems FeatureCollection type GeoJSON is not straight-forward. How can I wrap this?

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  • The GeoJSON is a dummy, obviously. A simple polygon like this throws the same error.
    – knutole
    May 9, 2016 at 16:36

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