I am using Postgis 2.4 with posgresql 10 in Windows 10. I have the following SQL query:
WITH data (the_geom) as ( SELECT a.gid, CASE WHEN ST_Within(a.geom,b.geom) THEN a.geom ELSE ST_Intersection(a.geom,b.geom) END AS the_geom FROM source.g100_wby_lakes_r as a JOIN extents.map_areas as b ON ST_Intersects(a.geom,b.geom) WHERE b.map_id='AA01' ) INSERT into public.g100_wby_lakes_r (gid,geom) select * from data where st_GeometryType(the_geom)='MULTIPOLYGON';
It tries to select the intersection between two multipolygons and only insert into a new table the intersected geometries which are also multipolygons (the intersection could also result in points or lines). All works except for the WHERE clause which gives the following error:
ERROR: column reference "the_geom" is ambiguous LINE 4: ...id,geom) select * from data where st_GeometryType(the_geom)=... ^ SQL state: 42702 Character: 351
Why is the_geom ambiguous? How can I change the SQL to make it work? Thank you
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