[postgis-users] How to Update Geometry table

[venkat]

Dear All,

How can I update geometry table...Please anyone guide me.

I am trying below query ,but i am getting error.

update split_polys10
 set geom =( SELECT geom FROM dump ((
   SELECT polygonize(geomunion(boundary(poly.geom),'LINESTRING (34.99
7.055,2.74 0.936)'))
   FROM poly
)));

ERROR:  more than one row returned by a subquery used as an expression

Thanks and Regards,

Ven
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