Hi there,

I am not actually a POSTGIS user, or developer, although I am doing some research of integration of vector -raster in a dbms context. My main question s about identifying regions represented in a domain like the "hybrid raster" so that they can be referred to in a query. For example, I would like to write something like "/*select d from districts where d.geometry touches flooding*/", where "flooding" indicates an expression intended to decide on the pertinence of locations to a flooding ​​risk area described, for instance through map algebra.

Thanks for any hints or suggestions.

Att.

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