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I have some GeoTIFF files that I am showing on an openLayers map using GeoServer. Now, I wish to access a Build Raster Attribute table on my web application. In other words, if a user clicks on a point on the GeoTIFF raster layer, they should see the corresponding value shown by ArcMAP in Raster Attribute Table. I am new to the GIS.

I am thinking of creating a database with PostGIS, but I don't know how I should map the Raster Attribute Table in the database.

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