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Bingo!! I did exactly what Craig said and that worked :) Although I showed just two check constraints above, there were more actually. And that was a blunder me trying to create unique constraints rather than check constraints. Thx for rectifying Craig. What I did Imported the raster data using raster2pgsql command from the terminal. Made a copy of ...


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OK, so you: Dropped a bunch of constraints Did some work Attempted to add a completely unrelated random constraint and that failed You only showed two of the constraints in the output (why?) but the two you showed were CHECK constraints, not UNIQUE constraints. So it makes absolutely no sense to attempt to replace them with a UNIQUE constraint. You ...


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As Craig explained very well, you cannot create a unique index on the type raster without all the necessary operators. Your second best bet to enforce uniqueness is to create a functional index on the text representation: CREATE UNIQUE INDEX us_tmin_enforce_scalex_rast ON chp05.us_tmin (cast(rast as text)) Note that this cannot be implemented as ...


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A unique constraint creates a unique index to implement the constraint. The only index type in PostgreSQL that supports unique indexes is the default b-tree index type; you can't make a unique GIN or GiST index, e.g.: regress=> create unique index indexname on test USING GiST(id) ; ERROR: access method "gist" does not support unique indexes Data types ...


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It seems that I had to re-run the AWS RDS PostGIS instructions: CREATE FUNCTION exec(text) returns text language plpgsql volatile AS $f$ BEGIN EXECUTE $1; RETURN $1; END; $f$; SELECT exec('ALTER TABLE ' || quote_ident(s.nspname) || '.' || quote_ident(s.relname) || ' OWNER TO rds_superuser') FROM ( SELECT nspname, relname FROM pg_class c JOIN ...


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As we can see here all the required packages are rightly updated in the official repository. To solve the problem you can find a good start point here.



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