PostgreSQL can just implement the SQL/MDA (MUlti-Dimensional Arrays) standard; they are famous for implementing virtually all of SQL, so this might come in futu

PostgreSQL can just implement the SQL/MDA (MUlti-Dimensional Arrays) standard; they are famous for implementing virtually all of SQL, so this might come in future. PostGIS Raster is an on-top attempt which is benchmarked in the paper as well BTW.