configuration also limits the hot-standby server to host read-only databases,thereby prohibiting the antmaps.org web application to overwrite and change the data available in the GABI database.Within the GABI database,any information that can be displayed on antmaps.org is located in a separate schema.As the data to visualize is a subset of,or is calculated from,the primary GABI records table, we implemented a number of materialized views to accommodate the range of tasks isers can perform on the antmap.org frontend while maintaining fast performance and accessibility