add postgis tuning to speed up import

run.sh

@@ -37,6 +37,8 @@ if [ "$1" = "import" ]; then
     sudo -u postgres createdb -E UTF8 -O renderer gis
     sudo -u postgres psql -d gis -c "CREATE EXTENSION postgis;"
     sudo -u postgres psql -d gis -c "CREATE EXTENSION hstore;"
+    sudo -u postgres psql -d gis -c "ALTER SYSTEM SET work_mem='16MB';"
+    sudo -u postgres psql -d gis -c "ALTER SYSTEM SET maintenance_work_mem='256MB';"
     sudo -u postgres psql -d gis -c "ALTER TABLE geometry_columns OWNER TO renderer;"
     sudo -u postgres psql -d gis -c "ALTER TABLE spatial_ref_sys OWNER TO renderer;"
     setPostgresPassword