| dbAddKey | Add key. | 
| dbAsDate | Converts to timestamp. | 
| dbColumn | Add or remove a column. | 
| dbComment | Comment table/view/schema. | 
| dbDrop | Drop table/view/schema. | 
| dbIndex | Create an index. | 
| dbReadDataFrame | Write/read in data frame mode to/from database table. | 
| dbReadDF | Write/read in data frame mode to/from database table. | 
| dbSchema | Check and create schema. | 
| dbTableInfo | Get information about table columns. | 
| dbVacuum | Vacuum. | 
| dbWriteDataFrame | Write/read in data frame mode to/from database table. | 
| dbWriteDF | Write/read in data frame mode to/from database table. | 
| pgGetBoundary | Retrieve bounding envelope of geometries or rasters. | 
| pgGetGeom | Load a PostGIS geometry from a PostgreSQL table/view/query into R. | 
| pgGetRast | Load raster from PostGIS database into R. | 
| pgInsert | Inserts data into a PostgreSQL table. | 
| pgListGeom | List geometries/rasters | 
| pgListRast | List geometries/rasters | 
| pgMakePts | Add a POINT or LINESTRING geometry field. | 
| pgMakeStp | Add a POINT or LINESTRING geometry field. | 
| pgPostGIS | Check and create PostGIS extension. | 
| pgSRID | Find (or create) PostGIS SRID based on CRS object. | 
| pgWriteGeom | Inserts data into a PostgreSQL table. | 
| pgWriteRast | Write raster to PostGIS database table. | 
| print.pgi | Inserts data into a PostgreSQL table. |