
COMMENT ON FUNCTION AddRasterConstraints(name , name , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean ) IS 'args: rasttable, rastcolumn, srid=true, scale_x=true, scale_y=true, blocksize_x=true, blocksize_y=true, same_alignment=true, regular_blocking=false, num_bands=true, pixel_types=true, nodata_values=true, out_db=true, extent=true - Adds raster constraints to a loaded raster table for a specific column that constrains spatial ref, scaling, blocksize, alignment, bands, band type and a flag to denote if raster column is regularly blocked. The table must be loaded with data for the constraints to be inferred. Returns true if the constraint setting was accomplished and issues a notice otherwise.';
			
COMMENT ON FUNCTION AddRasterConstraints(name , name , text[] ) IS 'args: rasttable, rastcolumn, VARIADIC constraints - Adds raster constraints to a loaded raster table for a specific column that constrains spatial ref, scaling, blocksize, alignment, bands, band type and a flag to denote if raster column is regularly blocked. The table must be loaded with data for the constraints to be inferred. Returns true if the constraint setting was accomplished and issues a notice otherwise.';
			
COMMENT ON FUNCTION AddRasterConstraints(name , name , name , text[] ) IS 'args: rastschema, rasttable, rastcolumn, VARIADIC constraints - Adds raster constraints to a loaded raster table for a specific column that constrains spatial ref, scaling, blocksize, alignment, bands, band type and a flag to denote if raster column is regularly blocked. The table must be loaded with data for the constraints to be inferred. Returns true if the constraint setting was accomplished and issues a notice otherwise.';
			
COMMENT ON FUNCTION AddRasterConstraints(name , name , name , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean ) IS 'args: rastschema, rasttable, rastcolumn, srid=true, scale_x=true, scale_y=true, blocksize_x=true, blocksize_y=true, same_alignment=true, regular_blocking=false, num_bands=true, pixel_types=true, nodata_values=true, out_db=true, extent=true - Adds raster constraints to a loaded raster table for a specific column that constrains spatial ref, scaling, blocksize, alignment, bands, band type and a flag to denote if raster column is regularly blocked. The table must be loaded with data for the constraints to be inferred. Returns true if the constraint setting was accomplished and issues a notice otherwise.';
			
COMMENT ON FUNCTION DropRasterConstraints(name , name , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean ) IS 'args: rasttable, rastcolumn, srid, scale_x, scale_y, blocksize_x, blocksize_y, same_alignment, regular_blocking, num_bands=true, pixel_types=true, nodata_values=true, out_db=true, extent=true - Drops PostGIS raster constraints that refer to a raster table column. Useful if you need to reload data or update your raster column data.';
			
COMMENT ON FUNCTION DropRasterConstraints(name , name , name , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean , boolean ) IS 'args: rastschema, rasttable, rastcolumn, srid=true, scale_x=true, scale_y=true, blocksize_x=true, blocksize_y=true, same_alignment=true, regular_blocking=false, num_bands=true, pixel_types=true, nodata_values=true, out_db=true, extent=true - Drops PostGIS raster constraints that refer to a raster table column. Useful if you need to reload data or update your raster column data.';
			
COMMENT ON FUNCTION DropRasterConstraints(name , name , name , text[] ) IS 'args: rastschema, rasttable, rastcolumn, constraints - Drops PostGIS raster constraints that refer to a raster table column. Useful if you need to reload data or update your raster column data.';
			
COMMENT ON FUNCTION AddOverviewConstraints(name , name , name , name , name , name , int ) IS 'args: ovschema, ovtable, ovcolumn, refschema, reftable, refcolumn, ovfactor - Tag a raster column as being an overview of another.';
			
COMMENT ON FUNCTION AddOverviewConstraints(name , name , name , name , int ) IS 'args: ovtable, ovcolumn, reftable, refcolumn, ovfactor - Tag a raster column as being an overview of another.';
			
COMMENT ON FUNCTION DropOverviewConstraints(name , name , name ) IS 'args: ovschema, ovtable, ovcolumn - Untag a raster column from being an overview of another.';
			
COMMENT ON FUNCTION DropOverviewConstraints(name , name ) IS 'args: ovtable, ovcolumn - Untag a raster column from being an overview of another.';
			
COMMENT ON FUNCTION PostGIS_GDAL_Version() IS 'Reports the version of the GDAL library in use by PostGIS.';
			
COMMENT ON FUNCTION PostGIS_Raster_Lib_Build_Date() IS 'Reports full raster library build date.';
			
COMMENT ON FUNCTION PostGIS_Raster_Lib_Version() IS 'Reports full raster version and build configuration infos.';
			
COMMENT ON FUNCTION ST_GDALDrivers() IS 'args: OUT idx, OUT short_name, OUT long_name, OUT can_read, OUT can_write, OUT create_options - Returns a list of raster formats supported by PostGIS through GDAL. Only those formats with can_write=True can be used by ST_AsGDALRaster';
			
COMMENT ON FUNCTION ST_Contour(raster , integer , double precision , double precision , double precision[] , boolean ) IS 'args: rast, bandnumber=1, level_interval=100.0, level_base=0.0, fixed_levels=ARRAY[], polygonize=false - Generates a set of vector contours from the provided raster band, using the GDAL contouring algorithm.';
			
COMMENT ON FUNCTION ST_InterpolateRaster(geometry , text , raster , integer ) IS 'args: input_points, algorithm_options, template, template_band_num=1 - Interpolates a gridded surface based on an input set of 3-d points, using the X- and Y-values to position the points on the grid and the Z-value of the points as the surface elevation.';
			
COMMENT ON FUNCTION UpdateRasterSRID(name , name , name , integer ) IS 'args: schema_name, table_name, column_name, new_srid - Change the SRID of all rasters in the user-specified column and table.';
			
COMMENT ON FUNCTION UpdateRasterSRID(name , name , integer ) IS 'args: table_name, column_name, new_srid - Change the SRID of all rasters in the user-specified column and table.';
			
COMMENT ON FUNCTION ST_CreateOverview(regclass , name , int , text ) IS 'args: tab, col, factor, algo=''NearestNeighbor'' - Create an reduced resolution version of a given raster coverage.';
			
COMMENT ON FUNCTION ST_AddBand(raster , addbandarg[] ) IS 'args: rast, addbandargset - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , integer , text , double precision , double precision ) IS 'args: rast, index, pixeltype, initialvalue=0, nodataval=NULL - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , text , double precision , double precision ) IS 'args: rast, pixeltype, initialvalue=0, nodataval=NULL - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , raster , integer , integer ) IS 'args: torast, fromrast, fromband=1, torastindex=at_end - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , raster[] , integer , integer ) IS 'args: torast, fromrasts, fromband=1, torastindex=at_end - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , integer , text , integer[] , double precision ) IS 'args: rast, index, outdbfile, outdbindex, nodataval=NULL - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AddBand(raster , text , integer[] , integer , double precision ) IS 'args: rast, outdbfile, outdbindex, index=at_end, nodataval=NULL - Returns a raster with the new band(s) of given type added with given initial value in the given index location. If no index is specified, the band is added to the end.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , raster , text , double precision , double precision , boolean ) IS 'args: geom, ref, pixeltype, value=1, nodataval=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , raster , text[] , double precision[] , double precision[] , boolean ) IS 'args: geom, ref, pixeltype=ARRAY[''8BUI''], value=ARRAY[1], nodataval=ARRAY[0], touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , double precision , double precision , double precision , double precision , text , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, scalex, scaley, gridx, gridy, pixeltype, value=1, nodataval=0, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , double precision , double precision , double precision , double precision , text[] , double precision[] , double precision[] , double precision , double precision , boolean ) IS 'args: geom, scalex, scaley, gridx=NULL, gridy=NULL, pixeltype=ARRAY[''8BUI''], value=ARRAY[1], nodataval=ARRAY[0], skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , double precision , double precision , text , double precision , double precision , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, scalex, scaley, pixeltype, value=1, nodataval=0, upperleftx=NULL, upperlefty=NULL, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , double precision , double precision , text[] , double precision[] , double precision[] , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, scalex, scaley, pixeltype, value=ARRAY[1], nodataval=ARRAY[0], upperleftx=NULL, upperlefty=NULL, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , integer , integer , double precision , double precision , text , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, width, height, gridx, gridy, pixeltype, value=1, nodataval=0, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , integer , integer , double precision , double precision , text[] , double precision[] , double precision[] , double precision , double precision , boolean ) IS 'args: geom, width, height, gridx=NULL, gridy=NULL, pixeltype=ARRAY[''8BUI''], value=ARRAY[1], nodataval=ARRAY[0], skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , integer , integer , text , double precision , double precision , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, width, height, pixeltype, value=1, nodataval=0, upperleftx=NULL, upperlefty=NULL, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRaster(geometry , integer , integer , text[] , double precision[] , double precision[] , double precision , double precision , double precision , double precision , boolean ) IS 'args: geom, width, height, pixeltype, value=ARRAY[1], nodataval=ARRAY[0], upperleftx=NULL, upperlefty=NULL, skewx=0, skewy=0, touched=false - Converts a PostGIS geometry to a PostGIS raster.';
			
COMMENT ON FUNCTION ST_AsRasterAgg(geometry , double precision , raster , text , double precision , text , boolean ) IS 'args: geom, val, ref, pixeltype, nodataval, uniontype, touched - Aggregate. Renders PostGIS geometries into a new raster.';
			
COMMENT ON FUNCTION ST_Band(raster , integer[] ) IS 'args: rast, nbands = ARRAY[1] - Returns one or more bands of an existing raster as a new raster. Useful for building new rasters from existing rasters.';
			
COMMENT ON FUNCTION ST_Band(raster , integer ) IS 'args: rast, nband - Returns one or more bands of an existing raster as a new raster. Useful for building new rasters from existing rasters.';
			
COMMENT ON FUNCTION ST_Band(raster , text , character ) IS 'args: rast, nbands, delimiter=, - Returns one or more bands of an existing raster as a new raster. Useful for building new rasters from existing rasters.';
			
COMMENT ON FUNCTION ST_MakeEmptyCoverage(integer , integer , integer , integer , double precision , double precision , double precision , double precision , double precision , double precision , integer ) IS 'args: tilewidth, tileheight, width, height, upperleftx, upperlefty, scalex, scaley, skewx, skewy, srid=unknown - Cover georeferenced area with a grid of empty raster tiles.';
			
COMMENT ON FUNCTION ST_MakeEmptyRaster(raster ) IS 'args: rast - Returns an empty raster (having no bands) of given dimensions (width & height), upperleft X and Y, pixel size and rotation (scalex, scaley, skewx & skewy) and reference system (srid). If a raster is passed in, returns a new raster with the same size, alignment and SRID. If srid is left out, the spatial ref is set to unknown (0).';
			
COMMENT ON FUNCTION ST_MakeEmptyRaster(integer , integer , float8 , float8 , float8 , float8 , float8 , float8 , integer ) IS 'args: width, height, upperleftx, upperlefty, scalex, scaley, skewx, skewy, srid=unknown - Returns an empty raster (having no bands) of given dimensions (width & height), upperleft X and Y, pixel size and rotation (scalex, scaley, skewx & skewy) and reference system (srid). If a raster is passed in, returns a new raster with the same size, alignment and SRID. If srid is left out, the spatial ref is set to unknown (0).';
			
COMMENT ON FUNCTION ST_MakeEmptyRaster(integer , integer , float8  , float8  , float8  ) IS 'args: width, height, upperleftx, upperlefty, pixelsize - Returns an empty raster (having no bands) of given dimensions (width & height), upperleft X and Y, pixel size and rotation (scalex, scaley, skewx & skewy) and reference system (srid). If a raster is passed in, returns a new raster with the same size, alignment and SRID. If srid is left out, the spatial ref is set to unknown (0).';
			
COMMENT ON FUNCTION ST_Tile(raster , int[] , integer , integer , boolean , double precision ) IS 'args: rast, nband, width, height, padwithnodata=FALSE, nodataval=NULL - Returns a set of rasters resulting from the split of the input raster based upon the desired dimensions of the output rasters.';
			
COMMENT ON FUNCTION ST_Tile(raster , integer , integer , integer , boolean , double precision ) IS 'args: rast, nband, width, height, padwithnodata=FALSE, nodataval=NULL - Returns a set of rasters resulting from the split of the input raster based upon the desired dimensions of the output rasters.';
			
COMMENT ON FUNCTION ST_Tile(raster , integer , integer , boolean , double precision ) IS 'args: rast, width, height, padwithnodata=FALSE, nodataval=NULL - Returns a set of rasters resulting from the split of the input raster based upon the desired dimensions of the output rasters.';
			
COMMENT ON FUNCTION ST_Retile(regclass , name , geometry , float8 , float8 , int , int , text ) IS 'args: tab, col, ext, sfx, sfy, tw, th, algo=''NearestNeighbor'' - Return a set of configured tiles from an arbitrarily tiled raster coverage.';
			
COMMENT ON FUNCTION ST_FromGDALRaster(bytea , integer ) IS 'args: gdaldata, srid=NULL - Returns a raster from a supported GDAL raster file.';
			
COMMENT ON FUNCTION ST_GeoReference(raster , text ) IS 'args: rast, format=GDAL - Returns the georeference meta data in GDAL or ESRI format as commonly seen in a world file. Default is GDAL.';
			
COMMENT ON FUNCTION ST_Height(raster ) IS 'args: rast - Returns the height of the raster in pixels.';
			
COMMENT ON FUNCTION ST_IsEmpty(raster ) IS 'args: rast - Returns true if the raster is empty (width = 0 and height = 0). Otherwise, returns false.';
			
COMMENT ON FUNCTION ST_MemSize(raster ) IS 'args: rast - Returns the amount of space (in bytes) the raster takes.';
			
COMMENT ON FUNCTION ST_MetaData(raster ) IS 'args: rast - Returns basic meta data about a raster object such as pixel size, rotation (skew), upper, lower left, etc.';
			
COMMENT ON FUNCTION ST_NumBands(raster ) IS 'args: rast - Returns the number of bands in the raster object.';
			
COMMENT ON FUNCTION ST_PixelHeight(raster ) IS 'args: rast - Returns the pixel height in geometric units of the spatial reference system.';
			
COMMENT ON FUNCTION ST_PixelWidth(raster ) IS 'args: rast - Returns the pixel width in geometric units of the spatial reference system.';
			
COMMENT ON FUNCTION ST_ScaleX(raster ) IS 'args: rast - Returns the X component of the pixel width in units of coordinate reference system.';
			
COMMENT ON FUNCTION ST_ScaleY(raster ) IS 'args: rast - Returns the Y component of the pixel height in units of coordinate reference system.';
			
COMMENT ON FUNCTION ST_RasterToWorldCoord(raster , integer , integer ) IS 'args: rast, xcolumn, yrow - Returns the rasters upper left corner as geometric X and Y (longitude and latitude) given a column and row. Column and row starts at 1.';
			
COMMENT ON FUNCTION ST_RasterToWorldCoordX(raster , integer ) IS 'args: rast, xcolumn - Returns the geometric X coordinate upper left of a raster, column and row. Numbering of columns and rows starts at 1.';
			
COMMENT ON FUNCTION ST_RasterToWorldCoordX(raster , integer , integer ) IS 'args: rast, xcolumn, yrow - Returns the geometric X coordinate upper left of a raster, column and row. Numbering of columns and rows starts at 1.';
			
COMMENT ON FUNCTION ST_RasterToWorldCoordY(raster , integer ) IS 'args: rast, yrow - Returns the geometric Y coordinate upper left corner of a raster, column and row. Numbering of columns and rows starts at 1.';
			
COMMENT ON FUNCTION ST_RasterToWorldCoordY(raster , integer , integer ) IS 'args: rast, xcolumn, yrow - Returns the geometric Y coordinate upper left corner of a raster, column and row. Numbering of columns and rows starts at 1.';
			
COMMENT ON FUNCTION ST_Rotation(raster) IS 'args: rast - Returns the rotation of the raster in radian.';
			
COMMENT ON FUNCTION ST_SkewX(raster ) IS 'args: rast - Returns the georeference X skew (or rotation parameter).';
			
COMMENT ON FUNCTION ST_SkewY(raster ) IS 'args: rast - Returns the georeference Y skew (or rotation parameter).';
			
COMMENT ON FUNCTION ST_SRID(raster ) IS 'args: rast - Returns the spatial reference identifier of the raster as defined in spatial_ref_sys table.';
			
COMMENT ON FUNCTION ST_Summary(raster ) IS 'args: rast - Returns a text summary of the contents of the raster.';
			
COMMENT ON FUNCTION ST_UpperLeftX(raster ) IS 'args: rast - Returns the upper left X coordinate of raster in projected spatial ref.';
			
COMMENT ON FUNCTION ST_UpperLeftY(raster ) IS 'args: rast - Returns the upper left Y coordinate of raster in projected spatial ref.';
			
COMMENT ON FUNCTION ST_Width(raster ) IS 'args: rast - Returns the width of the raster in pixels.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoord(raster , geometry ) IS 'args: rast, pt - Returns the upper left corner as column and row given geometric X and Y (longitude and latitude) or a point geometry expressed in the spatial reference coordinate system of the raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoord(raster , double precision , double precision ) IS 'args: rast, longitude, latitude - Returns the upper left corner as column and row given geometric X and Y (longitude and latitude) or a point geometry expressed in the spatial reference coordinate system of the raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordX(raster , geometry ) IS 'args: rast, pt - Returns the column in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordX(raster , double precision ) IS 'args: rast, xw - Returns the column in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordX(raster , double precision , double precision ) IS 'args: rast, xw, yw - Returns the column in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordY(raster , geometry ) IS 'args: rast, pt - Returns the row in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordY(raster , double precision ) IS 'args: rast, xw - Returns the row in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_WorldToRasterCoordY(raster , double precision , double precision ) IS 'args: rast, xw, yw - Returns the row in the raster of the point geometry (pt) or a X and Y world coordinate (xw, yw) represented in world spatial reference system of raster.';
			
COMMENT ON FUNCTION ST_BandMetaData(raster , integer ) IS 'args: rast, band=1 - Returns basic meta data for a specific raster band. band num 1 is assumed if none-specified.';
			
COMMENT ON FUNCTION ST_BandMetaData(raster , integer[] ) IS 'args: rast, band - Returns basic meta data for a specific raster band. band num 1 is assumed if none-specified.';
			
COMMENT ON FUNCTION ST_BandNoDataValue(raster , integer ) IS 'args: rast, bandnum=1 - Returns the value in a given band that represents no data. If no band num 1 is assumed.';
			
COMMENT ON FUNCTION ST_BandIsNoData(raster , integer , boolean ) IS 'args: rast, band, forceChecking=true - Returns true if the band is filled with only nodata values.';
			
COMMENT ON FUNCTION ST_BandIsNoData(raster , boolean ) IS 'args: rast, forceChecking=true - Returns true if the band is filled with only nodata values.';
			
COMMENT ON FUNCTION ST_BandPath(raster , integer ) IS 'args: rast, bandnum=1 - Returns system file path to a band stored in file system. If no bandnum specified, 1 is assumed.';
			
COMMENT ON FUNCTION ST_BandFileSize(raster , integer ) IS 'args: rast, bandnum=1 - Returns the file size of a band stored in file system. If no bandnum specified, 1 is assumed.';
			
COMMENT ON FUNCTION ST_BandFileTimestamp(raster , integer ) IS 'args: rast, bandnum=1 - Returns the file timestamp of a band stored in file system. If no bandnum specified, 1 is assumed.';
			
COMMENT ON FUNCTION ST_BandPixelType(raster , integer ) IS 'args: rast, bandnum=1 - Returns the type of pixel for given band. If no bandnum specified, 1 is assumed.';
			
COMMENT ON FUNCTION ST_MinPossibleValue(text ) IS 'args: pixeltype - Returns the minimum value this pixeltype can store.';
			
COMMENT ON FUNCTION ST_HasNoBand(raster , integer ) IS 'args: rast, bandnum=1 - Returns true if there is no band with given band number. If no band number is specified, then band number 1 is assumed.';
			
COMMENT ON FUNCTION ST_PixelAsPolygon(raster , integer , integer ) IS 'args: rast, columnx, rowy - Returns the polygon geometry that bounds the pixel for a particular row and column.';
			
COMMENT ON FUNCTION ST_PixelAsPolygons(raster , integer , boolean ) IS 'args: rast, band=1, exclude_nodata_value=TRUE - Returns the polygon geometry that bounds every pixel of a raster band along with the value, the X and the Y raster coordinates of each pixel.';
			
COMMENT ON FUNCTION ST_PixelAsPoint(raster , integer , integer ) IS 'args: rast, columnx, rowy - Returns a point geometry of the pixels upper-left corner.';
			
COMMENT ON FUNCTION ST_PixelAsPoints(raster , integer , boolean ) IS 'args: rast, band=1, exclude_nodata_value=TRUE - Returns a point geometry for each pixel of a raster band along with the value, the X and the Y raster coordinates of each pixel. The coordinates of the point geometry are of the pixels upper-left corner.';
			
COMMENT ON FUNCTION ST_PixelAsCentroid(raster , integer , integer ) IS 'args: rast, x, y - Returns the centroid (point geometry) of the area represented by a pixel.';
			
COMMENT ON FUNCTION ST_PixelAsCentroids(raster , integer , boolean ) IS 'args: rast, band=1, exclude_nodata_value=TRUE - Returns the centroid (point geometry) for each pixel of a raster band along with the value, the X and the Y raster coordinates of each pixel. The point geometry is the centroid of the area represented by a pixel.';
			
COMMENT ON FUNCTION ST_Value(raster , geometry , boolean ) IS 'args: rast, pt, exclude_nodata_value=true - Returns the value of a given band in a given columnx, rowy pixel or at a particular geometric point. Band numbers start at 1 and assumed to be 1 if not specified. If exclude_nodata_value is set to false, then all pixels include nodata pixels are considered to intersect and return value. If exclude_nodata_value is not passed in then reads it from metadata of raster.';
			
COMMENT ON FUNCTION ST_Value(raster , integer , geometry , boolean , text ) IS 'args: rast, band, pt, exclude_nodata_value=true, resample=''nearest'' - Returns the value of a given band in a given columnx, rowy pixel or at a particular geometric point. Band numbers start at 1 and assumed to be 1 if not specified. If exclude_nodata_value is set to false, then all pixels include nodata pixels are considered to intersect and return value. If exclude_nodata_value is not passed in then reads it from metadata of raster.';
			
COMMENT ON FUNCTION ST_Value(raster , integer , integer , boolean ) IS 'args: rast, x, y, exclude_nodata_value=true - Returns the value of a given band in a given columnx, rowy pixel or at a particular geometric point. Band numbers start at 1 and assumed to be 1 if not specified. If exclude_nodata_value is set to false, then all pixels include nodata pixels are considered to intersect and return value. If exclude_nodata_value is not passed in then reads it from metadata of raster.';
			
COMMENT ON FUNCTION ST_Value(raster , integer , integer , integer , boolean ) IS 'args: rast, band, x, y, exclude_nodata_value=true - Returns the value of a given band in a given columnx, rowy pixel or at a particular geometric point. Band numbers start at 1 and assumed to be 1 if not specified. If exclude_nodata_value is set to false, then all pixels include nodata pixels are considered to intersect and return value. If exclude_nodata_value is not passed in then reads it from metadata of raster.';
			
COMMENT ON FUNCTION ST_NearestValue(raster , integer , geometry , boolean ) IS 'args: rast, bandnum, pt, exclude_nodata_value=true - Returns the nearest non-NODATA value of a given bands pixel specified by a columnx and rowy or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_NearestValue(raster , geometry , boolean ) IS 'args: rast, pt, exclude_nodata_value=true - Returns the nearest non-NODATA value of a given bands pixel specified by a columnx and rowy or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_NearestValue(raster , integer , integer , integer , boolean ) IS 'args: rast, bandnum, columnx, rowy, exclude_nodata_value=true - Returns the nearest non-NODATA value of a given bands pixel specified by a columnx and rowy or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_NearestValue(raster , integer , integer , boolean ) IS 'args: rast, columnx, rowy, exclude_nodata_value=true - Returns the nearest non-NODATA value of a given bands pixel specified by a columnx and rowy or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_SetZ(raster , geometry , text , integer ) IS 'args: rast, geom, resample=nearest, band=1 - Returns a geometry with the same X/Y coordinates as the input geometry, and values from the raster copied into the Z dimension using the requested resample algorithm.';
			
COMMENT ON FUNCTION ST_SetM(raster , geometry , text , integer ) IS 'args: rast, geom, resample=nearest, band=1 - Returns a geometry with the same X/Y coordinates as the input geometry, and values from the raster copied into the M dimension using the requested resample algorithm.';
			
COMMENT ON FUNCTION ST_Neighborhood(raster , integer , integer , integer , integer , integer , boolean ) IS 'args: rast, bandnum, columnX, rowY, distanceX, distanceY, exclude_nodata_value=true - Returns a 2-D double precision array of the non-NODATA values around a given bands pixel specified by either a columnX and rowY or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_Neighborhood(raster , integer , integer , integer , integer , boolean ) IS 'args: rast, columnX, rowY, distanceX, distanceY, exclude_nodata_value=true - Returns a 2-D double precision array of the non-NODATA values around a given bands pixel specified by either a columnX and rowY or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_Neighborhood(raster , integer , geometry , integer , integer , boolean ) IS 'args: rast, bandnum, pt, distanceX, distanceY, exclude_nodata_value=true - Returns a 2-D double precision array of the non-NODATA values around a given bands pixel specified by either a columnX and rowY or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_Neighborhood(raster , geometry , integer , integer , boolean ) IS 'args: rast, pt, distanceX, distanceY, exclude_nodata_value=true - Returns a 2-D double precision array of the non-NODATA values around a given bands pixel specified by either a columnX and rowY or a geometric point expressed in the same spatial reference coordinate system as the raster.';
			
COMMENT ON FUNCTION ST_SetValue(raster , integer , geometry , double precision ) IS 'args: rast, bandnum, geom, newvalue - Returns modified raster resulting from setting the value of a given band in a given columnx, rowy pixel or the pixels that intersect a particular geometry. Band numbers start at 1 and assumed to be 1 if not specified.';
			
COMMENT ON FUNCTION ST_SetValue(raster , geometry , double precision ) IS 'args: rast, geom, newvalue - Returns modified raster resulting from setting the value of a given band in a given columnx, rowy pixel or the pixels that intersect a particular geometry. Band numbers start at 1 and assumed to be 1 if not specified.';
			
COMMENT ON FUNCTION ST_SetValue(raster , integer , integer , integer , double precision ) IS 'args: rast, bandnum, columnx, rowy, newvalue - Returns modified raster resulting from setting the value of a given band in a given columnx, rowy pixel or the pixels that intersect a particular geometry. Band numbers start at 1 and assumed to be 1 if not specified.';
			
COMMENT ON FUNCTION ST_SetValue(raster , integer , integer , double precision ) IS 'args: rast, columnx, rowy, newvalue - Returns modified raster resulting from setting the value of a given band in a given columnx, rowy pixel or the pixels that intersect a particular geometry. Band numbers start at 1 and assumed to be 1 if not specified.';
			
COMMENT ON FUNCTION ST_SetValues(raster , integer , integer , integer , double precision[][] , boolean[][] , boolean ) IS 'args: rast, nband, columnx, rowy, newvalueset, noset=NULL, keepnodata=FALSE - Returns modified raster resulting from setting the values of a given band.';
			
COMMENT ON FUNCTION ST_SetValues(raster , integer , integer , integer , double precision[][] , double precision , boolean ) IS 'args: rast, nband, columnx, rowy, newvalueset, nosetvalue, keepnodata=FALSE - Returns modified raster resulting from setting the values of a given band.';
			
COMMENT ON FUNCTION ST_SetValues(raster , integer , integer , integer , integer , integer , double precision , boolean ) IS 'args: rast, nband, columnx, rowy, width, height, newvalue, keepnodata=FALSE - Returns modified raster resulting from setting the values of a given band.';
			
COMMENT ON FUNCTION ST_SetValues(raster , integer , integer , integer , integer , double precision , boolean ) IS 'args: rast, columnx, rowy, width, height, newvalue, keepnodata=FALSE - Returns modified raster resulting from setting the values of a given band.';
			
COMMENT ON FUNCTION ST_SetValues(raster , integer , geomval[] , boolean ) IS 'args: rast, nband, geomvalset, keepnodata=FALSE - Returns modified raster resulting from setting the values of a given band.';
			
COMMENT ON FUNCTION ST_DumpValues(raster , integer[] , boolean ) IS 'args: rast, nband=NULL, exclude_nodata_value=true - Get the values of the specified band as a 2-dimension array.';
			
COMMENT ON FUNCTION ST_DumpValues(raster , integer , boolean ) IS 'args: rast, nband, exclude_nodata_value=true - Get the values of the specified band as a 2-dimension array.';
			
COMMENT ON FUNCTION ST_PixelOfValue(raster , integer , double precision[] , boolean ) IS 'args: rast, nband, search, exclude_nodata_value=true - Get the columnx, rowy coordinates of the pixel whose value equals the search value.';
			
COMMENT ON FUNCTION ST_PixelOfValue(raster , double precision[] , boolean ) IS 'args: rast, search, exclude_nodata_value=true - Get the columnx, rowy coordinates of the pixel whose value equals the search value.';
			
COMMENT ON FUNCTION ST_PixelOfValue(raster , integer , double precision , boolean ) IS 'args: rast, nband, search, exclude_nodata_value=true - Get the columnx, rowy coordinates of the pixel whose value equals the search value.';
			
COMMENT ON FUNCTION ST_PixelOfValue(raster , double precision , boolean ) IS 'args: rast, search, exclude_nodata_value=true - Get the columnx, rowy coordinates of the pixel whose value equals the search value.';
			
COMMENT ON FUNCTION ST_SetGeoReference(raster , text , text ) IS 'args: rast, georefcoords, format=GDAL - Set Georeference 6 georeference parameters in a single call. Numbers should be separated by white space. Accepts inputs in GDAL or ESRI format. Default is GDAL.';
			
COMMENT ON FUNCTION ST_SetGeoReference(raster , double precision , double precision , double precision , double precision , double precision , double precision ) IS 'args: rast, upperleftx, upperlefty, scalex, scaley, skewx, skewy - Set Georeference 6 georeference parameters in a single call. Numbers should be separated by white space. Accepts inputs in GDAL or ESRI format. Default is GDAL.';
			
COMMENT ON FUNCTION ST_SetRotation(raster, float8) IS 'args: rast, rotation - Set the rotation of the raster in radian.';
			
COMMENT ON FUNCTION ST_SetScale(raster , float8 ) IS 'args: rast, xy - Sets the X and Y size of pixels in units of coordinate reference system. Number units/pixel width/height.';
			
COMMENT ON FUNCTION ST_SetScale(raster , float8 , float8 ) IS 'args: rast, x, y - Sets the X and Y size of pixels in units of coordinate reference system. Number units/pixel width/height.';
			
COMMENT ON FUNCTION ST_SetSkew(raster , float8 ) IS 'args: rast, skewxy - Sets the georeference X and Y skew (or rotation parameter). If only one is passed in, sets X and Y to the same value.';
			
COMMENT ON FUNCTION ST_SetSkew(raster , float8 , float8 ) IS 'args: rast, skewx, skewy - Sets the georeference X and Y skew (or rotation parameter). If only one is passed in, sets X and Y to the same value.';
			
COMMENT ON FUNCTION ST_SetSRID(raster , integer ) IS 'args: rast, srid - Sets the SRID of a raster to a particular integer srid defined in the spatial_ref_sys table.';
			
COMMENT ON FUNCTION ST_SetUpperLeft(raster , double precision , double precision ) IS 'args: rast, x, y - Sets the value of the upper left corner of the pixel of the raster to projected X and Y coordinates.';
			
COMMENT ON FUNCTION ST_Resample(raster , integer , integer , double precision , double precision , double precision , double precision , text , double precision ) IS 'args: rast, width, height, gridx=NULL, gridy=NULL, skewx=0, skewy=0, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster using a specified resampling algorithm, new dimensions, an arbitrary grid corner and a set of raster georeferencing attributes defined or borrowed from another raster.';
			
COMMENT ON FUNCTION ST_Resample(raster , double precision , double precision , double precision , double precision , double precision , double precision , text , double precision ) IS 'args: rast, scalex=0, scaley=0, gridx=NULL, gridy=NULL, skewx=0, skewy=0, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster using a specified resampling algorithm, new dimensions, an arbitrary grid corner and a set of raster georeferencing attributes defined or borrowed from another raster.';
			
COMMENT ON FUNCTION ST_Resample(raster , raster , text , double precision , boolean ) IS 'args: rast, ref, algorithm=NearestNeighbor, maxerr=0.125, usescale=true - Resample a raster using a specified resampling algorithm, new dimensions, an arbitrary grid corner and a set of raster georeferencing attributes defined or borrowed from another raster.';
			
COMMENT ON FUNCTION ST_Resample(raster , raster , boolean , text , double precision ) IS 'args: rast, ref, usescale, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster using a specified resampling algorithm, new dimensions, an arbitrary grid corner and a set of raster georeferencing attributes defined or borrowed from another raster.';
			
COMMENT ON FUNCTION ST_Rescale(raster , double precision , text , double precision ) IS 'args: rast, scalexy, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by adjusting only its scale (or pixel size). New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline, Lanczos, Max or Min resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Rescale(raster , double precision , double precision , text , double precision ) IS 'args: rast, scalex, scaley, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by adjusting only its scale (or pixel size). New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline, Lanczos, Max or Min resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Reskew(raster , double precision , text , double precision ) IS 'args: rast, skewxy, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by adjusting only its skew (or rotation parameters). New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline or Lanczos resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Reskew(raster , double precision , double precision , text , double precision ) IS 'args: rast, skewx, skewy, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by adjusting only its skew (or rotation parameters). New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline or Lanczos resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_SnapToGrid(raster , double precision , double precision , text , double precision , double precision , double precision ) IS 'args: rast, gridx, gridy, algorithm=NearestNeighbor, maxerr=0.125, scalex=DEFAULT 0, scaley=DEFAULT 0 - Resample a raster by snapping it to a grid. New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline or Lanczos resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_SnapToGrid(raster , double precision , double precision , double precision , double precision , text , double precision ) IS 'args: rast, gridx, gridy, scalex, scaley, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by snapping it to a grid. New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline or Lanczos resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_SnapToGrid(raster , double precision , double precision , double precision , text , double precision ) IS 'args: rast, gridx, gridy, scalexy, algorithm=NearestNeighbor, maxerr=0.125 - Resample a raster by snapping it to a grid. New pixel values are computed using the NearestNeighbor (english or american spelling), Bilinear, Cubic, CubicSpline or Lanczos resampling algorithm. Default is NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Resize(raster , integer , integer , text , double precision ) IS 'args: rast, width, height, algorithm=NearestNeighbor, maxerr=0.125 - Resize a raster to a new width/height';
			
COMMENT ON FUNCTION ST_Resize(raster , double precision , double precision , text , double precision ) IS 'args: rast, percentwidth, percentheight, algorithm=NearestNeighbor, maxerr=0.125 - Resize a raster to a new width/height';
			
COMMENT ON FUNCTION ST_Resize(raster , text , text , text , double precision ) IS 'args: rast, width, height, algorithm=NearestNeighbor, maxerr=0.125 - Resize a raster to a new width/height';
			
COMMENT ON FUNCTION ST_Transform(raster , integer , text , double precision , double precision , double precision ) IS 'args: rast, srid, algorithm=NearestNeighbor, maxerr=0.125, scalex, scaley - Reprojects a raster in a known spatial reference system to another known spatial reference system using specified resampling algorithm. Options are NearestNeighbor, Bilinear, Cubic, CubicSpline, Lanczos defaulting to NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Transform(raster , integer , double precision , double precision , text , double precision ) IS 'args: rast, srid, scalex, scaley, algorithm=NearestNeighbor, maxerr=0.125 - Reprojects a raster in a known spatial reference system to another known spatial reference system using specified resampling algorithm. Options are NearestNeighbor, Bilinear, Cubic, CubicSpline, Lanczos defaulting to NearestNeighbor.';
			
COMMENT ON FUNCTION ST_Transform(raster , raster , text , double precision ) IS 'args: rast, alignto, algorithm=NearestNeighbor, maxerr=0.125 - Reprojects a raster in a known spatial reference system to another known spatial reference system using specified resampling algorithm. Options are NearestNeighbor, Bilinear, Cubic, CubicSpline, Lanczos defaulting to NearestNeighbor.';
			
COMMENT ON FUNCTION ST_SetBandNoDataValue(raster , double precision ) IS 'args: rast, nodatavalue - Sets the value for the given band that represents no data. Band 1 is assumed if no band is specified. To mark a band as having no nodata value, set the nodata value = NULL.';
			
COMMENT ON FUNCTION ST_SetBandNoDataValue(raster , integer , double precision , boolean ) IS 'args: rast, band, nodatavalue, forcechecking=false - Sets the value for the given band that represents no data. Band 1 is assumed if no band is specified. To mark a band as having no nodata value, set the nodata value = NULL.';
			
COMMENT ON FUNCTION ST_SetBandIsNoData(raster , integer ) IS 'args: rast, band=1 - Sets the isnodata flag of the band to TRUE.';
			
COMMENT ON FUNCTION ST_SetBandPath(raster , integer , text , integer , boolean ) IS 'args: rast, band, outdbpath, outdbindex, force=false - Update the external path and band number of an out-db band';
			
COMMENT ON FUNCTION ST_SetBandIndex(raster , integer , integer , boolean ) IS 'args: rast, band, outdbindex, force=false - Update the external band number of an out-db band';
			
COMMENT ON FUNCTION ST_Count(raster , integer , boolean ) IS 'args: rast, nband=1, exclude_nodata_value=true - Returns the number of pixels in a given band of a raster or raster coverage. If no band is specified defaults to band 1. If exclude_nodata_value is set to true, will only count pixels that are not equal to the nodata value.';
			
COMMENT ON FUNCTION ST_Count(raster , boolean ) IS 'args: rast, exclude_nodata_value - Returns the number of pixels in a given band of a raster or raster coverage. If no band is specified defaults to band 1. If exclude_nodata_value is set to true, will only count pixels that are not equal to the nodata value.';
			
COMMENT ON FUNCTION ST_CountAgg(raster , integer , boolean , double precision ) IS 'args: rast, nband, exclude_nodata_value, sample_percent - Aggregate. Returns the number of pixels in a given band of a set of rasters. If no band is specified defaults to band 1. If exclude_nodata_value is set to true, will only count pixels that are not equal to the NODATA value.';
			
COMMENT ON FUNCTION ST_CountAgg(raster , integer , boolean ) IS 'args: rast, nband, exclude_nodata_value - Aggregate. Returns the number of pixels in a given band of a set of rasters. If no band is specified defaults to band 1. If exclude_nodata_value is set to true, will only count pixels that are not equal to the NODATA value.';
			
COMMENT ON FUNCTION ST_CountAgg(raster , boolean ) IS 'args: rast, exclude_nodata_value - Aggregate. Returns the number of pixels in a given band of a set of rasters. If no band is specified defaults to band 1. If exclude_nodata_value is set to true, will only count pixels that are not equal to the NODATA value.';
			
COMMENT ON FUNCTION ST_Histogram(raster , integer , boolean , integer , double precision[] , boolean ) IS 'args: rast, nband=1, exclude_nodata_value=true, bins=autocomputed, width=NULL, right=false - Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.';
			
COMMENT ON FUNCTION ST_Histogram(raster , integer , integer , double precision[] , boolean ) IS 'args: rast, nband, bins, width=NULL, right=false - Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.';
			
COMMENT ON FUNCTION ST_Histogram(raster , integer , boolean , integer , boolean ) IS 'args: rast, nband, exclude_nodata_value, bins, right - Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.';
			
COMMENT ON FUNCTION ST_Histogram(raster , integer , integer , boolean ) IS 'args: rast, nband, bins, right - Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.';
			
COMMENT ON FUNCTION ST_Quantile(raster , integer , boolean , double precision[] ) IS 'args: rast, nband=1, exclude_nodata_value=true, quantiles=NULL - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , double precision[] ) IS 'args: rast, quantiles - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , integer , double precision[] ) IS 'args: rast, nband, quantiles - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , double precision ) IS 'args: rast, quantile - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , boolean , double precision ) IS 'args: rast, exclude_nodata_value, quantile=NULL - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , integer , double precision ) IS 'args: rast, nband, quantile - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , integer , boolean , double precision ) IS 'args: rast, nband, exclude_nodata_value, quantile - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_Quantile(raster , integer , double precision ) IS 'args: rast, nband, quantile - Compute quantiles for a raster or raster table coverage in the context of the sample or population. Thus, a value could be examined to be at the rasters 25%, 50%, 75% percentile.';
			
COMMENT ON FUNCTION ST_SummaryStats(raster , boolean ) IS 'args: rast, exclude_nodata_value - Returns summarystats consisting of count, sum, mean, stddev, min, max for a given raster band of a raster or raster coverage. Band 1 is assumed is no band is specified.';
			
COMMENT ON FUNCTION ST_SummaryStats(raster , integer , boolean ) IS 'args: rast, nband, exclude_nodata_value - Returns summarystats consisting of count, sum, mean, stddev, min, max for a given raster band of a raster or raster coverage. Band 1 is assumed is no band is specified.';
			
COMMENT ON FUNCTION ST_SummaryStatsAgg(raster , integer , boolean , double precision ) IS 'args: rast, nband, exclude_nodata_value, sample_percent - Aggregate. Returns summarystats consisting of count, sum, mean, stddev, min, max for a given raster band of a set of raster. Band 1 is assumed is no band is specified.';
			
COMMENT ON FUNCTION ST_SummaryStatsAgg(raster , boolean , double precision ) IS 'args: rast, exclude_nodata_value, sample_percent - Aggregate. Returns summarystats consisting of count, sum, mean, stddev, min, max for a given raster band of a set of raster. Band 1 is assumed is no band is specified.';
			
COMMENT ON FUNCTION ST_SummaryStatsAgg(raster , integer , boolean ) IS 'args: rast, nband, exclude_nodata_value - Aggregate. Returns summarystats consisting of count, sum, mean, stddev, min, max for a given raster band of a set of raster. Band 1 is assumed is no band is specified.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , integer , boolean , double precision[] , double precision ) IS 'args: rast, nband=1, exclude_nodata_value=true, searchvalues=NULL, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , integer , double precision[] , double precision ) IS 'args: rast, nband, searchvalues, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , double precision[] , double precision ) IS 'args: rast, searchvalues, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , double precision , double precision ) IS 'args: rast, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , integer , boolean , double precision , double precision ) IS 'args: rast, nband, exclude_nodata_value, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(raster , integer , double precision , double precision ) IS 'args: rast, nband, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , integer , boolean , double precision[] , double precision ) IS 'args: rastertable, rastercolumn, nband=1, exclude_nodata_value=true, searchvalues=NULL, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , double precision[] , double precision ) IS 'args: rastertable, rastercolumn, searchvalues, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , integer , double precision[] , double precision ) IS 'args: rastertable, rastercolumn, nband, searchvalues, roundto=0, OUT value, OUT count - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , integer , boolean , double precision , double precision ) IS 'args: rastertable, rastercolumn, nband, exclude_nodata_value, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , double precision , double precision ) IS 'args: rastertable, rastercolumn, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_ValueCount(text , text , integer , double precision , double precision ) IS 'args: rastertable, rastercolumn, nband, searchvalue, roundto=0 - Returns a set of records containing a pixel band value and count of the number of pixels in a given band of a raster (or a raster coverage) that have a given set of values. If no band is specified defaults to band 1. By default nodata value pixels are not counted. and all other values in the pixel are output and pixel band values are rounded to the nearest integer.';
			
COMMENT ON FUNCTION ST_RastFromWKB(bytea ) IS 'args: wkb - Return a raster value from a Well-Known Binary (WKB) raster.';
			
COMMENT ON FUNCTION ST_RastFromHexWKB(text ) IS 'args: wkb - Return a raster value from a Hex representation of Well-Known Binary (WKB) raster.';
			
COMMENT ON FUNCTION ST_AsBinary(raster , boolean ) IS 'args: rast, outasin=FALSE - Return the Well-Known Binary (WKB) representation of the raster.';
			
COMMENT ON FUNCTION ST_AsWKB(raster , boolean ) IS 'args: rast, outasin=FALSE - Return the Well-Known Binary (WKB) representation of the raster.';
			
COMMENT ON FUNCTION ST_AsHexWKB(raster , boolean ) IS 'args: rast, outasin=FALSE - Return the Well-Known Binary (WKB) in Hex representation of the raster.';
			
COMMENT ON FUNCTION ST_AsGDALRaster(raster , text , text[] , integer ) IS 'args: rast, format, options=NULL, srid=sameassource - Return the raster tile in the designated GDAL Raster format. Raster formats are one of those supported by your compiled library. Use ST_GDALDrivers() to get a list of formats supported by your library.';
			
COMMENT ON FUNCTION ST_AsJPEG(raster , text[] ) IS 'args: rast, options=NULL - Return the raster tile selected bands as a single Joint Photographic Exports Group (JPEG) image (byte array). If no band is specified and 1 or more than 3 bands, then only the first band is used. If only 3 bands then all 3 bands are used and mapped to RGB.';
			
COMMENT ON FUNCTION ST_AsJPEG(raster , integer , integer ) IS 'args: rast, nband, quality - Return the raster tile selected bands as a single Joint Photographic Exports Group (JPEG) image (byte array). If no band is specified and 1 or more than 3 bands, then only the first band is used. If only 3 bands then all 3 bands are used and mapped to RGB.';
			
COMMENT ON FUNCTION ST_AsJPEG(raster , integer , text[] ) IS 'args: rast, nband, options=NULL - Return the raster tile selected bands as a single Joint Photographic Exports Group (JPEG) image (byte array). If no band is specified and 1 or more than 3 bands, then only the first band is used. If only 3 bands then all 3 bands are used and mapped to RGB.';
			
COMMENT ON FUNCTION ST_AsJPEG(raster , integer[] , text[] ) IS 'args: rast, nbands, options=NULL - Return the raster tile selected bands as a single Joint Photographic Exports Group (JPEG) image (byte array). If no band is specified and 1 or more than 3 bands, then only the first band is used. If only 3 bands then all 3 bands are used and mapped to RGB.';
			
COMMENT ON FUNCTION ST_AsJPEG(raster , integer[] , integer ) IS 'args: rast, nbands, quality - Return the raster tile selected bands as a single Joint Photographic Exports Group (JPEG) image (byte array). If no band is specified and 1 or more than 3 bands, then only the first band is used. If only 3 bands then all 3 bands are used and mapped to RGB.';
			
COMMENT ON FUNCTION ST_AsPNG(raster , text[] ) IS 'args: rast, options=NULL - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.';
			
COMMENT ON FUNCTION ST_AsPNG(raster , integer , integer ) IS 'args: rast, nband, compression - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.';
			
COMMENT ON FUNCTION ST_AsPNG(raster , integer , text[] ) IS 'args: rast, nband, options=NULL - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.';
			
COMMENT ON FUNCTION ST_AsPNG(raster , integer[] , integer ) IS 'args: rast, nbands, compression - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.';
			
COMMENT ON FUNCTION ST_AsPNG(raster , integer[] , text[] ) IS 'args: rast, nbands, options=NULL - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.';
			
COMMENT ON FUNCTION ST_AsTIFF(raster , text[] , integer ) IS 'args: rast, options='', srid=sameassource - Return the raster selected bands as a single TIFF image (byte array). If no band is specified or any of specified bands does not exist in the raster, then will try to use all bands.';
			
COMMENT ON FUNCTION ST_AsTIFF(raster , text , integer ) IS 'args: rast, compression='', srid=sameassource - Return the raster selected bands as a single TIFF image (byte array). If no band is specified or any of specified bands does not exist in the raster, then will try to use all bands.';
			
COMMENT ON FUNCTION ST_AsTIFF(raster , integer[] , text , integer ) IS 'args: rast, nbands, compression='', srid=sameassource - Return the raster selected bands as a single TIFF image (byte array). If no band is specified or any of specified bands does not exist in the raster, then will try to use all bands.';
			
COMMENT ON FUNCTION ST_AsTIFF(raster , integer[] , text[] , integer ) IS 'args: rast, nbands, options, srid=sameassource - Return the raster selected bands as a single TIFF image (byte array). If no band is specified or any of specified bands does not exist in the raster, then will try to use all bands.';
			
COMMENT ON FUNCTION ST_Clip(raster , integer[] , geometry , double precision[] , boolean , boolean ) IS 'args: rast, nband, geom, nodataval=NULL, crop=TRUE, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_Clip(raster , integer , geometry , double precision , boolean , boolean ) IS 'args: rast, nband, geom, nodataval, crop=TRUE, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_Clip(raster , integer , geometry , boolean , boolean ) IS 'args: rast, nband, geom, crop, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_Clip(raster , geometry , double precision[] , boolean , boolean ) IS 'args: rast, geom, nodataval=NULL, crop=TRUE, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_Clip(raster , geometry , double precision , boolean , boolean ) IS 'args: rast, geom, nodataval, crop=TRUE, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_Clip(raster , geometry , boolean , boolean ) IS 'args: rast, geom, crop, touched=FALSE - Returns the raster clipped by the input geometry. If band number is not specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped. If touched is set to TRUE, then touched pixels are included, otherwise only if the center of the pixel is in the geometry it is included.';
			
COMMENT ON FUNCTION ST_ColorMap(raster , integer , text , text ) IS 'args: rast, nband=1, colormap=grayscale, method=INTERPOLATE - Creates a new raster of up to four 8BUI bands (grayscale, RGB, RGBA) from the source raster and a specified band. Band 1 is assumed if not specified.';
			
COMMENT ON FUNCTION ST_ColorMap(raster , text , text ) IS 'args: rast, colormap, method=INTERPOLATE - Creates a new raster of up to four 8BUI bands (grayscale, RGB, RGBA) from the source raster and a specified band. Band 1 is assumed if not specified.';
			
COMMENT ON FUNCTION ST_Grayscale(raster , integer , integer , integer , text ) IS 'args: rast, redband=1, greenband=2, blueband=3, extenttype=INTERSECTION - Creates a new one-8BUI band raster from the source raster and specified bands representing Red, Green and Blue';
			
COMMENT ON FUNCTION ST_Grayscale(rastbandarg[] , text ) IS 'args: rastbandargset, extenttype=INTERSECTION - Creates a new one-8BUI band raster from the source raster and specified bands representing Red, Green and Blue';
			
COMMENT ON FUNCTION ST_Intersection(geometry , raster , integer ) IS 'args: geom, rast, band_num=1 - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , geometry ) IS 'args: rast, geom - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , integer , geometry ) IS 'args: rast, band, geomin - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , raster , double precision[] ) IS 'args: rast1, rast2, nodataval - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , raster , text , double precision[] ) IS 'args: rast1, rast2, returnband, nodataval - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , integer , raster , integer , double precision[] ) IS 'args: rast1, band1, rast2, band2, nodataval - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_Intersection(raster , integer , raster , integer , text , double precision[] ) IS 'args: rast1, band1, rast2, band2, returnband, nodataval - Returns a raster or a set of geometry-pixelvalue pairs representing the shared portion of two rasters or the geometrical intersection of a vectorization of the raster and a geometry.';
			
COMMENT ON FUNCTION ST_MapAlgebra(rastbandarg[] , regprocedure , text , text , raster , integer , integer , text[] ) IS 'args: rastbandargset, callbackfunc, pixeltype=NULL, extenttype=INTERSECTION, customextent=NULL, distancex=0, distancey=0, VARIADIC userargs=NULL - Callback function version - Returns a one-band raster given one or more input rasters, band indexes and one user-specified callback function.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , integer[] , regprocedure , text , text , raster , integer , integer , text[] ) IS 'args: rast, nband, callbackfunc, pixeltype=NULL, extenttype=FIRST, customextent=NULL, distancex=0, distancey=0, VARIADIC userargs=NULL - Callback function version - Returns a one-band raster given one or more input rasters, band indexes and one user-specified callback function.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , integer , regprocedure , text , text , raster , integer , integer , text[] ) IS 'args: rast, nband, callbackfunc, pixeltype=NULL, extenttype=FIRST, customextent=NULL, distancex=0, distancey=0, VARIADIC userargs=NULL - Callback function version - Returns a one-band raster given one or more input rasters, band indexes and one user-specified callback function.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , integer , raster , integer , regprocedure , text , text , raster , integer , integer , text[] ) IS 'args: rast1, nband1, rast2, nband2, callbackfunc, pixeltype=NULL, extenttype=INTERSECTION, customextent=NULL, distancex=0, distancey=0, VARIADIC userargs=NULL - Callback function version - Returns a one-band raster given one or more input rasters, band indexes and one user-specified callback function.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster, integer, regprocedure , float8[] , boolean , text , text , raster , text[] ) IS 'args: rast, nband, callbackfunc, mask, weighted, pixeltype=NULL, extenttype=INTERSECTION, customextent=NULL, VARIADIC userargs=NULL - Callback function version - Returns a one-band raster given one or more input rasters, band indexes and one user-specified callback function.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , integer , text , text , double precision ) IS 'args: rast, nband, pixeltype, expression, nodataval=NULL - Expression version - Returns a one-band raster given one or two input rasters, band indexes and one or more user-specified SQL expressions.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , text , text , double precision ) IS 'args: rast, pixeltype, expression, nodataval=NULL - Expression version - Returns a one-band raster given one or two input rasters, band indexes and one or more user-specified SQL expressions.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , integer , raster , integer , text , text , text , text , text , double precision ) IS 'args: rast1, nband1, rast2, nband2, expression, pixeltype=NULL, extenttype=INTERSECTION, nodata1expr=NULL, nodata2expr=NULL, nodatanodataval=NULL - Expression version - Returns a one-band raster given one or two input rasters, band indexes and one or more user-specified SQL expressions.';
			
COMMENT ON FUNCTION ST_MapAlgebra(raster , raster , text , text , text , text , text , double precision ) IS 'args: rast1, rast2, expression, pixeltype=NULL, extenttype=INTERSECTION, nodata1expr=NULL, nodata2expr=NULL, nodatanodataval=NULL - Expression version - Returns a one-band raster given one or two input rasters, band indexes and one or more user-specified SQL expressions.';
			
COMMENT ON FUNCTION ST_MapAlgebraExpr(raster , integer , text , text , double precision ) IS 'args: rast, band, pixeltype, expression, nodataval=NULL - 1 raster band version: Creates a new one band raster formed by applying a valid PostgreSQL algebraic operation on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraExpr(raster , text , text , double precision ) IS 'args: rast, pixeltype, expression, nodataval=NULL - 1 raster band version: Creates a new one band raster formed by applying a valid PostgreSQL algebraic operation on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraExpr(raster , raster , text , text , text , text , text , double precision ) IS 'args: rast1, rast2, expression, pixeltype=same_as_rast1_band, extenttype=INTERSECTION, nodata1expr=NULL, nodata2expr=NULL, nodatanodataval=NULL - 2 raster band version: Creates a new one band raster formed by applying a valid PostgreSQL algebraic operation on the two input raster bands and of pixeltype provided. band 1 of each raster is assumed if no band numbers are specified. The resulting raster will be aligned (scale, skew and pixel corners) on the grid defined by the first raster and have its extent defined by the "extenttype" parameter. Values for "extenttype" can be: INTERSECTION, UNION, FIRST, SECOND.';
			
COMMENT ON FUNCTION ST_MapAlgebraExpr(raster , integer , raster , integer , text , text , text , text , text , double precision ) IS 'args: rast1, band1, rast2, band2, expression, pixeltype=same_as_rast1_band, extenttype=INTERSECTION, nodata1expr=NULL, nodata2expr=NULL, nodatanodataval=NULL - 2 raster band version: Creates a new one band raster formed by applying a valid PostgreSQL algebraic operation on the two input raster bands and of pixeltype provided. band 1 of each raster is assumed if no band numbers are specified. The resulting raster will be aligned (scale, skew and pixel corners) on the grid defined by the first raster and have its extent defined by the "extenttype" parameter. Values for "extenttype" can be: INTERSECTION, UNION, FIRST, SECOND.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, regprocedure) IS 'args: rast, onerasteruserfunc - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, regprocedure, text[]) IS 'args: rast, onerasteruserfunc, VARIADIC args - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, text, regprocedure) IS 'args: rast, pixeltype, onerasteruserfunc - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, text, regprocedure, text[]) IS 'args: rast, pixeltype, onerasteruserfunc, VARIADIC args - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, integer, regprocedure) IS 'args: rast, band, onerasteruserfunc - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, integer, regprocedure, text[]) IS 'args: rast, band, onerasteruserfunc, VARIADIC args - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, integer, text, regprocedure) IS 'args: rast, band, pixeltype, onerasteruserfunc - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, integer, text, regprocedure, text[]) IS 'args: rast, band, pixeltype, onerasteruserfunc, VARIADIC args - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype provided. Band 1 is assumed if no band is specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, raster, regprocedure, text, text, text[]) IS 'args: rast1, rast2, tworastuserfunc, pixeltype=same_as_rast1, extenttype=INTERSECTION, VARIADIC userargs - 2 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the 2 input raster bands and of pixeltype provided. Band 1 is assumed if no band is specified. Extent type defaults to INTERSECTION if not specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFct(raster, integer, raster, integer, regprocedure, text, text, text[]) IS 'args: rast1, band1, rast2, band2, tworastuserfunc, pixeltype=same_as_rast1, extenttype=INTERSECTION, VARIADIC userargs - 2 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the 2 input raster bands and of pixeltype provided. Band 1 is assumed if no band is specified. Extent type defaults to INTERSECTION if not specified.';
			
COMMENT ON FUNCTION ST_MapAlgebraFctNgb(raster , integer , text , integer , integer , regprocedure , text , text[] ) IS 'args: rast, band, pixeltype, ngbwidth, ngbheight, onerastngbuserfunc, nodatamode, VARIADIC args - 1-band version: Map Algebra Nearest Neighbor using user-defined PostgreSQL function. Return a raster which values are the result of a PLPGSQL user function involving a neighborhood of values from the input raster band.';
			
COMMENT ON FUNCTION ST_Reclass(raster , integer , text , text , double precision ) IS 'args: rast, nband, reclassexpr, pixeltype, nodataval=NULL - Creates a new raster composed of band types reclassified from original. The nband is the band to be changed. If nband is not specified assumed to be 1. All other bands are returned unchanged. Use case: convert a 16BUI band to a 8BUI and so forth for simpler rendering as viewable formats.';
			
COMMENT ON FUNCTION ST_Reclass(raster , reclassarg[] ) IS 'args: rast, VARIADIC reclassargset - Creates a new raster composed of band types reclassified from original. The nband is the band to be changed. If nband is not specified assumed to be 1. All other bands are returned unchanged. Use case: convert a 16BUI band to a 8BUI and so forth for simpler rendering as viewable formats.';
			
COMMENT ON FUNCTION ST_Reclass(raster , text , text ) IS 'args: rast, reclassexpr, pixeltype - Creates a new raster composed of band types reclassified from original. The nband is the band to be changed. If nband is not specified assumed to be 1. All other bands are returned unchanged. Use case: convert a 16BUI band to a 8BUI and so forth for simpler rendering as viewable formats.';
			
COMMENT ON FUNCTION ST_Union(setof raster ) IS 'args: rast - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.';
			
COMMENT ON FUNCTION ST_Union(setof raster , unionarg[] ) IS 'args: rast, unionargset - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.';
			
COMMENT ON FUNCTION ST_Union(setof raster, integer) IS 'args: rast, nband - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.';
			
COMMENT ON FUNCTION ST_Union(setof raster, text) IS 'args: rast, uniontype - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.';
			
COMMENT ON FUNCTION ST_Union(setof raster, integer, text) IS 'args: rast, nband, uniontype - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.';
			
COMMENT ON FUNCTION ST_Distinct4ma(float8[][], text, text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the number of unique pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_Distinct4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the number of unique pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_InvDistWeight4ma(double precision[][][], integer[][], text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that interpolates a pixels value from the pixels neighborhood.';
			
COMMENT ON FUNCTION ST_Max4ma(float8[][], text, text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the maximum pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_Max4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the maximum pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_Mean4ma(float8[][], text, text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the mean pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_Mean4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the mean pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_Min4ma(float8[][], text , text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the minimum pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_Min4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the minimum pixel value in a neighborhood.';
			
COMMENT ON FUNCTION ST_MinDist4ma(double precision[][][], integer[][], text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that returns the minimum distance (in number of pixels) between the pixel of interest and a neighboring pixel with value.';
			
COMMENT ON FUNCTION ST_Range4ma(float8[][], text, text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the range of pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_Range4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the range of pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_StdDev4ma(float8[][], text , text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the standard deviation of pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_StdDev4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the standard deviation of pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_Sum4ma(float8[][], text, text[]) IS 'args: matrix, nodatamode, VARIADIC args - Raster processing function that calculates the sum of all pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_Sum4ma(double precision[][][], integer[][] , text[]) IS 'args: value, pos, VARIADIC userargs - Raster processing function that calculates the sum of all pixel values in a neighborhood.';
			
COMMENT ON FUNCTION ST_Aspect(raster , integer , text , text , boolean ) IS 'args: rast, band=1, pixeltype=32BF, units=DEGREES, interpolate_nodata=FALSE - Returns the aspect (in degrees by default) of an elevation raster band. Useful for analyzing terrain.';
			
COMMENT ON FUNCTION ST_Aspect(raster , integer , raster , text , text , boolean ) IS 'args: rast, band, customextent, pixeltype=32BF, units=DEGREES, interpolate_nodata=FALSE - Returns the aspect (in degrees by default) of an elevation raster band. Useful for analyzing terrain.';
			
COMMENT ON FUNCTION ST_HillShade(raster , integer , text , double precision , double precision , double precision , double precision , boolean ) IS 'args: rast, band=1, pixeltype=32BF, azimuth=315, altitude=45, max_bright=255, scale=1.0, interpolate_nodata=FALSE - Returns the hypothetical illumination of an elevation raster band using provided azimuth, altitude, brightness and scale inputs.';
			
COMMENT ON FUNCTION ST_HillShade(raster , integer , raster , text , double precision , double precision , double precision , double precision , boolean ) IS 'args: rast, band, customextent, pixeltype=32BF, azimuth=315, altitude=45, max_bright=255, scale=1.0, interpolate_nodata=FALSE - Returns the hypothetical illumination of an elevation raster band using provided azimuth, altitude, brightness and scale inputs.';
			
COMMENT ON FUNCTION ST_Roughness(raster , integer , raster , text , boolean ) IS 'args: rast, nband, customextent, pixeltype="32BF", interpolate_nodata=FALSE - Returns a raster with the calculated "roughness" of a DEM.';
			
COMMENT ON FUNCTION ST_Slope(raster , integer , text , text , double precision , boolean ) IS 'args: rast, nband=1, pixeltype=32BF, units=DEGREES, scale=1.0, interpolate_nodata=FALSE - Returns the slope (in degrees by default) of an elevation raster band. Useful for analyzing terrain.';
			
COMMENT ON FUNCTION ST_Slope(raster , integer , raster , text , text , double precision , boolean ) IS 'args: rast, nband, customextent, pixeltype=32BF, units=DEGREES, scale=1.0, interpolate_nodata=FALSE - Returns the slope (in degrees by default) of an elevation raster band. Useful for analyzing terrain.';
			
COMMENT ON FUNCTION ST_TPI(raster , integer , raster , text , boolean ) IS 'args: rast, nband, customextent, pixeltype="32BF", interpolate_nodata=FALSE - Returns a raster with the calculated Topographic Position Index.';
			
COMMENT ON FUNCTION ST_TRI(raster , integer , raster , text , boolean ) IS 'args: rast, nband, customextent, pixeltype="32BF", interpolate_nodata=FALSE - Returns a raster with the calculated Terrain Ruggedness Index.';
			
COMMENT ON FUNCTION Box3D(raster ) IS 'args: rast - Returns the box 3d representation of the enclosing box of the raster.';
			
COMMENT ON FUNCTION ST_ConvexHull(raster ) IS 'args: rast - Return the convex hull geometry of the raster including pixel values equal to BandNoDataValue. For regular shaped and non-skewed rasters, this gives the same result as ST_Envelope so only useful for irregularly shaped or skewed rasters.';
			
COMMENT ON FUNCTION ST_DumpAsPolygons(raster , integer , boolean ) IS 'args: rast, band_num=1, exclude_nodata_value=TRUE - Returns a set of geomval (geom,val) rows, from a given raster band. If no band number is specified, band num defaults to 1.';
			
COMMENT ON FUNCTION ST_Envelope(raster ) IS 'args: rast - Returns the polygon representation of the extent of the raster.';
			
COMMENT ON FUNCTION ST_MinConvexHull(raster , integer ) IS 'args: rast, nband=NULL - Return the convex hull geometry of the raster excluding NODATA pixels.';
			
COMMENT ON FUNCTION ST_Polygon(raster , integer ) IS 'args: rast, band_num=1 - Returns a multipolygon geometry formed by the union of pixels that have a pixel value that is not no data value. If no band number is specified, band num defaults to 1.';
			
COMMENT ON FUNCTION ST_Contains(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if no points of raster rastB lie in the exterior of raster rastA and at least one point of the interior of rastB lies in the interior of rastA.';
			
COMMENT ON FUNCTION ST_Contains(raster , raster ) IS 'args: rastA, rastB - Return true if no points of raster rastB lie in the exterior of raster rastA and at least one point of the interior of rastB lies in the interior of rastA.';
			
COMMENT ON FUNCTION ST_ContainsProperly(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if rastB intersects the interior of rastA but not the boundary or exterior of rastA.';
			
COMMENT ON FUNCTION ST_ContainsProperly(raster , raster ) IS 'args: rastA, rastB - Return true if rastB intersects the interior of rastA but not the boundary or exterior of rastA.';
			
COMMENT ON FUNCTION ST_Covers(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if no points of raster rastB lie outside raster rastA.';
			
COMMENT ON FUNCTION ST_Covers(raster , raster ) IS 'args: rastA, rastB - Return true if no points of raster rastB lie outside raster rastA.';
			
COMMENT ON FUNCTION ST_CoveredBy(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if no points of raster rastA lie outside raster rastB.';
			
COMMENT ON FUNCTION ST_CoveredBy(raster , raster ) IS 'args: rastA, rastB - Return true if no points of raster rastA lie outside raster rastB.';
			
COMMENT ON FUNCTION ST_Disjoint(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if raster rastA does not spatially intersect rastB.';
			
COMMENT ON FUNCTION ST_Disjoint(raster , raster ) IS 'args: rastA, rastB - Return true if raster rastA does not spatially intersect rastB.';
			
COMMENT ON FUNCTION ST_Intersects(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if raster rastA spatially intersects raster rastB.';
			
COMMENT ON FUNCTION ST_Intersects(raster , raster ) IS 'args: rastA, rastB - Return true if raster rastA spatially intersects raster rastB.';
			
COMMENT ON FUNCTION ST_Intersects(raster , integer , geometry ) IS 'args: rast, nband, geommin - Return true if raster rastA spatially intersects raster rastB.';
			
COMMENT ON FUNCTION ST_Intersects(raster , geometry , integer ) IS 'args: rast, geommin, nband=NULL - Return true if raster rastA spatially intersects raster rastB.';
			
COMMENT ON FUNCTION ST_Intersects(geometry , raster , integer ) IS 'args: geommin, rast, nband=NULL - Return true if raster rastA spatially intersects raster rastB.';
			
COMMENT ON FUNCTION ST_Overlaps(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if raster rastA and rastB intersect but one does not completely contain the other.';
			
COMMENT ON FUNCTION ST_Overlaps(raster , raster ) IS 'args: rastA, rastB - Return true if raster rastA and rastB intersect but one does not completely contain the other.';
			
COMMENT ON FUNCTION ST_Touches(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if raster rastA and rastB have at least one point in common but their interiors do not intersect.';
			
COMMENT ON FUNCTION ST_Touches(raster , raster ) IS 'args: rastA, rastB - Return true if raster rastA and rastB have at least one point in common but their interiors do not intersect.';
			
COMMENT ON FUNCTION ST_SameAlignment(raster , raster ) IS 'args: rastA, rastB - Returns true if rasters have same skew, scale, spatial ref, and offset (pixels can be put on same grid without cutting into pixels) and false if they dont with notice detailing issue.';
			
COMMENT ON FUNCTION ST_SameAlignment(double precision , double precision , double precision , double precision , double precision , double precision , double precision , double precision , double precision , double precision , double precision , double precision ) IS 'args: ulx1, uly1, scalex1, scaley1, skewx1, skewy1, ulx2, uly2, scalex2, scaley2, skewx2, skewy2 - Returns true if rasters have same skew, scale, spatial ref, and offset (pixels can be put on same grid without cutting into pixels) and false if they dont with notice detailing issue.';
			
COMMENT ON AGGREGATE ST_SameAlignment(raster) IS 'args: rastfield - Returns true if rasters have same skew, scale, spatial ref, and offset (pixels can be put on same grid without cutting into pixels) and false if they dont with notice detailing issue.';
			
COMMENT ON FUNCTION ST_NotSameAlignmentReason(raster , raster ) IS 'args: rastA, rastB - Returns text stating if rasters are aligned and if not aligned, a reason why.';
			
COMMENT ON FUNCTION ST_Within(raster , integer , raster , integer ) IS 'args: rastA, nbandA, rastB, nbandB - Return true if no points of raster rastA lie in the exterior of raster rastB and at least one point of the interior of rastA lies in the interior of rastB.';
			
COMMENT ON FUNCTION ST_Within(raster , raster ) IS 'args: rastA, rastB - Return true if no points of raster rastA lie in the exterior of raster rastB and at least one point of the interior of rastA lies in the interior of rastB.';
			
COMMENT ON FUNCTION ST_DWithin(raster , integer , raster , integer , double precision ) IS 'args: rastA, nbandA, rastB, nbandB, distance_of_srid - Return true if rasters rastA and rastB are within the specified distance of each other.';
			
COMMENT ON FUNCTION ST_DWithin(raster , raster , double precision ) IS 'args: rastA, rastB, distance_of_srid - Return true if rasters rastA and rastB are within the specified distance of each other.';
			
COMMENT ON FUNCTION ST_DFullyWithin(raster , integer , raster , integer , double precision ) IS 'args: rastA, nbandA, rastB, nbandB, distance_of_srid - Return true if rasters rastA and rastB are fully within the specified distance of each other.';
			
COMMENT ON FUNCTION ST_DFullyWithin(raster , raster , double precision ) IS 'args: rastA, rastB, distance_of_srid - Return true if rasters rastA and rastB are fully within the specified distance of each other.';
			
    COMMENT ON TYPE geomval IS 'postgis raster type: A spatial datatype with two fields - geom (holding a geometry object) and val (holding a double precision pixel value from a raster band).';

        
    COMMENT ON TYPE addbandarg IS 'postgis raster type: A composite type used as input into the ST_AddBand function defining the attributes and initial value of the new band.';

        
    COMMENT ON TYPE rastbandarg IS 'postgis raster type: A composite type for use when needing to express a raster and a band index of that raster.';

        
    COMMENT ON TYPE raster IS 'postgis raster type: raster spatial data type.';

        
    COMMENT ON TYPE reclassarg IS 'postgis raster type: A composite type used as input into the ST_Reclass function defining the behavior of reclassification.';

        
    COMMENT ON TYPE summarystats IS 'postgis raster type: A composite type returned by the ST_SummaryStats and ST_SummaryStatsAgg functions.';

        
    COMMENT ON TYPE unionarg IS 'postgis raster type: A composite type used as input into the ST_Union function defining the bands to be processed and behavior of the UNION operation.';

        