PostGIS

ST_3DExtent - Aggregate function that returns the 3D bounding box of geometries.

ST_3DUnion - Perform 3D union.

ST_AsFlatGeobuf - Return a FlatGeobuf representation of a set of rows.

ST_AsGeobuf - Return a Geobuf representation of a set of rows.

ST_AsMVT - Aggregate function returning a MVT representation of a set of rows.

ST_ClusterIntersecting - Aggregate function that clusters the input geometries into connected sets.

ST_ClusterWithin - Aggregate function that clusters the input geometries by separation distance.

ST_Collect - Creates a GeometryCollection or Multi* geometry from a set of geometries.

ST_Extent - Aggregate function that returns the bounding box of geometries.

ST_MakeLine - Creates a LineString from Point, MultiPoint, or LineString geometries.

ST_MemUnion - Aggregate function which unions geometries in a memory-efficent but slower way

ST_Polygonize - Computes a collection of polygons formed from the linework of a set of geometries.

ST_SameAlignment - 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 don’t with notice detailing issue.

ST_Union - Computes a geometry representing the point-set union of the input geometries.

TopoElementArray_Agg - Returns a topoelementarray for a set of element_id, type arrays (topoelements).

ST_ClusterDBSCAN - Window function that returns a cluster id for each input geometry using the DBSCAN algorithm.

ST_ClusterKMeans - Window function that returns a cluster id for each input geometry using the K-means algorithm.

ST_3DArea - Computes area of 3D surface geometries. Will return 0 for solids. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 8.1, 10.5

ST_3DDWithin - Tests if two 3D geometries are within a given 3D distance This method implements the SQL/MM specification. SQL-MM ?

ST_3DDifference - Perform 3D difference This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1

ST_3DDistance - Returns the 3D cartesian minimum distance (based on spatial ref) between two geometries in projected units. This method implements the SQL/MM specification. SQL-MM ISO/IEC 13249-3

ST_3DIntersection - Perform 3D intersection This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1

ST_3DIntersects - Tests if two geometries spatially intersect in 3D - only for points, linestrings, polygons, polyhedral surface (area). This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1

ST_3DLength - Returns the 3D length of a linear geometry. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 7.1, 10.3

ST_3DPerimeter - Returns the 3D perimeter of a polygonal geometry. This method implements the SQL/MM specification. SQL-MM ISO/IEC 13249-3: 8.1, 10.5

ST_3DUnion - Perform 3D union. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1

ST_AddEdgeModFace - Add a new edge and, if in doing so it splits a face, modify the original face and add a new face. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.13

ST_AddEdgeNewFaces - Add a new edge and, if in doing so it splits a face, delete the original face and replace it with two new faces. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.12

ST_AddIsoEdge - Adds an isolated edge defined by geometry alinestring to a topology connecting two existing isolated nodes anode and anothernode and returns the edge id of the new edge. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.4

ST_AddIsoNode - Adds an isolated node to a face in a topology and returns the nodeid of the new node. If face is null, the node is still created. This method implements the SQL/MM specification. SQL-MM: Topo-Net Routines: X+1.3.1

ST_Area - Returns the area of a polygonal geometry. This method implements the SQL/MM specification. SQL-MM 3: 8.1.2, 9.5.3

ST_AsBinary - Return the OGC/ISO Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data. This method implements the SQL/MM specification. SQL-MM 3: 5.1.37

ST_AsGML - Return the geometry as a GML version 2 or 3 element. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 17.2

ST_AsText - Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata. This method implements the SQL/MM specification. SQL-MM 3: 5.1.25

ST_Boundary - Returns the boundary of a geometry. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1.17

ST_Buffer - Computes a geometry covering all points within a given distance from a geometry. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1.30

ST_Centroid - Returns the geometric center of a geometry. This method implements the SQL/MM specification. SQL-MM 3: 8.1.4, 9.5.5

ST_ChangeEdgeGeom - Changes the shape of an edge without affecting the topology structure. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details X.3.6

ST_Contains - Tests if no points of B lie in the exterior of A, and A and B have at least one interior point in common. This method implements the SQL/MM specification. SQL-MM 3: 5.1.31

ST_ConvexHull - Computes the convex hull of a geometry. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1.16

ST_CoordDim - Return the coordinate dimension of a geometry. This method implements the SQL/MM specification. SQL-MM 3: 5.1.3

ST_CreateTopoGeo - Adds a collection of geometries to a given empty topology and returns a message detailing success. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details — X.3.18

ST_Crosses - Tests if two geometries have some, but not all, interior points in common. This method implements the SQL/MM specification. SQL-MM 3: 5.1.29

ST_CurveToLine - Converts a geometry containing curves to a linear geometry. This method implements the SQL/MM specification. SQL-MM 3: 7.1.7

ST_Difference - Computes a geometry representing the part of geometry A that does not intersect geometry B. This method implements the SQL/MM specification. SQL-MM 3: 5.1.20

ST_Dimension - Returns the topological dimension of a geometry. This method implements the SQL/MM specification. SQL-MM 3: 5.1.2

ST_Disjoint - Tests if two geometries are disjoint (they have no point in common). This method implements the SQL/MM specification. SQL-MM 3: 5.1.26

ST_Distance - Returns the distance between two geometry or geography values. This method implements the SQL/MM specification. SQL-MM 3: 5.1.23

ST_EndPoint - Returns the last point of a LineString or CircularLineString. This method implements the SQL/MM specification. SQL-MM 3: 7.1.4

ST_Envelope - Returns a geometry representing the bounding box of a geometry. This method implements the SQL/MM specification. SQL-MM 3: 5.1.19

ST_Equals - Tests if two geometries include the same set of points. This method implements the SQL/MM specification. SQL-MM 3: 5.1.24

ST_ExteriorRing - Returns a LineString representing the exterior ring of a Polygon. This method implements the SQL/MM specification. SQL-MM 3: 8.2.3, 8.3.3

ST_GMLToSQL - Return a specified ST_Geometry value from GML representation. This is an alias name for ST_GeomFromGML This method implements the SQL/MM specification. SQL-MM 3: 5.1.50 (except for curves support).

ST_GeomCollFromText - Makes a collection Geometry from collection WKT with the given SRID. If SRID is not given, it defaults to 0. This method implements the SQL/MM specification.

ST_GeomFromText - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This method implements the SQL/MM specification. SQL-MM 3: 5.1.40

ST_GeomFromWKB - Creates a geometry instance from a Well-Known Binary geometry representation (WKB) and optional SRID. This method implements the SQL/MM specification. SQL-MM 3: 5.1.41

ST_GeometryFromText - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This is an alias name for ST_GeomFromText This method implements the SQL/MM specification. SQL-MM 3: 5.1.40

ST_GeometryN - Return an element of a geometry collection. This method implements the SQL/MM specification. SQL-MM 3: 9.1.5

ST_GeometryType - Returns the SQL-MM type of a geometry as text. This method implements the SQL/MM specification. SQL-MM 3: 5.1.4

ST_GetFaceEdges - Returns a set of ordered edges that bound aface. This method implements the SQL/MM specification. SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.5

ST_GetFaceGeometry - Returns the polygon in the given topology with the specified face id. This method implements the SQL/MM specification. SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.16

ST_InitTopoGeo - Creates a new topology schema and registers this new schema in the topology.topology table and details summary of process. This method implements the SQL/MM specification. SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.17

ST_InteriorRingN - Returns the Nth interior ring (hole) of a Polygon. This method implements the SQL/MM specification. SQL-MM 3: 8.2.6, 8.3.5

ST_Intersection - Computes a geometry representing the shared portion of geometries A and B. This method implements the SQL/MM specification. SQL-MM 3: 5.1.18

ST_Intersects - Tests if two geometries intersect (they have at least one point in common). This method implements the SQL/MM specification. SQL-MM 3: 5.1.27

ST_IsClosed - Tests if a LineStrings’s start and end points are coincident. For a PolyhedralSurface tests if it is closed (volumetric). This method implements the SQL/MM specification. SQL-MM 3: 7.1.5, 9.3.3

ST_IsEmpty - Tests if a geometry is empty. This method implements the SQL/MM specification. SQL-MM 3: 5.1.7

ST_IsRing - Tests if a LineString is closed and simple. This method implements the SQL/MM specification. SQL-MM 3: 7.1.6

ST_IsSimple - Tests if a geometry has no points of self-intersection or self-tangency. This method implements the SQL/MM specification. SQL-MM 3: 5.1.8

ST_IsValid - Tests if a geometry is well-formed in 2D. This method implements the SQL/MM specification. SQL-MM 3: 5.1.9

ST_Length - Returns the 2D length of a linear geometry. This method implements the SQL/MM specification. SQL-MM 3: 7.1.2, 9.3.4

ST_LineFromText - Makes a Geometry from WKT representation with the given SRID. If SRID is not given, it defaults to

ST_LineFromWKB - Makes a LINESTRING from WKB with the given SRID This method implements the SQL/MM specification. SQL-MM 3: 7.2.9

ST_LinestringFromWKB - Makes a geometry from WKB with the given SRID. This method implements the SQL/MM specification. SQL-MM 3: 7.2.9

ST_LocateAlong - Returns the point(s) on a geometry that match a measure value. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1.13

ST_LocateBetween - Returns the portions of a geometry that match a measure range. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 5.1

ST_M - Returns the M coordinate of a Point. This method implements the SQL/MM specification.

ST_MLineFromText - Return a specified ST_MultiLineString value from WKT representation. This method implements the SQL/MM specification.SQL-MM 3: 9.4.4

ST_MPointFromText - Makes a Geometry from WKT with the given SRID. If SRID is not given, it defaults to 0. This method implements the SQL/MM specification. SQL-MM 3: 9.2.4

ST_MPolyFromText - Makes a MultiPolygon Geometry from WKT with the given SRID. If SRID is not given, it defaults to 0. This method implements the SQL/MM specification. SQL-MM 3: 9.6.4

ST_ModEdgeHeal - Heals two edges by deleting the node connecting them, modifying the first edgeand deleting the second edge. Returns the id of the deleted node. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.9

ST_ModEdgeSplit - Split an edge by creating a new node along an existing edge, modifying the original edge and adding a new edge. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.9

ST_MoveIsoNode - Moves an isolated node in a topology from one point to another. If new apoint geometry exists as a node an error is thrown. Returns description of move. This method implements the SQL/MM specification. SQL-MM: Topo-Net Routines: X.3.2

ST_NewEdgeHeal - Heals two edges by deleting the node connecting them, deleting both edges,and replacing them with an edge whose direction is the same as the firstedge provided. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.9

ST_NewEdgesSplit - Split an edge by creating a new node along an existing edge, deleting the original edge and replacing it with two new edges. Returns the id of the new node created that joins the new edges. This method implements the SQL/MM specification. SQL-MM: Topo-Net Routines: X.3.8

ST_NumGeometries - Returns the number of elements in a geometry collection. This method implements the SQL/MM specification. SQL-MM 3: 9.1.4

ST_NumInteriorRings - Returns the number of interior rings (holes) of a Polygon. This method implements the SQL/MM specification. SQL-MM 3: 8.2.5

ST_NumPatches - Return the number of faces on a Polyhedral Surface. Will return null for non-polyhedral geometries. This method implements the SQL/MM specification. SQL-MM ISO/IEC 13249-3: 8.5

ST_NumPoints - Returns the number of points in a LineString or CircularString. This method implements the SQL/MM specification. SQL-MM 3: 7.2.4

ST_OrderingEquals - Tests if two geometries represent the same geometry and have points in the same directional order. This method implements the SQL/MM specification. SQL-MM 3: 5.1.43

ST_Overlaps - Tests if two geometries intersect and have the same dimension, but are not completely contained by each other. This method implements the SQL/MM specification. SQL-MM 3: 5.1.32

ST_PatchN - Returns the Nth geometry (face) of a PolyhedralSurface. This method implements the SQL/MM specification. SQL-MM ISO/IEC 13249-3: 8.5

ST_Perimeter - Returns the length of the boundary of a polygonal geometry or geography. This method implements the SQL/MM specification. SQL-MM 3: 8.1.3, 9.5.4

ST_Point - Creates a Point with X, Y and SRID values. This method implements the SQL/MM specification. SQL-MM 3: 6.1.2

ST_PointFromText - Makes a point Geometry from WKT with the given SRID. If SRID is not given, it defaults to unknown. This method implements the SQL/MM specification. SQL-MM 3: 6.1.8

ST_PointFromWKB - Makes a geometry from WKB with the given SRID This method implements the SQL/MM specification. SQL-MM 3: 6.1.9

ST_PointN - Returns the Nth point in the first LineString or circular LineString in a geometry. This method implements the SQL/MM specification. SQL-MM 3: 7.2.5, 7.3.5

ST_PointOnSurface - Computes a point guaranteed to lie in a polygon, or on a geometry. This method implements the SQL/MM specification. SQL-MM 3: 8.1.5, 9.5.6. The specifications define ST_PointOnSurface for surface geometries only. PostGIS extends the function to support all common geometry types. Other databases (Oracle, DB2, ArcSDE) seem to support this function only for surfaces. SQL Server 2008 supports all common geometry types.

ST_Polygon - Creates a Polygon from a LineString with a specified SRID. This method implements the SQL/MM specification. SQL-MM 3: 8.3.2

ST_PolygonFromText - Makes a Geometry from WKT with the given SRID. If SRID is not given, it defaults to 0. This method implements the SQL/MM specification. SQL-MM 3: 8.3.6

ST_Relate - Tests if two geometries have a topological relationship matching an Intersection Matrix pattern, or computes their Intersection Matrix This method implements the SQL/MM specification. SQL-MM 3: 5.1.25

ST_RemEdgeModFace - Removes an edge and, if the removed edge separated two faces,delete one of the them and modify the other to take the space of both. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.15

ST_RemEdgeNewFace - Removes an edge and, if the removed edge separated two faces,delete the original faces and replace them with a new face. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.14

ST_RemoveIsoEdge - Removes an isolated edge and returns description of action. If the edge is not isolated, then an exception is thrown. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X+1.3.3

ST_RemoveIsoNode - Removes an isolated node and returns description of action. If the node is not isolated (is start or end of an edge), then an exception is thrown. This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X+1.3.3

ST_SRID - Returns the spatial reference identifier for a geometry. This method implements the SQL/MM specification. SQL-MM 3: 5.1.5

ST_StartPoint - Returns the first point of a LineString. This method implements the SQL/MM specification. SQL-MM 3: 7.1.3

ST_SymDifference - Computes a geometry representing the portions of geometries A and B that do not intersect. This method implements the SQL/MM specification. SQL-MM 3: 5.1.21

ST_Touches - Tests if two geometries have at least one point in common, but their interiors do not intersect. This method implements the SQL/MM specification. SQL-MM 3: 5.1.28

ST_Transform - Return a new geometry with coordinates transformed to a different spatial reference system. This method implements the SQL/MM specification. SQL-MM 3: 5.1.6

ST_Union - Computes a geometry representing the point-set union of the input geometries. This method implements the SQL/MM specification. SQL-MM 3: 5.1.19 the z-index (elevation) when polygons are involved.

ST_Volume - Computes the volume of a 3D solid. If applied to surface (even closed) geometries will return 0. This method implements the SQL/MM specification. SQL-MM IEC 13249-3: 9.1 (same as ST_3DVolume)

ST_WKBToSQL - Return a specified ST_Geometry value from Well-Known Binary representation (WKB). This is an alias name for ST_GeomFromWKB that takes no srid This method implements the SQL/MM specification. SQL-MM 3: 5.1.36

ST_WKTToSQL - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This is an alias name for ST_GeomFromText This method implements the SQL/MM specification. SQL-MM 3: 5.1.34

ST_Within - Tests if no points of A lie in the exterior of B, and A and B have at least one interior point in common. This method implements the SQL/MM specification. SQL-MM 3: 5.1.30

ST_X - Returns the X coordinate of a Point. This method implements the SQL/MM specification. SQL-MM 3: 6.1.3

ST_Y - Returns the Y coordinate of a Point. This method implements the SQL/MM specification. SQL-MM 3: 6.1.4

ST_Z - Returns the Z coordinate of a Point. This method implements the SQL/MM specification.

TG_ST_SRID - Returns the spatial reference identifier for a topogeometry. This method implements the SQL/MM specification. SQL-MM 3: 14.1.5

ST_Area - Returns the area of a polygonal geometry.

ST_AsBinary - Return the OGC/ISO Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

ST_AsEWKT - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

ST_AsGML - Return the geometry as a GML version 2 or 3 element.

ST_AsGeoJSON - Return a geometry as a GeoJSON element.

ST_AsKML - Return the geometry as a KML element.

ST_AsSVG - Returns SVG path data for a geometry.

ST_AsText - Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata.

ST_Azimuth - Returns the north-based azimuth of a line between two points.

ST_Buffer - Computes a geometry covering all points within a given distance from a geometry.

ST_Centroid - Returns the geometric center of a geometry.

ST_CoveredBy - Tests if no point in A is outside B

ST_Covers - Tests if no point in B is outside A

ST_DWithin - Tests if two geometries are within a given distance

ST_Distance - Returns the distance between two geometry or geography values.

ST_GeogFromText - Return a specified geography value from Well-Known Text representation or extended (WKT).

ST_GeogFromWKB - Creates a geography instance from a Well-Known Binary geometry representation (WKB) or extended Well Known Binary (EWKB).

ST_GeographyFromText - Return a specified geography value from Well-Known Text representation or extended (WKT).

= - Returns TRUE if the coordinates and coordinate order geometry/geography A are the same as the coordinates and coordinate order of geometry/geography B.

ST_Intersection - Computes a geometry representing the shared portion of geometries A and B.

ST_Intersects - Tests if two geometries intersect (they have at least one point in common).

ST_Length - Returns the 2D length of a linear geometry.

ST_Perimeter - Returns the length of the boundary of a polygonal geometry or geography.

ST_Project - Returns a point projected from a start point by a distance and bearing (azimuth).

ST_Segmentize - Return a modified geometry/geography having no segment longer than the given distance.

ST_Summary - Returns a text summary of the contents of a geometry.

<→ - Returns the 2D distance between A and B.

&& - Returns TRUE if A’s 2D bounding box intersects B’s 2D bounding box.

Box3D - Returns the box 3d representation of the enclosing box of the raster.

@ - Returns TRUE if A’s bounding box is contained by B’s. Uses double precision bounding box.

~ - Returns TRUE if A’s bounding box is contains B’s. Uses double precision bounding box.

= - Returns TRUE if A’s bounding box is the same as B’s. Uses double precision bounding box.

&& - Returns TRUE if A’s bounding box intersects B’s bounding box.

&< - Returns TRUE if A’s bounding box is to the left of B’s.

&> - Returns TRUE if A’s bounding box is to the right of B’s.

~= - Returns TRUE if A’s bounding box is the same as B’s.

ST_Retile - Return a set of configured tiles from an arbitrarily tiled raster coverage.

ST_AddBand - 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.

ST_AsBinary/ST_AsWKB - Return the Well-Known Binary (WKB) representation of the raster.

ST_AsGDALRaster - 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.

ST_AsHexWKB - Return the Well-Known Binary (WKB) in Hex representation of the raster.

ST_AsJPEG - 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.

ST_AsPNG - 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.

ST_AsRaster - Converts a PostGIS geometry to a PostGIS raster.

ST_AsTIFF - 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.

ST_Aspect - Returns the aspect (in degrees by default) of an elevation raster band. Useful for analyzing terrain.

ST_Band - Returns one or more bands of an existing raster as a new raster. Useful for building new rasters from existing rasters.

ST_BandFileSize - Returns the file size of a band stored in file system. If no bandnum specified, 1 is assumed.

ST_BandFileTimestamp - Returns the file timestamp of a band stored in file system. If no bandnum specified, 1 is assumed.

ST_BandIsNoData - Returns true if the band is filled with only nodata values.

ST_BandMetaData - Returns basic meta data for a specific raster band. band num 1 is assumed if none-specified.

ST_BandNoDataValue - Returns the value in a given band that represents no data. If no band num 1 is assumed.

ST_BandPath - Returns system file path to a band stored in file system. If no bandnum specified, 1 is assumed.

ST_BandPixelType - Returns the type of pixel for given band. If no bandnum specified, 1 is assumed.

ST_Clip - Returns the raster clipped by the input geometry. If band number not is specified, all bands are processed. If crop is not specified or TRUE, the output raster is cropped.

ST_ColorMap - 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.

ST_Contains - 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.

ST_ContainsProperly - Return true if rastB intersects the interior of rastA but not the boundary or exterior of rastA.

ST_Contour - Generates a set of vector contours from the provided raster band, using the GDAL contouring algorithm.

ST_ConvexHull - 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.

ST_Count - 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.

ST_CountAgg - 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.

ST_CoveredBy - Return true if no points of raster rastA lie outside raster rastB.

ST_Covers - Return true if no points of raster rastB lie outside raster rastA.

ST_DFullyWithin - Return true if rasters rastA and rastB are fully within the specified distance of each other.

ST_DWithin - Return true if rasters rastA and rastB are within the specified distance of each other.

ST_Disjoint - Return true if raster rastA does not spatially intersect rastB.

ST_DumpAsPolygons - Returns a set of geomval (geom,val) rows, from a given raster band. If no band number is specified, band num defaults to 1.

ST_DumpValues - Get the values of the specified band as a 2-dimension array.

ST_Envelope - Returns the polygon representation of the extent of the raster.

ST_FromGDALRaster - Returns a raster from a supported GDAL raster file.

ST_GeoReference - Returns the georeference meta data in GDAL or ESRI format as commonly seen in a world file. Default is GDAL.

ST_Grayscale - Creates a new one-8BUI band raster from the source raster and specified bands representing Red, Green and Blue

ST_HasNoBand - Returns true if there is no band with given band number. If no band number is specified, then band number 1 is assumed.

ST_Height - Returns the height of the raster in pixels.

ST_HillShade - Returns the hypothetical illumination of an elevation raster band using provided azimuth, altitude, brightness and scale inputs.

ST_Histogram - Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.

ST_InterpolateRaster - 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.

ST_Intersection - 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.

ST_Intersects - Return true if raster rastA spatially intersects raster rastB.

ST_IsEmpty - Returns true if the raster is empty (width = 0 and height = 0). Otherwise, returns false.

ST_MakeEmptyCoverage - Cover georeferenced area with a grid of empty raster tiles.

ST_MakeEmptyRaster - 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).

ST_MapAlgebra (callback function version)

ST_MapAlgebraExpr - 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.

ST_MapAlgebraExpr - 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.

ST_MapAlgebraFct - 1 band version - Creates a new one band raster formed by applying a valid PostgreSQL function on the input raster band and of pixeltype prodived. Band 1 is assumed if no band is specified.

ST_MapAlgebraFct - 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 prodived. Band 1 is assumed if no band is specified. Extent type defaults to INTERSECTION if not specified.

ST_MapAlgebraFctNgb - 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.

ST_MapAlgebra (expression version) - Expression version - Returns a one-band raster given one or two input rasters, band indexes and one or more user-specified SQL expressions.

ST_MemSize - Returns the amount of space (in bytes) the raster takes.

ST_MetaData - Returns basic meta data about a raster object such as pixel size, rotation (skew), upper, lower left, etc.

ST_MinConvexHull - Return the convex hull geometry of the raster excluding NODATA pixels.

ST_NearestValue - Returns the nearest non-NODATA value of a given band’s pixel specified by a columnx and rowy or a geometric point expressed in the same spatial reference coordinate system as the raster.

ST_Neighborhood - Returns a 2-D double precision array of the non-NODATA values around a given band’s pixel specified by either a columnX and rowY or a geometric point expressed in the same spatial reference coordinate system as the raster.

ST_NotSameAlignmentReason - Returns text stating if rasters are aligned and if not aligned, a reason why.

ST_NumBands - Returns the number of bands in the raster object.

ST_Overlaps - Return true if raster rastA and rastB intersect but one does not completely contain the other.

ST_PixelAsCentroid - Returns the centroid (point geometry) of the area represented by a pixel.

ST_PixelAsCentroids - 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.

ST_PixelAsPoint - Returns a point geometry of the pixel’s upper-left corner.

ST_PixelAsPoints - 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 pixel’s upper-left corner.

ST_PixelAsPolygon - Returns the polygon geometry that bounds the pixel for a particular row and column.

ST_PixelAsPolygons - 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.

ST_PixelHeight - Returns the pixel height in geometric units of the spatial reference system.

ST_PixelOfValue - Get the columnx, rowy coordinates of the pixel whose value equals the search value.

ST_PixelWidth - Returns the pixel width in geometric units of the spatial reference system.

ST_Polygon - 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.

ST_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 raster’s 25%, 50%, 75% percentile.

ST_RastFromHexWKB - Return a raster value from a Hex representation of Well-Known Binary (WKB) raster.

ST_RastFromWKB - Return a raster value from a Well-Known Binary (WKB) raster.

ST_RasterToWorldCoord - Returns the raster’s upper left corner as geometric X and Y (longitude and latitude) given a column and row. Column and row starts at 1.

ST_RasterToWorldCoordX - Returns the geometric X coordinate upper left of a raster, column and row. Numbering of columns and rows starts at 1.

ST_RasterToWorldCoordY - Returns the geometric Y coordinate upper left corner of a raster, column and row. Numbering of columns and rows starts at 1.

ST_Reclass - 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.

ST_Resample - 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.

ST_Rescale - 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 or Lanczos resampling algorithm. Default is NearestNeighbor.

ST_Resize - Resize a raster to a new width/height

ST_Reskew - 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.

ST_Rotation - Returns the rotation of the raster in radian.

ST_Roughness - Returns a raster with the calculated "roughness" of a DEM.

ST_SRID - Returns the spatial reference identifier of the raster as defined in spatial_ref_sys table.

ST_SameAlignment - 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 don’t with notice detailing issue.

ST_ScaleX - Returns the X component of the pixel width in units of coordinate reference system.

ST_ScaleY - Returns the Y component of the pixel height in units of coordinate reference system.

ST_SetBandIndex - Update the external band number of an out-db band

ST_SetBandIsNoData - Sets the isnodata flag of the band to TRUE.

ST_SetBandNoDataValue - 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.

ST_SetBandPath - Update the external path and band number of an out-db band

ST_SetGeoReference - 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.

ST_SetM - 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.

ST_SetRotation - Set the rotation of the raster in radian.

ST_SetSRID - Sets the SRID of a raster to a particular integer srid defined in the spatial_ref_sys table.

ST_SetScale - Sets the X and Y size of pixels in units of coordinate reference system. Number units/pixel width/height.

ST_SetSkew - Sets the georeference X and Y skew (or rotation parameter). If only one is passed in, sets X and Y to the same value.

ST_SetUpperLeft - Sets the value of the upper left corner of the pixel of the raster to projected X and Y coordinates.

ST_SetValue - 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.

ST_SetValues - Returns modified raster resulting from setting the values of a given band.

ST_SetZ - 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.

ST_SkewX - Returns the georeference X skew (or rotation parameter).

ST_SkewY - Returns the georeference Y skew (or rotation parameter).

ST_Slope - Returns the slope (in degrees by default) of an elevation raster band. Useful for analyzing terrain.

ST_SnapToGrid - 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.

ST_Summary - Returns a text summary of the contents of the raster.

ST_SummaryStats - 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.

ST_SummaryStatsAgg - 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.

ST_TPI - Returns a raster with the calculated Topographic Position Index.

ST_TRI - Returns a raster with the calculated Terrain Ruggedness Index.

ST_Tile - Returns a set of rasters resulting from the split of the input raster based upon the desired dimensions of the output rasters.

ST_Touches - Return true if raster rastA and rastB have at least one point in common but their interiors do not intersect.

ST_Transform - 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.

ST_Union - Returns the union of a set of raster tiles into a single raster composed of 1 or more bands.

ST_UpperLeftX - Returns the upper left X coordinate of raster in projected spatial ref.

ST_UpperLeftY - Returns the upper left Y coordinate of raster in projected spatial ref.

ST_Value - 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.

ST_ValueCount - 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.

ST_Width - Returns the width of the raster in pixels.

ST_Within - 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.

ST_WorldToRasterCoord - 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.

ST_WorldToRasterCoordX - 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.

ST_WorldToRasterCoordY - 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.

UpdateRasterSRID - Change the SRID of all rasters in the user-specified column and table.

ST_DumpAsPolygons - Returns a set of geomval (geom,val) rows, from a given raster band. If no band number is specified, band num defaults to 1.

ST_Intersection - 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.

ST_Dump - Returns a set of geometry_dump rows for the components of a geometry.

ST_DumpPoints - Returns a set of geometry_dump rows for the coordinates in a geometry.

ST_DumpRings - Returns a set of geometry_dump rows for the exterior and interior rings of a Polygon.

ST_DumpSegments - Returns a set of geometry_dump rows for the segments in a geometry.

Box2D - Returns a BOX2D representing the 2D extent of a geometry.

Box3D - Returns a BOX3D representing the 3D extent of a geometry.

Box3D - Returns the box 3d representation of the enclosing box of the raster.

ST_3DExtent - Aggregate function that returns the 3D bounding box of geometries.

ST_3DMakeBox - Creates a BOX3D defined by two 3D point geometries.

ST_AsMVTGeom - Transforms a geometry into the coordinate space of a MVT tile.

ST_AsTWKB - Returns the geometry as TWKB, aka "Tiny Well-Known Binary"

ST_Box2dFromGeoHash - Return a BOX2D from a GeoHash string.

ST_ClipByBox2D - Computes the portion of a geometry falling within a rectangle.

ST_EstimatedExtent - Returns the estimated extent of a spatial table.

ST_Expand - Returns a bounding box expanded from another bounding box or a geometry.

ST_Extent - Aggregate function that returns the bounding box of geometries.

ST_MakeBox2D - Creates a BOX2D defined by two 2D point geometries.

ST_XMax - Returns the X maxima of a 2D or 3D bounding box or a geometry.

ST_XMin - Returns the X minima of a 2D or 3D bounding box or a geometry.

ST_YMax - Returns the Y maxima of a 2D or 3D bounding box or a geometry.

ST_YMin - Returns the Y minima of a 2D or 3D bounding box or a geometry.

ST_ZMax - Returns the Z maxima of a 2D or 3D bounding box or a geometry.

ST_ZMin - Returns the Z minima of a 2D or 3D bounding box or a geometry.

RemoveUnusedPrimitives - Removes topology primitives which not needed to define existing TopoGeometry objects.

ValidateTopology - Returns a set of validatetopology_returntype objects detailing issues with topology.

~(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains another 2D float precision bounding box (BOX2DF).

~(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains a geometry’s 2D bonding box.

~(geometry,box2df) - Returns TRUE if a geometry’s 2D bonding box contains a 2D float precision bounding box (GIDX).

@(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into another 2D float precision bounding box.

@(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into a geometry’s 2D bounding box.

@(geometry,box2df) - Returns TRUE if a geometry’s 2D bounding box is contained into a 2D float precision bounding box (BOX2DF).

&&(box2df,box2df) - Returns TRUE if two 2D float precision bounding boxes (BOX2DF) intersect each other.

&&(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) intersects a geometry’s (cached) 2D bounding box.

&&(geometry,box2df) - Returns TRUE if a geometry’s (cached) 2D bounding box intersects a 2D float precision bounding box (BOX2DF).

AddGeometryColumn - Adds a geometry column to an existing table.

Box3D - Returns a BOX3D representing the 3D extent of a geometry.

DropGeometryColumn - Removes a geometry column from a spatial table.

GeometryType - Returns the type of a geometry as text.

ST_3DArea - Computes area of 3D surface geometries. Will return 0 for solids.

ST_3DClosestPoint - Returns the 3D point on g1 that is closest to g2. This is the first point of the 3D shortest line.

ST_3DConvexHull - Computes the 3D convex hull of a geometry.

ST_3DDFullyWithin - Tests if two 3D geometries are entirely within a given 3D distance

ST_3DDWithin - Tests if two 3D geometries are within a given 3D distance

ST_3DDifference - Perform 3D difference

ST_3DDistance - Returns the 3D cartesian minimum distance (based on spatial ref) between two geometries in projected units.

ST_3DExtent - Aggregate function that returns the 3D bounding box of geometries.

ST_3DIntersection - Perform 3D intersection

ST_3DIntersects - Tests if two geometries spatially intersect in 3D - only for points, linestrings, polygons, polyhedral surface (area).

ST_3DLength - Returns the 3D length of a linear geometry.

ST_3DLineInterpolatePoint - Returns a point interpolated along a 3D line at a fractional location.

ST_3DLongestLine - Returns the 3D longest line between two geometries

ST_3DMaxDistance - Returns the 3D cartesian maximum distance (based on spatial ref) between two geometries in projected units.

ST_3DPerimeter - Returns the 3D perimeter of a polygonal geometry.

ST_3DShortestLine - Returns the 3D shortest line between two geometries

ST_3DUnion - Perform 3D union.

ST_AddMeasure - Interpolates measures along a linear geometry.

ST_AddPoint - Add a point to a LineString.

ST_Affine - Apply a 3D affine transformation to a geometry.

ST_ApproximateMedialAxis - Compute the approximate medial axis of an areal geometry.

ST_AsBinary - Return the OGC/ISO Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

ST_AsEWKB - Return the Extended Well-Known Binary (EWKB) representation of the geometry with SRID meta data.

ST_AsEWKT - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

ST_AsGML - Return the geometry as a GML version 2 or 3 element.

ST_AsGeoJSON - Return a geometry as a GeoJSON element.

ST_AsHEXEWKB - Returns a Geometry in HEXEWKB format (as text) using either little-endian (NDR) or big-endian (XDR) encoding.

ST_AsKML - Return the geometry as a KML element.

ST_AsX3D - Returns a Geometry in X3D xml node element format: ISO-IEC-19776-1.2-X3DEncodings-XML

ST_Boundary - Returns the boundary of a geometry.

ST_BoundingDiagonal - Returns the diagonal of a geometry’s bounding box.

ST_CPAWithin - Tests if the closest point of approach of two trajectoriesis within the specified distance.

ST_ClosestPointOfApproach - Returns a measure at the closest point of approach of two trajectories.

ST_Collect - Creates a GeometryCollection or Multi* geometry from a set of geometries.

ST_ConstrainedDelaunayTriangles

ST_ConvexHull - Computes the convex hull of a geometry.

ST_CoordDim - Return the coordinate dimension of a geometry.

ST_CurveToLine - Converts a geometry containing curves to a linear geometry.

ST_DelaunayTriangles - Returns the Delaunay triangulation of the vertices of a geometry.

ST_Difference - Computes a geometry representing the part of geometry A that does not intersect geometry B.

ST_DistanceCPA - Returns the distance between the closest point of approach of two trajectories.

ST_Dump - Returns a set of geometry_dump rows for the components of a geometry.

ST_DumpPoints - Returns a set of geometry_dump rows for the coordinates in a geometry.

ST_DumpRings - Returns a set of geometry_dump rows for the exterior and interior rings of a Polygon.

ST_DumpSegments - Returns a set of geometry_dump rows for the segments in a geometry.

ST_EndPoint - Returns the last point of a LineString or CircularLineString.

ST_ExteriorRing - Returns a LineString representing the exterior ring of a Polygon.

ST_Extrude - Extrude a surface to a related volume

ST_FlipCoordinates - Returns a version of a geometry with X and Y axis flipped.

ST_Force2D - Force the geometries into a "2-dimensional mode".

ST_ForceCurve - Upcast a geometry into its curved type, if applicable.

ST_ForceLHR - Force LHR orientation

ST_ForcePolygonCCW - Orients all exterior rings counter-clockwise and all interior rings clockwise.

ST_ForcePolygonCW - Orients all exterior rings clockwise and all interior rings counter-clockwise.

ST_ForceRHR - Force the orientation of the vertices in a polygon to follow the Right-Hand-Rule.

ST_ForceSFS - Force the geometries to use SFS 1.1 geometry types only.

ST_Force_3D - Force the geometries into XYZ mode. This is an alias for ST_Force3DZ.

ST_Force_3DZ - Force the geometries into XYZ mode.

ST_Force_4D - Force the geometries into XYZM mode.

ST_Force_Collection - Convert the geometry into a GEOMETRYCOLLECTION.

ST_GeomFromEWKB - Return a specified ST_Geometry value from Extended Well-Known Binary representation (EWKB).

ST_GeomFromEWKT - Return a specified ST_Geometry value from Extended Well-Known Text representation (EWKT).

ST_GeomFromGML - Takes as input GML representation of geometry and outputs a PostGIS geometry object

ST_GeomFromGeoJSON - Takes as input a geojson representation of a geometry and outputs a PostGIS geometry object

ST_GeomFromKML - Takes as input KML representation of geometry and outputs a PostGIS geometry object

ST_GeometricMedian - Returns the geometric median of a MultiPoint.

ST_GeometryN - Return an element of a geometry collection.

ST_GeometryType - Returns the SQL-MM type of a geometry as text.

ST_HasArc - Tests if a geometry contains a circular arc

ST_InteriorRingN - Returns the Nth interior ring (hole) of a Polygon.

ST_InterpolatePoint - Returns the interpolated measure of a geometry closest to a point.

ST_Intersection - Computes a geometry representing the shared portion of geometries A and B.

ST_IsClosed - Tests if a LineStrings’s start and end points are coincident. For a PolyhedralSurface tests if it is closed (volumetric).

ST_IsCollection - Tests if a geometry is a geometry collection type.

ST_IsPlanar - Check if a surface is or not planar

ST_IsPolygonCCW - Tests if Polygons have exterior rings oriented counter-clockwise and interior rings oriented clockwise.

ST_IsPolygonCW - Tests if Polygons have exterior rings oriented clockwise and interior rings oriented counter-clockwise.

ST_IsSimple - Tests if a geometry has no points of self-intersection or self-tangency.

ST_IsSolid - Test if the geometry is a solid. No validity check is performed.

ST_IsValidTrajectory - Tests if the geometry is a valid trajectory.

ST_Length_Spheroid - Returns the 2D or 3D length/perimeter of a lon/lat geometry on a spheroid.

ST_LineFromMultiPoint - Creates a LineString from a MultiPoint geometry.

ST_LineInterpolatePoint - Returns a point interpolated along a line at a fractional location.

ST_LineInterpolatePoints - Returns points interpolated along a line at a fractional interval.

ST_LineSubstring - Returns the part of a line between two fractional locations.

ST_LineToCurve - Converts a linear geometry to a curved geometry.

ST_LocateBetweenElevations - Returns the portions of a geometry that lie in an elevation (Z) range.

ST_M - Returns the M coordinate of a Point.

ST_MakeLine - Creates a LineString from Point, MultiPoint, or LineString geometries.

ST_MakePoint - Creates a 2D, 3DZ or 4D Point.

ST_MakePolygon - Creates a Polygon from a shell and optional list of holes.

ST_MakeSolid - Cast the geometry into a solid. No check is performed. To obtain a valid solid, the input geometry must be a closed Polyhedral Surface or a closed TIN.

ST_MakeValid - Attempts to make an invalid geometry valid without losing vertices.

ST_MemSize - Returns the amount of memory space a geometry takes.

ST_MemUnion - Aggregate function which unions geometries in a memory-efficent but slower way

ST_NDims - Returns the coordinate dimension of a geometry.

ST_NPoints - Returns the number of points (vertices) in a geometry.

ST_NRings - Returns the number of rings in a polygonal geometry.

ST_Node - Nodes a collection of lines.

ST_NumGeometries - Returns the number of elements in a geometry collection.

ST_NumPatches - Return the number of faces on a Polyhedral Surface. Will return null for non-polyhedral geometries.

ST_Orientation - Determine surface orientation

ST_PatchN - Returns the Nth geometry (face) of a PolyhedralSurface.

ST_PointFromWKB - Makes a geometry from WKB with the given SRID

ST_PointN - Returns the Nth point in the first LineString or circular LineString in a geometry.

ST_PointOnSurface - Computes a point guaranteed to lie in a polygon, or on a geometry.

ST_Points - Returns a MultiPoint containing the coordinates of a geometry.

ST_Polygon - Creates a Polygon from a LineString with a specified SRID.

ST_RemovePoint - Remove a point from a linestring.

ST_RemoveRepeatedPoints - Returns a version of a geometry with duplicate points removed.

ST_Reverse - Return the geometry with vertex order reversed.

ST_Rotate - Rotates a geometry about an origin point.

ST_RotateX - Rotates a geometry about the X axis.

ST_RotateY - Rotates a geometry about the Y axis.

ST_RotateZ - Rotates a geometry about the Z axis.

ST_Scale - Scales a geometry by given factors.

ST_Scroll - Change start point of a closed LineString.

ST_SetPoint - Replace point of a linestring with a given point.

ST_Shift_Longitude - Shifts the longitude coordinates of a geometry between -180..180 and 0..360.

ST_SnapToGrid - Snap all points of the input geometry to a regular grid.

ST_StartPoint - Returns the first point of a LineString.

ST_StraightSkeleton - Compute a straight skeleton from a geometry

ST_SwapOrdinates - Returns a version of the given geometry with given ordinate values swapped.

ST_SymDifference - Computes a geometry representing the portions of geometries A and B that do not intersect.

ST_Tesselate - Perform surface Tesselation of a polygon or polyhedralsurface and returns as a TIN or collection of TINS

ST_TransScale - Translates and scales a geometry by given offsets and factors.

ST_Translate - Translates a geometry by given offsets.

ST_UnaryUnion - Computes the union of the components of a single geometry.

ST_Union - Computes a geometry representing the point-set union of the input geometries.

ST_Volume - Computes the volume of a 3D solid. If applied to surface (even closed) geometries will return 0.

ST_WrapX - Wrap a geometry around an X value.

ST_X - Returns the X coordinate of a Point.

ST_XMax - Returns the X maxima of a 2D or 3D bounding box or a geometry.

ST_XMin - Returns the X minima of a 2D or 3D bounding box or a geometry.

ST_Y - Returns the Y coordinate of a Point.

ST_YMax - Returns the Y maxima of a 2D or 3D bounding box or a geometry.

ST_YMin - Returns the Y minima of a 2D or 3D bounding box or a geometry.

ST_Z - Returns the Z coordinate of a Point.

ST_ZMax - Returns the Z maxima of a 2D or 3D bounding box or a geometry.

ST_ZMin - Returns the Z minima of a 2D or 3D bounding box or a geometry.

ST_Zmflag - Returns a code indicating the ZM coordinate dimension of a geometry.

TG_Equals - Returns true if two topogeometries are composed of the same topology primitives.

TG_Intersects - Returns true if any pair of primitives from the two topogeometries intersect.

UpdateGeometrySRID - Updates the SRID of all features in a geometry column, and the table metadata.

geometry_overlaps_nd - Returns TRUE if A’s n-D bounding box intersects B’s n-D bounding box.

overlaps_nd_geometry_gidx - Returns TRUE if a geometry’s (cached) n-D bounding box intersects a n-D float precision bounding box (GIDX).

overlaps_nd_gidx_geometry - Returns TRUE if a n-D float precision bounding box (GIDX) intersects a geometry’s (cached) n-D bounding box.

overlaps_nd_gidx_gidx - Returns TRUE if two n-D float precision bounding boxes (GIDX) intersect each other.

postgis_sfcgal_full_version - Returns the full version of SFCGAL in use including CGAL and Boost versions

postgis_sfcgal_version - Returns the version of SFCGAL in use

AddGeometryColumn - Adds a geometry column to an existing table.

Box2D - Returns a BOX2D representing the 2D extent of a geometry.

Box3D - Returns a BOX3D representing the 3D extent of a geometry.

DropGeometryColumn - Removes a geometry column from a spatial table.

GeometryType - Returns the type of a geometry as text.

PostGIS_AddBBox - Add bounding box to the geometry.

PostGIS_DropBBox - Drop the bounding box cache from the geometry.

PostGIS_HasBBox - Returns TRUE if the bbox of this geometry is cached, FALSE otherwise.

ST_3DExtent - Aggregate function that returns the 3D bounding box of geometries.

ST_Affine - Apply a 3D affine transformation to a geometry.

ST_AsBinary - Return the OGC/ISO Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

ST_AsEWKB - Return the Extended Well-Known Binary (EWKB) representation of the geometry with SRID meta data.

ST_AsEWKT - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

ST_AsHEXEWKB - Returns a Geometry in HEXEWKB format (as text) using either little-endian (NDR) or big-endian (XDR) encoding.

ST_AsText - Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata.

ST_Collect - Creates a GeometryCollection or Multi* geometry from a set of geometries.

ST_CoordDim - Return the coordinate dimension of a geometry.

ST_CurveToLine - Converts a geometry containing curves to a linear geometry.

ST_Distance - Returns the distance between two geometry or geography values.

ST_Dump - Returns a set of geometry_dump rows for the components of a geometry.

ST_DumpPoints - Returns a set of geometry_dump rows for the coordinates in a geometry.

ST_EndPoint - Returns the last point of a LineString or CircularLineString.

ST_EstimatedExtent - Returns the estimated extent of a spatial table.

ST_FlipCoordinates - Returns a version of a geometry with X and Y axis flipped.

ST_Force2D - Force the geometries into a "2-dimensional mode".

ST_ForceCurve - Upcast a geometry into its curved type, if applicable.

ST_ForceSFS - Force the geometries to use SFS 1.1 geometry types only.

ST_Force3D - Force the geometries into XYZ mode. This is an alias for ST_Force3DZ.

ST_Force3DM - Force the geometries into XYM mode.

ST_Force3DZ - Force the geometries into XYZ mode.

ST_Force4D - Force the geometries into XYZM mode.

ST_ForceCollection - Convert the geometry into a GEOMETRYCOLLECTION.

ST_GeoHash - Return a GeoHash representation of the geometry.

ST_GeogFromWKB - Creates a geography instance from a Well-Known Binary geometry representation (WKB) or extended Well Known Binary (EWKB).

ST_GeomFromEWKB - Return a specified ST_Geometry value from Extended Well-Known Binary representation (EWKB).

ST_GeomFromEWKT - Return a specified ST_Geometry value from Extended Well-Known Text representation (EWKT).

ST_GeomFromText - Return a specified ST_Geometry value from Well-Known Text representation (WKT).

ST_GeomFromWKB - Creates a geometry instance from a Well-Known Binary geometry representation (WKB) and optional SRID.

ST_GeometryN - Return an element of a geometry collection.

= - Returns TRUE if the coordinates and coordinate order geometry/geography A are the same as the coordinates and coordinate order of geometry/geography B.

&<| - Returns TRUE if A’s bounding box overlaps or is below B’s.

ST_HasArc - Tests if a geometry contains a circular arc

ST_Intersects - Tests if two geometries intersect (they have at least one point in common).

ST_IsClosed - Tests if a LineStrings’s start and end points are coincident. For a PolyhedralSurface tests if it is closed (volumetric).

ST_IsCollection - Tests if a geometry is a geometry collection type.

ST_IsEmpty - Tests if a geometry is empty.

ST_LineToCurve - Converts a linear geometry to a curved geometry.

ST_MemSize - Returns the amount of memory space a geometry takes.

ST_NPoints - Returns the number of points (vertices) in a geometry.

ST_NRings - Returns the number of rings in a polygonal geometry.

ST_PointFromWKB - Makes a geometry from WKB with the given SRID

ST_PointN - Returns the Nth point in the first LineString or circular LineString in a geometry.

ST_Points - Returns a MultiPoint containing the coordinates of a geometry.

ST_Rotate - Rotates a geometry about an origin point.

ST_RotateZ - Rotates a geometry about the Z axis.

ST_SRID - Returns the spatial reference identifier for a geometry.

ST_Scale - Scales a geometry by given factors.

ST_SetSRID - Set the SRID on a geometry.

ST_StartPoint - Returns the first point of a LineString.

ST_Summary - Returns a text summary of the contents of a geometry.

ST_SwapOrdinates - Returns a version of the given geometry with given ordinate values swapped.

ST_TransScale - Translates and scales a geometry by given offsets and factors.

ST_Transform - Return a new geometry with coordinates transformed to a different spatial reference system.

ST_Translate - Translates a geometry by given offsets.

ST_XMax - Returns the X maxima of a 2D or 3D bounding box or a geometry.

ST_XMin - Returns the X minima of a 2D or 3D bounding box or a geometry.

ST_YMax - Returns the Y maxima of a 2D or 3D bounding box or a geometry.

ST_YMin - Returns the Y minima of a 2D or 3D bounding box or a geometry.

ST_ZMax - Returns the Z maxima of a 2D or 3D bounding box or a geometry.

ST_ZMin - Returns the Z minima of a 2D or 3D bounding box or a geometry.

ST_Zmflag - Returns a code indicating the ZM coordinate dimension of a geometry.

UpdateGeometrySRID - Updates the SRID of all features in a geometry column, and the table metadata.

~(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains another 2D float precision bounding box (BOX2DF).

~(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains a geometry’s 2D bonding box.

~(geometry,box2df) - Returns TRUE if a geometry’s 2D bonding box contains a 2D float precision bounding box (GIDX).

&& - Returns TRUE if A’s 2D bounding box intersects B’s 2D bounding box.

&&& - Returns TRUE if A’s n-D bounding box intersects B’s n-D bounding box.

@(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into another 2D float precision bounding box.

@(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into a geometry’s 2D bounding box.

@(geometry,box2df) - Returns TRUE if a geometry’s 2D bounding box is contained into a 2D float precision bounding box (BOX2DF).

&&(box2df,box2df) - Returns TRUE if two 2D float precision bounding boxes (BOX2DF) intersect each other.

&&(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) intersects a geometry’s (cached) 2D bounding box.

&&(geometry,box2df) - Returns TRUE if a geometry’s (cached) 2D bounding box intersects a 2D float precision bounding box (BOX2DF).

&&&(geometry,gidx) - Returns TRUE if a geometry’s (cached) n-D bounding box intersects a n-D float precision bounding box (GIDX).

&&&(gidx,geometry) - Returns TRUE if a n-D float precision bounding box (GIDX) intersects a geometry’s (cached) n-D bounding box.

&&&(gidx,gidx) - Returns TRUE if two n-D float precision bounding boxes (GIDX) intersect each other.

Box2D - Returns a BOX2D representing the 2D extent of a geometry.

Box3D - Returns a BOX3D representing the 3D extent of a geometry.

GeometryType - Returns the type of a geometry as text.

ST_3DArea - Computes area of 3D surface geometries. Will return 0 for solids.

ST_3DClosestPoint - Returns the 3D point on g1 that is closest to g2. This is the first point of the 3D shortest line.

ST_3DConvexHull - Computes the 3D convex hull of a geometry.

ST_3DDFullyWithin - Tests if two 3D geometries are entirely within a given 3D distance

ST_3DDWithin - Tests if two 3D geometries are within a given 3D distance

ST_3DDifference - Perform 3D difference

ST_3DDistance - Returns the 3D cartesian minimum distance (based on spatial ref) between two geometries in projected units.

ST_3DExtent - Aggregate function that returns the 3D bounding box of geometries.

ST_3DIntersection - Perform 3D intersection

ST_3DIntersects - Tests if two geometries spatially intersect in 3D - only for points, linestrings, polygons, polyhedral surface (area).

ST_3DLongestLine - Returns the 3D longest line between two geometries

ST_3DMaxDistance - Returns the 3D cartesian maximum distance (based on spatial ref) between two geometries in projected units.

ST_3DShortestLine - Returns the 3D shortest line between two geometries

ST_3DUnion - Perform 3D union.

ST_Affine - Apply a 3D affine transformation to a geometry.

ST_ApproximateMedialAxis - Compute the approximate medial axis of an areal geometry.

ST_Area - Returns the area of a polygonal geometry.

ST_AsBinary - Return the OGC/ISO Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

ST_AsEWKB - Return the Extended Well-Known Binary (EWKB) representation of the geometry with SRID meta data.

ST_AsEWKT - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

ST_AsGML - Return the geometry as a GML version 2 or 3 element.

ST_AsX3D - Returns a Geometry in X3D xml node element format: ISO-IEC-19776-1.2-X3DEncodings-XML

ST_CoordDim - Return the coordinate dimension of a geometry.

ST_Dimension - Returns the topological dimension of a geometry.

ST_Dump - Returns a set of geometry_dump rows for the components of a geometry.

ST_DumpPoints - Returns a set of geometry_dump rows for the coordinates in a geometry.

ST_Expand - Returns a bounding box expanded from another bounding box or a geometry.

ST_Extent - Aggregate function that returns the bounding box of geometries.

ST_Extrude - Extrude a surface to a related volume

ST_FlipCoordinates - Returns a version of a geometry with X and Y axis flipped.

ST_Force2D - Force the geometries into a "2-dimensional mode".

ST_ForceLHR - Force LHR orientation

ST_ForceRHR - Force the orientation of the vertices in a polygon to follow the Right-Hand-Rule.

ST_ForceSFS - Force the geometries to use SFS 1.1 geometry types only.

ST_Force3D - Force the geometries into XYZ mode. This is an alias for ST_Force3DZ.

ST_Force3DZ - Force the geometries into XYZ mode.

ST_ForceCollection - Convert the geometry into a GEOMETRYCOLLECTION.

ST_GeomFromEWKB - Return a specified ST_Geometry value from Extended Well-Known Binary representation (EWKB).

ST_GeomFromEWKT - Return a specified ST_Geometry value from Extended Well-Known Text representation (EWKT).

ST_GeomFromGML - Takes as input GML representation of geometry and outputs a PostGIS geometry object

ST_GeometryN - Return an element of a geometry collection.

ST_GeometryType - Returns the SQL-MM type of a geometry as text.

= - Returns TRUE if the coordinates and coordinate order geometry/geography A are the same as the coordinates and coordinate order of geometry/geography B.

&<| - Returns TRUE if A’s bounding box overlaps or is below B’s.

~= - Returns TRUE if A’s bounding box is the same as B’s.

ST_IsClosed - Tests if a LineStrings’s start and end points are coincident. For a PolyhedralSurface tests if it is closed (volumetric).

ST_IsPlanar - Check if a surface is or not planar

ST_IsSolid - Test if the geometry is a solid. No validity check is performed.

ST_MakeSolid - Cast the geometry into a solid. No check is performed. To obtain a valid solid, the input geometry must be a closed Polyhedral Surface or a closed TIN.

ST_MemSize - Returns the amount of memory space a geometry takes.

ST_NPoints - Returns the number of points (vertices) in a geometry.

ST_NumGeometries - Returns the number of elements in a geometry collection.

ST_NumPatches - Return the number of faces on a Polyhedral Surface. Will return null for non-polyhedral geometries.

ST_PatchN - Returns the Nth geometry (face) of a PolyhedralSurface.

ST_RemoveRepeatedPoints - Returns a version of a geometry with duplicate points removed.

ST_Reverse - Return the geometry with vertex order reversed.

ST_Rotate - Rotates a geometry about an origin point.

ST_RotateX - Rotates a geometry about the X axis.

ST_RotateY - Rotates a geometry about the Y axis.

ST_RotateZ - Rotates a geometry about the Z axis.

ST_Scale - Scales a geometry by given factors.

ST_ShiftLongitude - Shifts the longitude coordinates of a geometry between -180..180 and 0..360.

ST_StraightSkeleton - Compute a straight skeleton from a geometry

ST_Summary - Returns a text summary of the contents of a geometry.

ST_SwapOrdinates - Returns a version of the given geometry with given ordinate values swapped.

ST_Tesselate - Perform surface Tesselation of a polygon or polyhedralsurface and returns as a TIN or collection of TINS

ST_Transform - Return a new geometry with coordinates transformed to a different spatial reference system.

ST_Volume - Computes the volume of a 3D solid. If applied to surface (even closed) geometries will return 0.

~(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains another 2D float precision bounding box (BOX2DF).

~(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) contains a geometry’s 2D bonding box.

~(geometry,box2df) - Returns TRUE if a geometry’s 2D bonding box contains a 2D float precision bounding box (GIDX).

&& - Returns TRUE if A’s 2D bounding box intersects B’s 2D bounding box.

&&& - Returns TRUE if A’s n-D bounding box intersects B’s n-D bounding box.

@(box2df,box2df) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into another 2D float precision bounding box.

@(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) is contained into a geometry’s 2D bounding box.

@(geometry,box2df) - Returns TRUE if a geometry’s 2D bounding box is contained into a 2D float precision bounding box (BOX2DF).

&&(box2df,box2df) - Returns TRUE if two 2D float precision bounding boxes (BOX2DF) intersect each other.

&&(box2df,geometry) - Returns TRUE if a 2D float precision bounding box (BOX2DF) intersects a geometry’s (cached) 2D bounding box.

&&(geometry,box2df) - Returns TRUE if a geometry’s (cached) 2D bounding box intersects a 2D float precision bounding box (BOX2DF).

&&&(geometry,gidx) - Returns TRUE if a geometry’s (cached) n-D bounding box intersects a n-D float precision bounding box (GIDX).

&&&(gidx,geometry) - Returns TRUE if a n-D float precision bounding box (GIDX) intersects a geometry’s (cached) n-D bounding box.

&&&(gidx,gidx) - Returns TRUE if two n-D float precision bounding boxes (GIDX) intersect each other.

postgis_sfcgal_full_version - Returns the full version of SFCGAL in use including CGAL and Boost versions

postgis_sfcgal_version - Returns the version of SFCGAL in use

A means the function works with the type or subtype natively.

A means it works but with a transform cast built-in using cast to geometry, transform to a "best srid" spatial ref and then cast back. Results may not be as expected for large areas or areas at poles and may accumulate floating point junk.

A means the function works with the type because of a auto-cast to another such as to box3d rather than direct type support.

A means the function only available if PostGIS compiled with SFCGAL support.

A means the function support is provided by SFCGAL if PostGIS compiled with SFCGAL support, otherwise GEOS/built-in support.

geom - Basic 2D geometry support (x,y).

geog - Basic 2D geography support (x,y).

2.5D - basic 2D geometries in 3 D/4D space (has Z or M coord).

PS - Polyhedral surfaces

T - Triangles and Triangulated Irregular Network surfaces (TIN)

RemoveUnusedPrimitives - Availability: 3.3.0 Removes topology primitives which not needed to define existing TopoGeometry objects.

ST_3DConvexHull - Availability: 3.3.0 Computes the 3D convex hull of a geometry.

ST_3DUnion - Availability: 3.3.0 aggregate variant was added Perform 3D union.

ST_AlphaShape - Availability: 3.3.0 - requires SFCGAL >= 1.4.1. Computes a possible concave geometry using the CGAL Alpha Shapes algorithm.

ST_AsMARC21 - Availability: 3.3.0 Returns geometry as a MARC21/XML record with a geographic datafield (034).

ST_GeomFromMARC21 - Availability: 3.3.0, requires libxml2 2.6+ Takes MARC21/XML geographic data as input and returns a PostGIS geometry object.

ST_Letters - Availability: 3.3.0 Returns the input letters rendered as geometry with a default start position at the origin and default text height of 100.

ST_OptimalAlphaShape - Availability: 3.3.0 - requires SFCGAL >= 1.4.1. Computes a possible concave geometry using the CGAL Alpha Shapes algorithm after have computed the "optimal" alpha value.

ST_SimplifyPolygonHull - Availability: 3.3.0 - requires GEOS >= 3.11.0 Computes a simplifed topology-preserving outer or inner hull of a polygonal geometry.

ST_TriangulatePolygon - Availability: 3.3.0 - requires GEOS >= 3.11.0 Computes the constrained Delaunay triangulation of polygons

postgis_sfcgal_full_version - Availability: 3.3.0 Returns the full version of SFCGAL in use including CGAL and Boost versions

ST_ConcaveHull - Enhanced: 3.3.0, GEOS native implementation enabled for GEOS 3.11+ Computes a possibly concave geometry that encloses all input geometry vertices

ST_LineMerge - Enhanced: 3.3.0 accept a directed parameter - requires GEOS >= 3.11.0 Return the lines formed by sewing together a MultiLineString.

PostGIS_Extensions_Upgrade - Changed: 3.3.0 support for upgrades from any PostGIS version. Does not work on all systems. Packages and upgrades PostGIS extensions (e.g. postgis_raster,postgis_topology, postgis_sfcgal) to latest available version.

FindLayer - Availability: 3.2.0 Returns a topology.layer record by different means.

FindTopology - Availability: 3.2.0 Returns a topology record by different means.

GetFaceContainingPoint - Availability: 3.2.0 Finds the face containing a point.

ST_AsFlatGeobuf - Availability: 3.2.0 Return a FlatGeobuf representation of a set of rows.

ST_Contour - Availability: 3.2.0 Generates a set of vector contours from the provided raster band, using the GDAL contouring algorithm.

ST_DumpSegments - Availability: 3.2.0 Returns a set of geometry_dump rows for the segments in a geometry.

ST_FromFlatGeobuf - Availability: 3.2.0 Reads FlatGeobuf data.

ST_FromFlatGeobufToTable - Availability: 3.2.0 Creates a table based on the structure of FlatGeobuf data.

ST_InterpolateRaster - Availability: 3.2.0 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.

ST_SRID - Availability: 3.2.0 Returns the spatial reference identifier for a topogeometry.

ST_Scroll - Availability: 3.2.0 Change start point of a closed LineString.

ST_SetM - Availability: 3.2.0 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.

ST_SetZ - Availability: 3.2.0 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.

TopoGeom_addTopoGeom - Availability: 3.2 Adds element of a TopoGeometry to the definition of another TopoGeometry.

ValidateTopologyRelation - Availability: 3.2.0 Returns info about invalid topology relation records

postgis.gdal_vsi_options - Availability: 3.2.0 A string configuration to set options used when working with an out-db raster.

GetFaceByPoint - Enhanced: 3.2.0 more efficient implementation and clearer contract, stops working with invalid topologies. Finds face intersecting a given point.

ST_ClusterKMeans - Enhanced: 3.2.0 Support for max_radius Window function that returns a cluster id for each input geometry using the K-means algorithm.

ST_MakeValid - Enhanced: 3.2.0, added algorithm options, 'linework' and 'structure' which requires GEOS >= 3.10.0. Attempts to make an invalid geometry valid without losing vertices.

ST_MoveIsoNode - Enhanced: 3.2.0 ensures the nod cannot be moved in a different face Moves an isolated node in a topology from one point to another. If new apoint geometry exists as a node an error is thrown. Returns description of move.

ST_PixelAsCentroid - Enhanced: 3.2.0 Faster now implemented in C. Returns the centroid (point geometry) of the area represented by a pixel.

ST_PixelAsCentroids - Enhanced: 3.2.0 Faster now implemented in C. 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.

ST_Point - Enhanced: 3.2.0 srid as an extra optional argument was added. Older installs require combining with ST_SetSRID to mark the srid on the geometry. Creates a Point with X, Y and SRID values.

ST_PointM - Enhanced: 3.2.0 srid as an extra optional argument was added. Older installs require combining with ST_SetSRID to mark the srid on the geometry. Creates a Point with X, Y, M and SRID values.

ST_PointZ - Enhanced: 3.2.0 srid as an extra optional argument was added. Older installs require combining with ST_SetSRID to mark the srid on the geometry. Creates a Point with X, Y, Z and SRID values.

ST_PointZM - Enhanced: 3.2.0 srid as an extra optional argument was added. Older installs require combining with ST_SetSRID to mark the srid on the geometry. Creates a Point with X, Y, Z, M and SRID values.

ST_RemovePoint - Enhanced: 3.2.0 Remove a point from a linestring.

ST_RemoveRepeatedPoints - Enhanced: 3.2.0 Returns a version of a geometry with duplicate points removed.

ST_StartPoint - Enhanced: 3.2.0 returns a point for all geometries. Prior behavior returns NULLs if input was not a LineString. Returns the first point of a LineString.

ST_Value - Enhanced: 3.2.0 resample optional argument was added. 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.

ST_Boundary - Changed: 3.2.0 support for TIN, does not use geos, does not linearize curves Returns the boundary of a geometry.

ValidateTopology - Changed: 3.2.0 added optional bbox parameter, perform face labeling and edge linking checks. Returns a set of validatetopology_returntype objects detailing issues with topology.

ST_Hexagon - Availability: 3.1.0 Returns a single hexagon, using the provided edge size and cell coordinate within the hexagon grid space.

ST_HexagonGrid - Availability: 3.1.0 Returns a set of hexagons and cell indices that completely cover the bounds of the geometry argument.

ST_MaximumInscribedCircle - Availability: 3.1.0 - requires GEOS >= 3.9.0. Computes the largest circle contained within a geometry.

ST_ReducePrecision - Availability: 3.1.0

ST_Square - Availability: 3.1.0 Returns a single square, using the provided edge size and cell coordinate within the square grid space.

ST_SquareGrid - Availability: 3.1.0 Returns a set of grid squares and cell indices that completely cover the bounds of the geometry argument.

ST_AsEWKT - Enhanced: 3.1.0 support for optional precision parameter. Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

ST_ClusterKMeans - Enhanced: 3.1.0 Support for 3D geometries and weights Window function that returns a cluster id for each input geometry using the K-means algorithm.

ST_Difference - Enhanced: 3.1.0 accept a gridSize parameter - requires GEOS >= 3.9.0 Computes a geometry representing the part of geometry A that does not intersect geometry B.

ST_Intersection - Enhanced: 3.1.0 accept a gridSize parameter - requires GEOS >= 3.9.0 Computes a geometry representing the shared portion of geometries A and B.

ST_MakeValid - Enhanced: 3.1.0, added removal of Coordinates with NaN values. Attempts to make an invalid geometry valid without losing vertices.

ST_Subdivide - Enhanced: 3.1.0 accept a gridSize parameter, requires GEOS >= 3.9.0 to use this new feature. Computes a rectilinear subdivision of a geometry.

ST_SymDifference - Enhanced: 3.1.0 accept a gridSize parameter - requires GEOS >= 3.9.0 Computes a geometry representing the portions of geometries A and B that do not intersect.

ST_TileEnvelope - Enhanced: 3.1.0 Added margin parameter. Creates a rectangular Polygon in Web Mercator (SRID:3857) using the XYZ tile system.

ST_UnaryUnion - Enhanced: 3.1.0 accept a gridSize parameter - requires GEOS >= 3.9.0 Computes the union of the components of a single geometry.

ST_Union - Enhanced: 3.1.0 accept a gridSize parameter - requires GEOS >= 3.9.0 Computes a geometry representing the point-set union of the input geometries.

ST_Count - Changed: 3.1.0 - The ST_Count(rastertable, rastercolumn, …​) variants removed. Use instead. 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.

ST_Force3D - Changed: 3.1.0. Added support for supplying a non-zero Z value. Force the geometries into XYZ mode. This is an alias for ST_Force3DZ.

ST_Force3DM - Changed: 3.1.0. Added support for supplying a non-zero M value. Force the geometries into XYM mode.

ST_Force3DZ - Changed: 3.1.0. Added support for supplying a non-zero Z value. Force the geometries into XYZ mode.

ST_Force4D - Changed: 3.1.0. Added support for supplying non-zero Z and M values. Force the geometries into XYZM mode.

ST_Histogram - Changed: 3.1.0 Removed ST_Histogram(table_name, column_name) variant. Returns a set of record summarizing a raster or raster coverage data distribution separate bin ranges. Number of bins are autocomputed if not specified.

ST_Quantile - Changed: 3.1.0 Removed ST_Quantile(table_name, column_name) variant. 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 raster’s 25%, 50%, 75% percentile.

ST_SummaryStats - Changed: 3.1.0 ST_SummaryStats(rastertable, rastercolumn, …​) variants are removed. Use instead. 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.

ST_3DLineInterpolatePoint - Availability: 3.0.0 Returns a point interpolated along a 3D line at a fractional location.

ST_ConstrainedDelaunayTriangles

ST_TileEnvelope - Availability: 3.0.0 Creates a rectangular Polygon in Web Mercator (SRID:3857) using the XYZ tile system.

ST_AsMVT - Enhanced: 3.0 - added support for Feature ID. Aggregate function returning a MVT representation of a set of rows.

ST_Contains - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if no points of B lie in the exterior of A, and A and B have at least one interior point in common.

ST_ContainsProperly - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if B intersects the interior of A but not the boundary or exterior.

ST_CoveredBy - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if no point in A is outside B

ST_Covers - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if no point in B is outside A

ST_Crosses - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries have some, but not all, interior points in common.

ST_CurveToLine - Enhanced: 3.0.0 implemented a minimum number of segments per linearized arc to prevent topological collapse. Converts a geometry containing curves to a linear geometry.

ST_Disjoint - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries are disjoint (they have no point in common).

ST_Equals - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries include the same set of points.

ST_GeneratePoints - Enhanced: 3.0.0, added seed parameter Generates random points contained in a Polygon or MultiPolygon.

ST_GeomFromGeoJSON - Enhanced: 3.0.0 parsed geometry defaults to SRID=4326 if not specified otherwise. Takes as input a geojson representation of a geometry and outputs a PostGIS geometry object

ST_LocateBetween - Enhanced: 3.0.0 - added support for POLYGON, TIN, TRIANGLE. Returns the portions of a geometry that match a measure range.

ST_LocateBetweenElevations - Enhanced: 3.0.0 - added support for POLYGON, TIN, TRIANGLE. Returns the portions of a geometry that lie in an elevation (Z) range.

ST_Overlaps - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries intersect and have the same dimension, but are not completely contained by each other.

ST_Relate - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries have a topological relationship matching an Intersection Matrix pattern, or computes their Intersection Matrix

ST_Segmentize - Enhanced: 3.0.0 Segmentize geometry now uses equal length segments Return a modified geometry/geography having no segment longer than the given distance.

ST_Touches - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if two geometries have at least one point in common, but their interiors do not intersect.

ST_Within - Enhanced: 3.0.0 enabled support for GEOMETRYCOLLECTION Tests if no points of A lie in the exterior of B, and A and B have at least one interior point in common.

PostGIS_Extensions_Upgrade - Changed: 3.0.0 to repackage loose extensions and support postgis_raster. Packages and upgrades PostGIS extensions (e.g. postgis_raster,postgis_topology, postgis_sfcgal) to latest available version.

ST_3DDistance - Changed: 3.0.0 - SFCGAL version removed Returns the 3D cartesian minimum distance (based on spatial ref) between two geometries in projected units.

ST_3DIntersects - Changed: 3.0.0 SFCGAL backend removed, GEOS backend supports TINs. Tests if two geometries spatially intersect in 3D - only for points, linestrings, polygons, polyhedral surface (area).

ST_Area - Changed: 3.0.0 - does not depend on SFCGAL anymore. Returns the area of a polygonal geometry.

ST_AsGeoJSON - Changed: 3.0.0 support records as input Return a geometry as a GeoJSON element.

ST_AsGeoJSON - Changed: 3.0.0 output SRID if not EPSG:4326. Return a geometry as a GeoJSON element.

ST_AsKML - Changed: 3.0.0 - Removed the "versioned" variant signature Return the geometry as a KML element.

ST_Distance - Changed: 3.0.0 - does not depend on SFCGAL anymore. Returns the distance between two geometry or geography values.

ST_Intersection - Changed: 3.0.0 does not depend on SFCGAL. Computes a geometry representing the shared portion of geometries A and B.

ST_Intersects - Changed: 3.0.0 SFCGAL version removed and native support for 2D TINS added. Tests if two geometries intersect (they have at least one point in common).

ST_Union - Changed: 3.0.0 does not depend on SFCGAL. Computes a geometry representing the point-set union of the input geometries.

ST_QuantizeCoordinates - Availability: 2.5.0 Sets least significant bits of coordinates to zero

PostGIS_Extensions_Upgrade - Availability: 2.5.0 Packages and upgrades PostGIS extensions (e.g. postgis_raster,postgis_topology, postgis_sfcgal) to latest available version.

ST_Angle - Availability: 2.5.0 Returns the angle between two vectors defined by 3 or 4 points, or 2 lines.

ST_AsHexWKB - Availability: 2.5.0 Return the Well-Known Binary (WKB) in Hex representation of the raster.

ST_BandFileSize - Availability: 2.5.0 Returns the file size of a band stored in file system. If no bandnum specified, 1 is assumed.

ST_BandFileTimestamp - Availability: 2.5.0 Returns the file timestamp of a band stored in file system. If no bandnum specified, 1 is assumed.

ST_ChaikinSmoothing - Availability: 2.5.0 Returns a smoothed version of a geometry, using the Chaikin algorithm

ST_FilterByM - Availability: 2.5.0 Removes vertices based on their M value

ST_Grayscale - Availability: 2.5.0 Creates a new one-8BUI band raster from the source raster and specified bands representing Red, Green and Blue

ST_LineInterpolatePoints - Availability: 2.5.0 Returns points interpolated along a line at a fractional interval.

ST_OrientedEnvelope - Availability: 2.5.0 Returns a minimum-area rectangle containing a geometry.

ST_RastFromHexWKB - Availability: 2.5.0 Return a raster value from a Hex representation of Well-Known Binary (WKB) raster.

ST_RastFromWKB - Availability: 2.5.0 Return a raster value from a Well-Known Binary (WKB) raster.

ST_SetBandIndex - Availability: 2.5.0 Update the external band number of an out-db band

ST_SetBandPath - Availability: 2.5.0 Update the external path and band number of an out-db band

ST_GeometricMedian - Enhanced: 2.5.0 Added support for M as weight of points. Returns the geometric median of a MultiPoint.

ST_AsBinary/ST_AsWKB - Enhanced: 2.5.0 Addition of ST_AsWKB Return the Well-Known Binary (WKB) representation of the raster.

ST_AsMVT - Enhanced: 2.5.0 - added support parallel query. Aggregate function returning a MVT representation of a set of rows.

ST_AsText - Enhanced: 2.5 - optional parameter precision introduced. Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata.

ST_BandMetaData - Enhanced: 2.5.0 to include outdbbandnum, filesize and filetimestamp for outdb rasters. Returns basic meta data for a specific raster band. band num 1 is assumed if none-specified.

ST_Buffer - Enhanced: 2.5.0 - ST_Buffer geometry support was enhanced to allow for side buffering specification side=both|left|right. Computes a geometry covering all points within a given distance from a geometry.

ST_GeomFromGeoJSON - Enhanced: 2.5.0 can now accept json and jsonb as inputs. Takes as input a geojson representation of a geometry and outputs a PostGIS geometry object

ST_Intersects - Enhanced: 2.5.0 Supports GEOMETRYCOLLECTION. Tests if two geometries intersect (they have at least one point in common).

ST_OffsetCurve - Enhanced: 2.5 - added support for GEOMETRYCOLLECTION and MULTILINESTRING Returns an offset line at a given distance and side from an input line.

ST_Scale - Enhanced: 2.5.0 support for scaling relative to a local origin (origin parameter) was introduced. Scales a geometry by given factors.

ST_Split - Enhanced: 2.5.0 support for splitting a polygon by a multiline was introduced. Returns a collection of geometries created by splitting a geometry by another geometry.

ST_Subdivide - Enhanced: 2.5.0 reuses existing points on polygon split, vertex count is lowered from 8 to 5. Computes a rectilinear subdivision of a geometry.

ST_GDALDrivers - Changed: 2.5.0 - add can_read and can_write columns. Returns a list of raster formats supported by PostGIS through GDAL. Only those formats with can_write=True can be used by ST_AsGDALRaster

ST_ForcePolygonCCW - Availability: 2.4.0 Orients all exterior rings counter-clockwise and all interior rings clockwise.

ST_ForcePolygonCW - Availability: 2.4.0 Orients all exterior rings clockwise and all interior rings counter-clockwise.

ST_IsPolygonCCW - Availability: 2.4.0 Tests if Polygons have exterior rings oriented counter-clockwise and interior rings oriented clockwise.

ST_IsPolygonCW - Availability: 2.4.0 Tests if Polygons have exterior rings oriented clockwise and interior rings oriented counter-clockwise.

ST_AsGeobuf - Availability: 2.4.0 Return a Geobuf representation of a set of rows.

ST_AsMVT - Availability: 2.4.0 Aggregate function returning a MVT representation of a set of rows.

ST_AsMVTGeom - Availability: 2.4.0 Transforms a geometry into the coordinate space of a MVT tile.

ST_Centroid - Availability: 2.4.0 support for geography was introduced. Returns the geometric center of a geometry.

ST_FrechetDistance - Availability: 2.4.0

ST_MakeEmptyCoverage - Availability: 2.4.0 Cover georeferenced area with a grid of empty raster tiles.

Loader_Generate_Nation_Script

Normalize_Address - Enhanced: 2.4.0 norm_addy object includes additional fields zip4 and address_alphanumeric. Given a textual street address, returns a composite norm_addy type that has road suffix, prefix and type standardized, street, streetname etc. broken into separate fields. This function will work with just the lookup data packaged with the tiger_geocoder (no need for tiger census data).

Pagc_Normalize_Address - Enhanced: 2.4.0 norm_addy object includes additional fields zip4 and address_alphanumeric. Given a textual street address, returns a composite norm_addy type that has road suffix, prefix and type standardized, street, streetname etc. broken into separate fields. This function will work with just the lookup data packaged with the tiger_geocoder (no need for tiger census data). Requires address_standardizer extension.

Reverse_Geocode - Enhanced: 2.4.1 if optional zcta5 dataset is loaded, the reverse_geocode function can resolve to state and zip even if the specific state data is not loaded. Refer to for details on loading zcta5 data. Takes a geometry point in a known spatial ref sys and returns a record containing an array of theoretically possible addresses and an array of cross streets. If include_strnum_range = true, includes the street range in the cross streets.

ST_AsTWKB - Enhanced: 2.4.0 memory and speed improvements. Returns the geometry as TWKB, aka "Tiny Well-Known Binary"

ST_Covers - Enhanced: 2.4.0 Support for polygon in polygon and line in polygon added for geography type Tests if no point in B is outside A

ST_CurveToLine - Enhanced: 2.4.0 added support for max-deviation and max-angle tolerance, and for symmetric output. Converts a geometry containing curves to a linear geometry.

ST_Project - Enhanced: 2.4.0 Allow negative distance and non-normalized azimuth. Returns a point projected from a start point by a distance and bearing (azimuth).

ST_Reverse - Enhanced: 2.4.0 support for curves was introduced. Return the geometry with vertex order reversed.

= - Changed: 2.4.0, in prior versions this was bounding box equality not a geometric equality. If you need bounding box equality, use instead. Returns TRUE if the coordinates and coordinate order geometry/geography A are the same as the coordinates and coordinate order of geometry/geography B.

ST_Node - Changed: 2.4.0 this function uses GEOSNode internally instead of GEOSUnaryUnion. This may cause the resulting linestrings to have a different order and direction compared to PostGIS < 2.4. Nodes a collection of lines.