Chapter 8. PostGIS Special Functions Index
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Chapter 8. PostGIS Special Functions Index

Table of Contents

8.1. PostGIS Aggregate Functions
8.2. PostGIS SQL-MM Compliant Functions
8.3. PostGIS Functions that support 3D
8.4. PostGIS Circular String Curve Support Functions

8.1. PostGIS Aggregate Functions

The functions given below are spatial aggregate functions provided with PostGIS that can be used just like any other sql aggregate function such as sum, average.

  • ST_Accum - Aggregate. Constructs an array of geometries.
  • ST_Collect - Return a specified ST_Geometry value from a collection of other geometries.
  • ST_Extent - an aggregate function that returns the bounding box that bounds rows of geometries.
  • ST_MakeLine - Creates a Linestring from point geometries.
  • ST_MemUnion - Same as ST_Union, only memory-friendly (uses less memory and more processor time).
  • ST_Polygonize - Aggregate. Creates a GeometryCollection containing possible polygons formed from the constituent linework of a set of geometries.
  • ST_Union - Returns a geometry that represents the point set union of the Geometries.

8.2. PostGIS SQL-MM Compliant Functions

The functions given below are PostGIS functions that conform to the SQL/MM 3 standard

[Note]

SQL-MM defines the default SRID of all geometry constructors as 0. PostGIS uses a default SRID of -1.

  • ST_Area - Returns the area of the geometry if it is a polygon or multi-polygon. This method implements the SQL/MM specification: SQL-MM 3: 8.1.2, 9.5.3
  • ST_AsBinary - Return the Well-Known Binary (WKB) representation of the geometry without SRID meta data. This method implements the SQL/MM specification: SQL-MM 3: 5.1.37
  • ST_AsText - Return the Well-Known Text (WKT) representation of the geometry without SRID metadata. This method implements the SQL/MM specification: SQL-MM 3: 5.1.25
  • ST_Boundary - Returns the closure of the combinatorial boundary of this Geometry. This method implements the SQL/MM specification: SQL-MM 3: 5.1.14
  • ST_Buffer - Returns a geometry that represents all points whose distance from this Geometry is less than or equal to distance. Calculations are in the Spatial Reference System of this Geometry. The optional third parameter sets the number of segments used to approximate a quarter circle (defaults to 8). This method implements the SQL/MM specification: SQL-MM 3: 5.1.17
  • 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_Contains - Returns true if the geometry B is completely inside geometry A. This method implements the SQL/MM specification: SQL-MM 3: 5.1.31
  • ST_ConvexHull - The convex hull of a geometry represents the minimum closed geometry that encloses all geometries within the set. This method implements the SQL/MM specification: SQL-MM 3: 5.1.16
  • ST_CoordDim - Return the coordinate dimension of the ST_Geometry value. This method implements the SQL/MM specification: SQL-MM 3: 5.1.3
  • ST_Crosses - Returns TRUE if the supplied 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 CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON This method implements the SQL/MM specification: SQL-MM 3: 7.1.7
  • ST_Difference - Returns a geometry that represents that part of geometry A that does not intersect with geometry B. This method implements the SQL/MM specification: SQL-MM 3: 5.1.20
  • ST_Dimension - The inherent dimension of this Geometry object, which must be less than or equal to the coordinate dimension. This method implements the SQL/MM specification: SQL-MM 3: 5.1.2
  • ST_Disjoint - Returns TRUE if the Geometries do not "spatially intersect" - if they do not share any space together. This method implements the SQL/MM specification: SQL-MM 3: 5.1.26
  • ST_Distance - Returns the 2-dimensional cartesian minimum distance between two geometries in projected units. This method implements the SQL/MM specification: SQL-MM 3: 5.1.23
  • ST_EndPoint - Returns the last point of a LINESTRING geometry as a POINT. This method implements the SQL/MM specification: SQL-MM 3: 7.1.4
  • ST_Envelope - Returns a geometry representing the bounding box of the supplied geometry. This method implements the SQL/MM specification: SQL-MM 3: 5.1.15
  • ST_Equals - Returns true if the given geometries represent the same geometry. Directionality is ignored. This method implements the SQL/MM specification: SQL-MM 3: 5.1.24
  • ST_ExteriorRing - Returns a line string representing the exterior ring of the POLYGON geometry. Return NULL if the geometry is not a polygon. Will not work with MULTIPOLYGON This method implements the SQL/MM specification: SQL-MM 3: 8.2.3, 8.3.3
  • 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 - Return a specified ST_Geometry value from Well-Known Binary 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 the 1-based Nth geometry if the geometry is a GEOMETRYCOLLECTION, MULTIPOINT, MULTILINESTRING or MULTIPOLYGON. Otherwise, return NULL. This method implements the SQL/MM specification: SQL-MM 3: 9.1.5
  • ST_GeometryType - Return the geometry type of the ST_Geometry value. This method implements the SQL/MM specification: SQL-MM 3: 5.1.4
  • ST_InteriorRingN - Return the Nth interior linestring ring of the polygon geometry. Return NULL if the geometry is not a polygon or the given N is out of range. This method implements the SQL/MM specification: SQL-MM 3: 8.2.6, 8.3.5
  • ST_Intersection - Returns a geometry that represents the shared portion of geomA and geomB This method implements the SQL/MM specification: SQL-MM 3: 5.1.18
  • ST_Intersects - Returns TRUE if the Geometries "spatially intersect" - (share any portion of space) and FALSE if they don't (they are Disjoint). This method implements the SQL/MM specification: SQL-MM 3: 5.1.27
  • ST_IsClosed - Returns TRUE if the LINESTRING's start and end points are coincident. This method implements the SQL/MM specification: SQL-MM 3: 7.1.5, 9.3.3
  • ST_IsEmpty - Returns true if this Geometry is an empty geometry . If true, then this Geometry represents the empty point set - i.e. GEOMETRYCOLLECTION(EMPTY). This method implements the SQL/MM specification: SQL-MM 3: 5.1.7
  • ST_IsRing - Returns TRUE if this LINESTRING is both closed and simple. This method implements the SQL/MM specification: SQL-MM 3: 7.1.6
  • ST_IsSimple - Returns (TRUE) if this Geometry has no anomalous geometric points, such as self intersection or self tangency. This method implements the SQL/MM specification: SQL-MM 3: 5.1.8
  • ST_IsValid - Returns true if the ST_Geometry is well formed. This method implements the SQL/MM specification: SQL-MM 3: 5.1.9
  • ST_Length - Returns the 2d length of the geometry if it is a linestring or multilinestring. This method implements the SQL/MM specification: SQL-MM 3: 7.1.2, 9.3.4
  • ST_M - Return the M coordinate of the point, or NULL if not available. Input must be a point. This method implements the SQL/MM specification: SQL-MM 3 New standard: ?
  • ST_NumGeometries - If geometry is a GEOMETRYCOLLECTION (or MULTI*) return the number of geometries, otherwise return NULL. This method implements the SQL/MM specification: SQL-MM 3: 9.1.4
  • ST_NumInteriorRing - Return the number of interior rings of the first polygon in the geometry. Synonym to ST_NumInteriorRings. This method implements the SQL/MM specification: SQL-MM 3: 8.2.5
  • ST_NumInteriorRings - Return the number of interior rings of the first polygon in the geometry. This will work with both POLYGON and MULTIPOLYGON types but only looks at the first polygon. Return NULL if there is no polygon in the geometry. This method implements the SQL/MM specification: SQL-MM 3: 8.2.5
  • ST_NumPoints - Return the number of points in an ST_LineString or ST_CircularString value. This method implements the SQL/MM specification: SQL-MM 3: 7.2.4
  • ST_OrderingEquals - Returns true if the given geometries represent the same geometry and points are in the same directional order. This method implements the SQL/MM specification: SQL-MM 3: 5.1.43
  • ST_Overlaps - Returns TRUE if the Geometries share space, are of 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_Perimeter - Return the length measurement of the boundary of an ST_Surface or ST_MultiSurface value. (Polygon, Multipolygon) This method implements the SQL/MM specification: SQL-MM 3: 8.1.3, 9.5.4
  • ST_Point - Returns an ST_Point with the given coordinate values. OGC alias for ST_MakePoint. 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_PointN - Return the Nth point in the first linestring or circular linestring in the geometry. Return NULL if there is no linestring in the geometry. This method implements the SQL/MM specification: SQL-MM 3: 7.2.5, 7.3.5
  • ST_PointOnSurface - Returns a POINT guaranteed to lie on the surface. This method implements the SQL/MM specification: SQL-MM 3: 8.1.5, 9.5.6
  • ST_Polygon - Returns a polygon built from the specified linestring and SRID. This method implements the SQL/MM specification: SQL-MM 3: 8.3.2
  • ST_Relate - Returns true if this Geometry is spatially related to anotherGeometry, by testing for intersections between the Interior, Boundary and Exterior of the two geometries as specified by the values in the intersectionPatternMatrix. If no intersectionPatternMatrix is passed in, then returns the maximum intersectionPatternMatrix that relates the 2 geometries. This method implements the SQL/MM specification: SQL-MM 3: 5.1.25
  • ST_SRID - Returns the spatial reference identifier for the ST_Geometry as defined in spatial_ref_sys table. This method implements the SQL/MM specification: SQL-MM 3: 5.1.5
  • ST_StartPoint - Returns the first point of a LINESTRING geometry as a POINT. This method implements the SQL/MM specification: SQL-MM 3: 7.1.3
  • ST_SymDifference - Returns a geometry that represents the portions of A and B that do not intersect. It is called a symmetric difference because ST_SymDifference(A,B) = ST_SymDifference(B,A). This method implements the SQL/MM specification: SQL-MM 3: 5.1.21
  • ST_Touches - Returns TRUE if the 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 - Returns a new geometry with its coordinates transformed to the SRID referenced by the integer parameter. This method implements the SQL/MM specification: SQL-MM 3: 5.1.6
  • ST_Union - Returns a geometry that represents the point set union of the Geometries. This method implements the SQL/MM specification: SQL-MM 3: 5.1.19
  • 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 - Returns true if the geometry A is completely inside geometry B This method implements the SQL/MM specification: SQL-MM 3: 5.1.30
  • ST_X - Return the X coordinate of the point, or NULL if not available. Input must be a point. This method implements the SQL/MM specification: SQL-MM 3 standard: SQL-MM 3: 6.1.3
  • ST_Y - Return the Y coordinate of the point, or NULL if not available. Input must be a point. This method implements the SQL/MM specification: SQL-MM 3 standard: SQL-MM 3: 6.1.4
  • ST_Z - Return the Z coordinate of the point, or NULL if not available. Input must be a point. This method implements the SQL/MM specification: SQL-MM 3 standard New Spec: ?

8.3. PostGIS Functions that support 3D

The functions given below are PostGIS functions that do not throw away the Z-Index.

  • AddGeometryColumn - Adds a geometry column to an existing table of attributes.
  • DropGeometryColumn - Removes a geometry column from a spatial table.
  • ST_Accum - Aggregate. Constructs an array of geometries.
  • ST_AddPoint - Adds a point to a LineString before point <position> (0-based index).
  • ST_Affine - Applies a 3d affine transformation to the geometry to do things like translate, rotate, scale in one step.
  • ST_AsEWKB - Return the Well-Known Binary (WKB) 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 the 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. Several variants. Default version=2, default max_sig_digits=15
  • ST_Boundary - Returns the closure of the combinatorial boundary of this Geometry.
  • ST_Box3D - Returns a BOX3D representing the maximum extents of the geometry.
  • ST_Collect - Return a specified ST_Geometry value from a collection of other geometries.
  • ST_ConvexHull - The convex hull of a geometry represents the minimum closed geometry that encloses all geometries within the set.
  • ST_CoordDim - Return the coordinate dimension of the ST_Geometry value.
  • ST_CurveToLine - Converts a CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON
  • ST_Difference - Returns a geometry that represents that part of geometry A that does not intersect with geometry B.
  • ST_Dump - Returns a set of geometry_dump (geom,path) rows, that make up a geometry g1.
  • ST_DumpRings - This is a set-returning function (SRF). It returns a set of geometry_dump rows, formed by a geometry (geom) and an array of integers (path). The 'path' field holds the polygon ring index, contains a single element: 0 for the shell, hole number for holes. The 'geom' field contains the corresponding ring as a polygon.
  • ST_EndPoint - Returns the last point of a LINESTRING geometry as a POINT.
  • ST_ExteriorRing - Returns a line string representing the exterior ring of the POLYGON geometry. Return NULL if the geometry is not a polygon. Will not work with MULTIPOLYGON
  • ST_ForceRHR - Forces the orientation of the vertices in a polygon to follow the Right-Hand-Rule.
  • ST_Force_3D - Forces the geometries into XYZ mode. This is an alias for ST_Force_3DZ.
  • ST_Force_3DZ - Forces the geometries into XYZ mode. This is a synonym for ST_Force_3D.
  • ST_Force_4D - Forces the geometries into XYZM mode.
  • ST_Force_Collection - Converts 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_GeometryN - Return the 1-based Nth geometry if the geometry is a GEOMETRYCOLLECTION, MULTIPOINT, MULTILINESTRING or MULTIPOLYGON. Otherwise, return NULL.
  • ST_HasArc - Returns true if a geometry or geometry collection contains a circular string
  • ST_InteriorRingN - Return the Nth interior linestring ring of the polygon geometry. Return NULL if the geometry is not a polygon or the given N is out of range.
  • ST_IsClosed - Returns TRUE if the LINESTRING's start and end points are coincident.
  • ST_IsSimple - Returns (TRUE) if this Geometry has no anomalous geometric points, such as self intersection or self tangency.
  • ST_Length3D - Returns the 3-dimensional or 2-dimensional length of the geometry if it is a linestring or multi-linestring.
  • ST_Length3D_Spheroid - Calculates the length of a geometry on an ellipsoid, taking the elevation into account. This is just an alias for ST_Length_Spheroid.
  • ST_Length_Spheroid - Calculates the 2D or 3D length of a linestring/multilinestring on an ellipsoid. This is useful if the coordinates of the geometry are in longitude/latitude and a length is desired without reprojection.
  • ST_LineFromMultiPoint - Creates a LineString from a MultiPoint geometry.
  • ST_LineToCurve - Converts a LINESTRING/POLYGON to a CIRCULARSTRING, CURVED POLYGON
  • ST_Line_Interpolate_Point - Returns a point interpolated along a line. Second argument is a float8 between 0 and 1 representing fraction of total length of linestring the point has to be located.
  • ST_Line_Substring - Return a linestring being a substring of the input one starting and ending at the given fractions of total 2d length. Second and third arguments are float8 values between 0 and 1.
  • ST_M - Return the M coordinate of the point, or NULL if not available. Input must be a point.
  • ST_MakeBox3D - Creates a BOX3D defined by the given 3d point geometries.
  • ST_MakeLine - Creates a Linestring from point geometries.
  • ST_MakePoint - Creates a 2d,3dz or 4d point geometry.
  • ST_MakePolygon - Creates a Polygon formed by the given shell. Input geometries must be closed LINESTRINGS.
  • ST_MemUnion - Same as ST_Union, only memory-friendly (uses less memory and more processor time).
  • ST_Mem_Size - Returns the amount of space (in bytes) the geometry takes.
  • ST_NDims - Returns coordinate dimension of the geometry as a small int. Values are: 2,3 or 4.
  • ST_NPoints - Return the number of points (vertexes) in a geometry.
  • ST_Perimeter3D - Returns the 3-dimensional perimeter of the geometry, if it is a polygon or multi-polygon.
  • ST_PointN - Return the Nth point in the first linestring or circular linestring in the geometry. Return NULL if there is no linestring in the geometry.
  • ST_Polygon - Returns a polygon built from the specified linestring and SRID.
  • ST_RemovePoint - Removes point from a linestring. Offset is 0-based.
  • ST_Rotate - This is a synonym for ST_RotateZ
  • ST_RotateX - Rotate a geometry rotRadians about the X axis.
  • ST_RotateY - Rotate a geometry rotRadians about the Y axis.
  • ST_RotateZ - Rotate a geometry rotRadians about the Z axis.
  • ST_Scale - Scales the geometry to a new size by multiplying the ordinates with the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor).
  • ST_SetPoint - Replace point N of linestring with given point. Index is 0-based.
  • ST_Shift_Longitude - Reads every point/vertex in every component of every feature in a geometry, and if the longitude coordinate is <0, adds 360 to it. The result would be a 0-360 version of the data to be plotted in a 180 centric map
  • ST_SnapToGrid - Snap all points of the input geometry to the grid defined by its origin and cell size. Remove consecutive points falling on the same cell, eventually returning NULL if output points are not enough to define a geometry of the given type. Collapsed geometries in a collection are stripped from it. Useful for reducing precision.
  • ST_StartPoint - Returns the first point of a LINESTRING geometry as a POINT.
  • ST_Summary - Returns a text summary of the contents of the ST_Geometry.
  • ST_SymDifference - Returns a geometry that represents the portions of A and B that do not intersect. It is called a symmetric difference because ST_SymDifference(A,B) = ST_SymDifference(B,A).
  • ST_TransScale - Translates the geometry using the deltaX and deltaY args, then scales it using the XFactor, YFactor args, working in 2D only.
  • ST_Translate - Translates the geometry to a new location using the numeric parameters as offsets. Ie: ST_Translate(geom, X, Y) or ST_Translate(geom, X, Y,Z).
  • ST_Union - Returns a geometry that represents the point set union of the Geometries.
  • ST_X - Return the X coordinate of the point, or NULL if not available. Input must be a point.
  • ST_XMax - Returns X maxima of a bounding box 2d or 3d or a geometry.
  • ST_XMin - Returns X minima of a bounding box 2d or 3d or a geometry.
  • ST_Y - Return the Y coordinate of the point, or NULL if not available. Input must be a point.
  • ST_YMax - Returns Y maxima of a bounding box 2d or 3d or a geometry.
  • ST_YMin - Returns Y minima of a bounding box 2d or 3d or a geometry.
  • ST_Z - Return the Z coordinate of the point, or NULL if not available. Input must be a point.
  • ST_ZMax - Returns Z minima of a bounding box 2d or 3d or a geometry.
  • ST_ZMin - Returns Z minima of a bounding box 2d or 3d or a geometry.
  • UpdateGeometrySRID - Updates the SRID of all features in a geometry column, geometry_columns metadata and srid table constraint

8.4. PostGIS Circular String Curve Support Functions

The functions given below are PostGIS functions that can use CIRCULARSTRING and CURVEDPOLYGON

  • AddGeometryColumn - Adds a geometry column to an existing table of attributes.
  • DropGeometryColumn - Removes a geometry column from a spatial table.
  • ST_Accum - Aggregate. Constructs an array of geometries.
  • ST_AddBBox - Add bounding box to the geometry.
  • ST_Affine - Applies a 3d affine transformation to the geometry to do things like translate, rotate, scale in one step.
  • ST_AsEWKB - Return the Well-Known Binary (WKB) 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_Box2D - Returns a BOX2D representing the maximum extents of the geometry.
  • ST_Box3D - Returns a BOX3D representing the maximum extents of the geometry.
  • ST_Collect - Return a specified ST_Geometry value from a collection of other geometries.
  • ST_CoordDim - Return the coordinate dimension of the ST_Geometry value.
  • ST_CurveToLine - Converts a CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON
  • ST_DropBBox - Drop the bounding box cache from the geometry.
  • ST_Dump - Returns a set of geometry_dump (geom,path) rows, that make up a geometry g1.
  • ST_Estimated_Extent - Return the 'estimated' extent of the given spatial table. The estimated is taken from the geometry column's statistics. The current schema will be used if not specified.
  • ST_Force_2D - Forces the geometries into a "2-dimensional mode" so that all output representations will only have the X and Y coordinates.
  • ST_Force_3D - Forces the geometries into XYZ mode. This is an alias for ST_Force_3DZ.
  • ST_Force_3DM - Forces the geometries into XYM mode.
  • ST_Force_3DZ - Forces the geometries into XYZ mode. This is a synonym for ST_Force_3D.
  • ST_Force_4D - Forces the geometries into XYZM mode.
  • ST_Force_Collection - Converts 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_GeomFromText - Return a specified ST_Geometry value from Well-Known Text representation (WKT).
  • ST_GeomFromWKB - Return a specified ST_Geometry value from Well-Known Binary representation (WKB) and optional srid.
  • ST_GeometryN - Return the 1-based Nth geometry if the geometry is a GEOMETRYCOLLECTION, MULTIPOINT, MULTILINESTRING or MULTIPOLYGON. Otherwise, return NULL.
  • ST_HasArc - Returns true if a geometry or geometry collection contains a circular string
  • ST_HasBBox - Returns TRUE if the bbox of this geometry is cached, FALSE otherwise.
  • ST_IsClosed - Returns TRUE if the LINESTRING's start and end points are coincident.
  • ST_IsEmpty - Returns true if this Geometry is an empty geometry . If true, then this Geometry represents the empty point set - i.e. GEOMETRYCOLLECTION(EMPTY).
  • ST_LineToCurve - Converts a LINESTRING/POLYGON to a CIRCULARSTRING, CURVED POLYGON
  • ST_Mem_Size - Returns the amount of space (in bytes) the geometry takes.
  • ST_NPoints - Return the number of points (vertexes) in a geometry.
  • ST_Rotate - This is a synonym for ST_RotateZ
  • ST_RotateZ - Rotate a geometry rotRadians about the Z axis.
  • ST_Scale - Scales the geometry to a new size by multiplying the ordinates with the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor).
  • ST_TransScale - Translates the geometry using the deltaX and deltaY args, then scales it using the XFactor, YFactor args, working in 2D only.
  • ST_Transform - Returns a new geometry with its coordinates transformed to the SRID referenced by the integer parameter.
  • ST_Translate - Translates the geometry to a new location using the numeric parameters as offsets. Ie: ST_Translate(geom, X, Y) or ST_Translate(geom, X, Y,Z).
  • ST_XMax - Returns X maxima of a bounding box 2d or 3d or a geometry.
  • ST_XMin - Returns X minima of a bounding box 2d or 3d or a geometry.
  • ST_YMax - Returns Y maxima of a bounding box 2d or 3d or a geometry.
  • ST_YMin - Returns Y minima of a bounding box 2d or 3d or a geometry.
  • ST_ZMax - Returns Z minima of a bounding box 2d or 3d or a geometry.
  • ST_ZMin - Returns Z minima of a bounding box 2d or 3d or a geometry.
  • UpdateGeometrySRID - Updates the SRID of all features in a geometry column, geometry_columns metadata and srid table constraint
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