Routines

args: g1, units_to_expand - Returns bounding box expanded in all directions from the bounding box of the input geometry. Uses double-precision

args: pointA, pointB - Returns the north-based azimuth as the angle in radians measured clockwise from the vertical on pointA to pointB.

args: g1 - Returns a geometry representing the double precision (float8) bounding box of the supplied geometry.

args: WKT, srid - Makes a collection Geometry from collection WKT with the given SRID. If SRID is not give, it defaults to -1.

args: geomA, geomB - Returns true if and only if no points of B lie in the exterior of A, and at least one point of the interior of B lies in the interior of A.

args: geomfield - an aggregate function that returns the box3D bounding box that bounds rows of geometries.

args: schema_name, table_name, column_name, srid, type, dimension, use_typmod=true - Adds a geometry column to an existing table of attributes. By default uses type modifier to define rather than constraints. Pass in false for use_typmod to get old check constraint based behavior

args: geomA - Returns ZM (dimension semantic) flag of the geometries as a small int. Values are: 0=2d, 1=3dm, 2=3dz, 3=4d.

args: a_polygon - 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.

created for pgwatch2

args: geomA - The convex hull of a geometry represents the minimum convex geometry that encloses all geometries within the set.

args: geomgml, srid - Takes as input GML representation of geometry and outputs a PostGIS geometry object

args: geomA - Returns TRUE if the bbox of this geometry is cached, FALSE otherwise.

args: geogpolyA, geogpointB - Returns 1 (TRUE) if no point in Geometry B is outside Geometry A

args: g1 - Return the Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

args: auth_token - Add an authorization token to be used in current transaction.

args: xmin, ymin, xmax, ymax, srid=unknown - Creates a rectangular Polygon formed from the given minimums and maximums. Input values must be in SRS specified by the SRID.

args: geom, maxdecimaldigits=15, options=0 - Return the geometry as a GeoJSON element.

args: g1 - Returns the spatial reference identifier for the ST_Geometry as defined in spatial_ref_sys table.

args: geom, srid - Sets the SRID on a geometry to a particular integer value.

args: geomjson - Takes as input a geojson representation of a geometry and outputs a PostGIS geometry object

args: schema_name, table_name - Drops a table and all its references in geometry_columns.

args: amultilinestring - Returns a (set of) LineString(s) formed by sewing together a MULTILINESTRING.

args: point3DLowLeftBottom, point3DUpRightTop - Creates a BOX3D defined by the given 3d point geometries.

args: aGeomorBox2DorBox3D - Returns Y maxima of a bounding box 2d or 3d or a geometry.

args: geomA - Returns the first point of a LINESTRING geometry as a POINT.

args: g - Returns TRUE if this LINESTRING is both closed and simple.

args: gg1, gg2, distance_meters, use_spheroid - Returns true if the geometries are within the specified distance of one another. For geometry units are in those of spatial reference and For geography units are in meters and measurement is defaulted to use_spheroid=true (measure around spheroid), for faster check, use_spheroid=false to measure along sphere.

args: linestring - Creates a Polygon formed by the given shell. Input geometries must be closed LINESTRINGS.

args: geom_mline, elevation_start, elevation_end - Return a derived geometry (collection) value with elements that intersect the specified range of elevations inclusively. Only 3D, 4D LINESTRINGS and MULTILINESTRINGS are supported.

args: geomA, geomB - Returns a geometry that represents that part of geometry A that does not intersect with geometry B.

args: geomA, XFactor, YFactor, ZFactor - Scales the geometry to a new size by multiplying the ordinates with the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor).

args: a_table_name, a_row_key, an_auth_token, expire_dt - Set lock/authorization for specific row in table

args: WKT, srid - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This is an alias name for ST_GeomFromText

args: g - Returns a text summary of the contents of the geometry.

args: geomA - Forces the geometries into XYZ mode. This is an alias for ST_Force_3DZ.

args: geomANoncircular - Converts a LINESTRING/POLYGON to a CIRCULARSTRING, CURVED POLYGON

args: geomA - Returns the type of the geometry as a string. Eg: LINESTRING, POLYGON, MULTIPOINT, etc.

Returns the version number of the PROJ4 library.

args: g1, radius_of_buffer, buffer_style_parameters - (T) For geometry: 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. For geography: Uses a planar transform wrapper. Introduced in 1.5 support for different end cap and mitre settings to control shape. buffer_style options: quad_segs=#,endcap=round|flat|square,join=round|mitre|bevel,mitre_limit=#.#

args: geoms_array - Creates a Linestring from point or line geometries.

args: g1 - Return the Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

args: g1, g2 - For geometry type Returns the 3-dimensional cartesian minimum distance (based on spatial ref) between two geometries in projected units.

args: geom, rel=0, maxdecimaldigits=15 - Returns a Geometry in SVG path data given a geometry or geography object.

args: g1, g2 - Returns TRUE if the supplied geometries have some, but not all, interior points in common.

args: x, y, m - Creates a point geometry with an x y and m coordinate.

args: WKB, srid - Makes a LINESTRING from WKB with the given SRID

args: geom - Returns a version of the given geometry with duplicated points removed.

args: geomA, pointOrigin, sizeX, sizeY, sizeZ, sizeM - Snap all points of the input geometry to a regular grid.

created for pgwatch2

args: geomA - Forces the geometries into XYZ mode. This is a synonym for ST_Force_3D.

args: table_name - Drops a table and all its references in geometry_columns.

args: curveGeom, segments_per_qtr_circle - Converts a CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON

args: geomA, rotRadians, x0, y0 - Rotate a geometry rotRadians counter-clockwise about an origin.

args: version, geog, maxdecimaldigits=15, nprefix=NULL - Return the geometry as a KML element. Several variants. Default version=2, default precision=15

args: g1 - Returns a set of geometry_dump (geom,path) rows, that make up a geometry g1.

created for pgwatch2

args: x, y - Creates a 2D,3DZ or 4D point geometry.

args: a_table_name, a_row_key, an_auth_token - Set lock/authorization for specific row in table

args: g1, g2 - Returns the 2-dimensional longest line points of two geometries. The function will only return the first longest line if more than one, that the function finds. The line returned will always start in g1 and end in g2. The length of the line this function returns will always be the same as st_maxdistance returns for g1 and g2.

Gets the summary of the day for ECM data

args: g1, deltax, deltay, deltaz - 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).

args: a_linestring, n - Return the Nth point in a linestring or circular linestring in the geometry. Return NULL if geometry is not a linestring or circular linestring

created for pgwatch2

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

args: geom - Like ST_Union, but working at the geometry component level.

args: geomA - Converts the geometry into a GEOMETRYCOLLECTION.

args: g - The inherent dimension of this Geometry object, which must be less than or equal to the coordinate dimension.

args: g1, radius_of_buffer, num_seg_quarter_circle - (T) For geometry: 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. For geography: Uses a planar transform wrapper. Introduced in 1.5 support for different end cap and mitre settings to control shape. buffer_style options: quad_segs=#,endcap=round|flat|square,join=round|mitre|bevel,mitre_limit=#.#

args: linestring, point, position - Adds a point to a LineString before point (0-based index).

args: geomA, XFactor, YFactor - Scales the geometry to a new size by multiplying the ordinates with the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor).

args: g1 - Returns the geometry with vertex order reversed.

args: WKT - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This is an alias name for ST_GeomFromText

args: g1_array - Returns a geometry that represents the point set union of the Geometries.

args: geomA, geomB, BoundaryNodeRule - 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 intersectionMatrixPattern. If no intersectionMatrixPattern is passed in, then returns the maximum intersectionMatrixPattern that relates the 2 geometries.

args: WKT - Makes a point Geometry from WKT with the given SRID. If SRID is not given, it defaults to unknown.

args: ageom_with_measure, a_measure, offset - Return a derived geometry collection value with elements that match the specified measure. Polygonal elements are not supported.

args: relation_oid, use_typmod=true - Ensures geometry columns are defined with type modifiers or have appropriate spatial constraints This ensures they will be registered correctly in geometry_columns view. By default will convert all geometry columns with no type modifier to ones with type modifiers. To get old behavior set use_typmod=false

args: a_point, center_x, center_y, radius - Is the point geometry insert circle defined by center_x, center_y, radius

args: A, B - Returns true if the given geometries represent the same geometry. Directionality is ignored.

args: WKT - Makes a MultiPolygon Geometry from WKT with the given SRID. If SRID is not give, it defaults to -1.

args: g1 - Return the length measurement of the boundary of an ST_Surface or ST_MultiSurface geometry or geography. (Polygon, Multipolygon). geometry measurement is in units of spatial reference and geography is in meters.

args: g1, g2, distance_of_srid - Returns true if the geometries are within the specified distance of one another. For geometry units are in those of spatial reference and For geography units are in meters and measurement is defaulted to use_spheroid=true (measure around spheroid), for faster check, use_spheroid=false to measure along sphere.

args: g1, g2, densifyFrac - Returns the Hausdorff distance between two geometries. Basically a measure of how similar or dissimilar 2 geometries are. Units are in the units of the spatial reference system of the geometries.

args: WKB, srid - Makes a geometry from WKB with the given SRID.

created for pgwatch2

args: linestring, point - Adds a point to a LineString before point (0-based index).

args: g - Returns TRUE if the argument is a collection (MULTI*, GEOMETRYCOLLECTION, …)

boolean operation with array

args: WKT - Makes a Geometry from WKT with the given SRID. If SRID is not give, it defaults to -1.

args: linestring, offset - Removes point from a linestring. Offset is 0-based.

args: g1, g2 - For geometry type Returns the 2-dimensional cartesian minimum distance (based on spatial ref) between two geometries in projected units. For geography type defaults to return spheroidal minimum distance between two geographies in meters.

args: a_polygon, n - 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.

args: geomA, geomB, intersectionMatrixPattern - 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 intersectionMatrixPattern. If no intersectionMatrixPattern is passed in, then returns the maximum intersectionMatrixPattern that relates the 2 geometries.

args: g1, radius_of_buffer_in_meters - (T) For geometry: 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. For geography: Uses a planar transform wrapper. Introduced in 1.5 support for different end cap and mitre settings to control shape. buffer_style options: quad_segs=#,endcap=round|flat|square,join=round|mitre|bevel,mitre_limit=#.#

args: geom, maxdecimaldigits=15, options=0 - Return the geometry as a GML version 2 or 3 element.

args: g1, g2 - Returns the Hausdorff distance between two geometries. Basically a measure of how similar or dissimilar 2 geometries are. Units are in the units of the spatial reference system of the geometries.

args: lineal1, lineal2 - Returns a collection containing paths shared by the two input linestrings/multilinestrings.

args: g1 - Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata.

Returns the version number of the libxml2 library.

args: g1 - Returns the geometric center of a geometry.

args: a_linestring, a_point - Returns a float between 0 and 1 representing the location of the closest point on LineString to the given Point, as a fraction of total 2d line length.

Returns build date of the PostGIS library.

args: aGeomorBox2DorBox3D - Returns Z minima of a bounding box 2d or 3d or a geometry.

Returns the version number of the GEOS library.

Returns version of the postgis scripts installed in this database.

created for pgwatch2

same as

args: g1, units_to_expand - Returns bounding box expanded in all directions from the bounding box of the input geometry. Uses double-precision

args: g - Forces the orientation of the vertices in a polygon to follow the Right-Hand-Rule.

args: g1, g2, distance - Returns true if all of the 3D geometries are within the specified distance of one another.

args: geomA - Returns (TRUE) if this Geometry has no anomalous geometric points, such as self intersection or self tangency.

args: A, B - Returns TRUE if the Geometries do not “spatially intersect” - if they do not share any space together.

args: g1 - Return the Well-Known Binary (WKB) representation of the geometry with SRID meta data.

args: curveGeom - Converts a CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON

args: WKT, srid - Construct a MultiPolygon given an arbitrary collection of closed linestrings as a MultiLineString text representation Well-Known text representation.

args: geom, maxchars=full_precision_of_point - Return a GeoHash representation (geohash.org) of the geometry.

args: WKT, srid - Makes a MultiPolygon Geometry from WKT with the given SRID. If SRID is not give, it defaults to -1.

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

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

args: g1, g2 - Returns the 2-dimensional point on g1 that is closest to g2. This is the first point of the shortest line.

args: g1, g2 - Returns TRUE if the geometries have at least one point in common, but their interiors do not intersect.

args: g1, g2, distance - Returns true if all of the geometries are within the specified distance of one another

args: geomA, a, b, d, e, xoff, yoff - Applies a 3d affine transformation to the geometry to do things like translate, rotate, scale in one step.

created for pgwatch2

args: geog, use_spheroid=true - Return the length measurement of the boundary of an ST_Surface or ST_MultiSurface geometry or geography. (Polygon, Multipolygon). geometry measurement is in units of spatial reference and geography is in meters.

args: geog, use_spheroid=true - Returns the 2d length of the geometry if it is a linestring or multilinestring. geometry are in units of spatial reference and geography are in meters (default spheroid)

args: g1, units_to_expand - Returns bounding box expanded in all directions from the bounding box of the input geometry. Uses double-precision

created for pgwatch2

args: x_lon, y_lat - Returns an ST_Point with the given coordinate values. OGC alias for ST_MakePoint.

args: geomA - Returns the closure of the combinatorial boundary of this Geometry.

args: geomfield - Same as ST_Union, only memory-friendly (uses less memory and more processor time).

args: geom - Node a set of linestrings.

args: input, blade - Returns a collection of geometries resulting by splitting a geometry.

args: geomA - Add bounding box to the geometry.

args: g1, g2 - Returns the 3-dimensional longest line between two geometries

Enable long transaction support. This function creates the required metadata tables, needs to be called once before using the other functions in this section. Calling it twice is harmless.

args: geom - If geometry is a GEOMETRYCOLLECTION (or MULTI*) return the number of geometries, for single geometries will return 1, otherwise return NULL.

args: g1, g2 - For geometry type Returns the 3-dimensional cartesian maximum distance (based on spatial ref) between two geometries in projected units.

args: g1 - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

different

args: g1 - Returns a Geometry in HEXEWKB format (as text) using either little-endian (NDR) or big-endian (XDR) encoding.

args: geom - Makes a geometry from WKB with the given SRID

args: geom_mline, measure_start, measure_end - Return a derived geometry with measure elements linearly interpolated between the start and end points. If the geometry has no measure dimension, one is added. If the geometry has a measure dimension, it is over-written with new values. Only LINESTRINGS and MULTILINESTRINGS are supported.

args: geomA, max_length - Return a modified geometry having no segment longer than the given distance. Distance computation is performed in 2d only.

args: g1, NDRorXDR - Returns a Geometry in HEXEWKB format (as text) using either little-endian (NDR) or big-endian (XDR) encoding.

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

args: geomA - Return the coordinate dimension of the ST_Geometry value.

args: geom, maxdecimaldigits=15 - Return the geometry as a KML element. Several variants. Default version=2, default precision=15

args: geomA, geomB - 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).

args: version, geom, maxdecimaldigits=15, nprefix=NULL - Return the geometry as a KML element. Several variants. Default version=2, default precision=15

args: A - Creates an areal geometry formed by the constituent linework of given geometry

args: a_linestring, a_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.

args: g1 - Return the Well-Known Text (WKT) representation of the geometry/geography without SRID metadata.

args: geomA, rotRadians - Rotate a geometry rotRadians counter-clockwise about an origin.

args: geomA - Forces the geometries into XYZM mode.

args: a_point - Return the M coordinate of the point, or NULL if not available. Input must be a point.

args: a_linestring, a_fraction - 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.

args: geomA, target_percent, allow_holes=false - The concave hull of a geometry represents a possibly concave geometry that encloses all geometries within the set. You can think of it as shrink wrapping.

args: input, reference, tolerance - Snap segments and vertices of input geometry to vertices of a reference geometry.

args: a_linestring, startfraction, endfraction - 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.

args: a_schema_name, a_table_name, a_row_key, an_auth_token, expire_dt - Set lock/authorization for specific row in table

args: geomA, originX, originY, sizeX, sizeY - Snap all points of the input geometry to a regular grid.

args: geomA - Returns the 3-dimensional perimeter of the geometry, if it is a polygon or multi-polygon.

args: g1, NDR_or_XDR - Return the Well-Known Binary (WKB) representation of the geometry/geography without SRID meta data.

args: WKT, srid - Return a specified ST_MultiLineString value from WKT representation.

args: a_point - Return the Z coordinate of the point, or NULL if not available. Input must be a point.

Returns build date of the PostGIS scripts.

args: geog, use_spheroid=true - Returns the area of the surface if it is a polygon or multi-polygon. For “geometry” type area is in SRID units. For “geography” area is in square meters.

created for pgwatch2

args: auth_token - Remove all locks held by specified authorization id. Returns the number of locks released.

args: g1 - Return the Well-Known Text (WKT) representation of the geometry with SRID meta data.

args: table_name, column_name, srid, type, dimension, use_typmod=true - Adds a geometry column to an existing table of attributes. By default uses type modifier to define rather than constraints. Pass in false for use_typmod to get old check constraint based behavior

args: WKT, srid - Return a specified ST_Geometry value from Well-Known Text representation (WKT).

args: geomA - Returns true if a geometry or geometry collection contains a circular string

args: linestring, zerobasedposition, point - Replace point N of linestring with given point. Index is 0-based.

args: WKT, srid - Makes a Geometry from WKT with the given SRID. If SRID is not give, it defaults to -1.

args: g1, g2 - Returns the 2-dimensional largest distance between two geometries in projected units.

args: geom, srid - Makes a geometry from WKB with the given SRID

args: A, B - Returns true if the geometry A is completely inside geometry B

args: gg1, gg2 - For geometry type Returns the 2-dimensional cartesian minimum distance (based on spatial ref) between two geometries in projected units. For geography type defaults to return spheroidal minimum distance between two geographies in meters.

args: geomkml - Takes as input KML representation of geometry and outputs a PostGIS geometry object

args: geomlonlatA, geomlonlatB, measurement_spheroid - Returns the minimum distance between two lon/lat geometries given a particular spheroid. PostGIS versions prior to 1.5 only support points.

args: g - Returns a text summary of the contents of the geometry.

args: g1 - Return the number of faces on a Polyhedral Surface. Will return null for non-polyhedral geometries.

args: g1, deltax, deltay - 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).

args: collection - Given a geometry collection, returns the “simplest” representation of the contents.

args: g1 - Returns the area of the surface if it is a polygon or multi-polygon. For “geometry” type area is in SRID units. For “geography” area is in square meters.

args: geogA, geogB - Returns 1 (TRUE) if no point in Geometry/Geography A is outside Geometry/Geography B

args: geoms - Creates a Linestring from point or line geometries.

args: geomA, num_segs_per_qt_circ=48 - Returns the smallest circle polygon that can fully contain a geometry. Default uses 48 segments per quarter circle.

args: geom - Returns a set of geometry_dump (geom,path) rows of all points that make up a geometry.

args: g1, srid - Returns a new geometry with its coordinates transformed to the SRID referenced by the integer parameter.

args: g, flags - Returns true if the ST_Geometry is well formed.

args: geogA, geogB - Returns TRUE if the Geometries/Geography “spatially intersect in 2D” - (share any portion of space) and FALSE if they dont (they are Disjoint). For geography – tolerance is 0.00001 meters (so any points that close are considered to intersect)

args: a_2dlinestring - Returns the 2-dimensional length of the geometry if it is a linestring or multi-linestring. This is an alias for ST_Length

Reports full postgis version and build configuration infos.

args: catalog_name, schema_name, table_name, column_name - Removes a geometry column from a spatial table.

args: use_typmod=true - Ensures geometry columns are defined with type modifiers or have appropriate spatial constraints This ensures they will be registered correctly in geometry_columns view. By default will convert all geometry columns with no type modifier to ones with type modifiers. To get old behavior set use_typmod=false

args: a_3dlinestring - Returns the 3-dimensional or 2-dimensional length of the geometry if it is a linestring or multi-linestring.

args: schema_name, table_name, column_name - Removes a geometry column from a spatial table.

args: table_name, geocolumn_name - Return the estimated extent of the given spatial table. The estimated is taken from the geometry columns statistics. The current schema will be used if not specified.

args: table_name, column_name, srid - Updates the SRID of all features in a geometry column, geometry_columns metadata and srid. If it was enforced with constraints, the constraints will be updated with new srid constraint. If the old was enforced by type definition, the type definition will be changed.

args: g - Returns TRUE if the LINESTRINGs start and end points are coincident. For Polyhedral surface is closed (volumetric).

args: WKT - Makes a collection Geometry from collection WKT with the given SRID. If SRID is not give, it defaults to -1.

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

args: g - Returns the last point of a LINESTRING geometry as a POINT.

args: collection, type - Given a (multi)geometry, returns a (multi)geometry consisting only of elements of the specified type.

args: g1 - Return the geometry type of the ST_Geometry value.

args: A, B - Returns true if the given geometries represent the same geometry and points are in the same directional order.

args: geomA, rotRadians - Rotate a geometry rotRadians about the Z axis.

args: geomfield - an aggregate function that returns the bounding box that bounds rows of geometries.

args: gg1, gg2, use_spheroid - For geometry type Returns the 2-dimensional cartesian minimum distance (based on spatial ref) between two geometries in projected units. For geography type defaults to return spheroidal minimum distance between two geographies in meters.

args: aGeomorBox2DorBox3D - Returns X maxima of a bounding box 2d or 3d or a geometry.

args: a_schema_name, a_table_name, a_key_column_name - Creates trigger on a table to prevent/allow updates and deletes of rows based on authorization token.

args: pointA, pointB - Returns the north-based azimuth as the angle in radians measured clockwise from the vertical on pointA to pointB.

args: g1, g2 - Returns the 3-dimensional shortest line between two geometries

args: g1 - Return the number of points (vertexes) in a geometry.

args: g1_array - Return a specified ST_Geometry value from a collection of other geometries.

args: geomA, flags - Returns text stating if a geometry is valid or not and if not valid, a reason why.

args: geom - Returns a version of the given geometry with X and Y axis flipped. Useful for people who have built latitude/longitude features and need to fix them.

args: geomA, tolerance - Returns a “simplified” version of the given geometry using the Douglas-Peucker algorithm.

args: g1 - Returns coordinate dimension of the geometry as a small int. Values are: 2,3 or 4.

args: geomA - Returns a BOX3D representing the maximum extents of the geometry.

contained in

args: g1, g2 - Return a specified ST_Geometry value from a collection of other geometries.

args: geomA, geomB - Returns TRUE if the Geometries “spatially intersect” in 3d - only for points and linestrings

args: geomA, measure_start, measure_end, offset - Return a derived geometry collection value with elements that match the specified range of measures inclusively. Polygonal elements are not supported.

args: geomA - Forces the geometries into XYM mode.

args: geomA, geomB - (T) Returns a geometry that represents the shared portion of geomA and geomB. The geography implementation does a transform to geometry to do the intersection and then transform back to WGS84.

args: g1, g2, distance_of_srid - For 3d (z) geometry type Returns true if two geometries 3d distance is within number of units.

args: gj_version, geom, maxdecimaldigits=15, options=0 - Return the geometry as a GeoJSON element.

args: geomA, a, b, c, d, e, f, g, h, i, xoff, yoff, zoff - Applies a 3d affine transformation to the geometry to do things like translate, rotate, scale in one step.

args: x, y, z - Creates a 2D,3DZ or 4D point geometry.

args: pointLowLeft, pointUpRight - Creates a BOX2D defined by the given point geometries.

args: WKT - Return a specified ST_MultiLineString value from WKT representation.

args: a_polygon - Return the number of interior rings of the first polygon in the geometry. Synonym to ST_NumInteriorRings.

args: geomA, rotRadians - Rotate a geometry rotRadians about the X axis.

args: g1field - Returns a geometry that represents the point set union of the Geometries.

args: a_polygon - 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

args: geomA, n - Return the 1-based Nth geometry (face) if the geometry is a POLYHEDRALSURFACE, POLYHEDRALSURFACEM. Otherwise, return NULL.

args: geomfield - Aggregate. Constructs an array of geometries.

args: geom1, geom2 - Creates a Linestring from point or line geometries.

boolean operation with array

args: geomA - Forces the geometries into a “2-dimensional mode” so that all output representations will only have the X and Y coordinates.

args: gg1, gg2, distance_meters - Returns true if the geometries are within the specified distance of one another. For geometry units are in those of spatial reference and For geography units are in meters and measurement is defaulted to use_spheroid=true (measure around spheroid), for faster check, use_spheroid=false to measure along sphere.

args: geomA - Returns text stating if a geometry is valid or not and if not valid, a reason why.

args: geomA - 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

args: WKT, srid - Construct a Polygon given an arbitrary collection of closed linestrings as a MultiLineString Well-Known text representation.

args: geomA, geomB - Returns true if B intersects the interior of A but not the boundary (or exterior). A does not contain properly itself, but does contain itself.

args: geomA - Drop the bounding box cache from the geometry.

args: gj_version, geog, maxdecimaldigits=15, options=0 - Return the geometry as a GeoJSON element.

args: pt, format - Return the Degrees, Minutes, Seconds representation of the given point.

created for pgwatch2

args: geog, maxdecimaldigits=15, options=0 - Return the geometry as a GML version 2 or 3 element.

args: intersectionMatrix, intersectionMatrixPattern - Returns true if intersectionMattrixPattern1 implies intersectionMatrixPattern2

args: WKT - Return a specified ST_Geometry value from Well-Known Text representation (WKT). This is an alias name for ST_GeomFromText

args: geom_array - Aggregate. Creates a GeometryCollection containing possible polygons formed from the constituent linework of a set of geometries.