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PostGIS 1.0.0
2005/01/13
- New Things
- Objects are all now "lightweight" with a smaller disk
and index representation. Large databases should see a moderate
to large performance increase.
- Objects now have a hexidecimal canonical representation.
To see a "user friendly" version of the objects use the
AsText() function.
- The loader and dumper use the hexidecimal canonical representation,
so coordinate drift due to floating point string parsing is now
eliminated.
- New functions: UpdateGeometrySRID(), AsGML(), SnapToGrid(),
ForceRHR(), estimated_extent(), Accum().
- Vertical positioning operators.
- Geometry constructors/editors.
- Coordinate dimensions handling (up to 4d).
- API.
- Join selectivity.
- Bug Fixes
- Numerous small fixes.
PostGIS 0.9.0
2004/09/10
- New Things
- GEOMETRY_COLUMNS management functions
- fix_geometry_columns(), probe_geometry_columns()
- Support for PgSQL 8.0 / Support for Win32
- Support for GEOS 2.0
- Bug Fixes
- Schema support in shp2pgsql/pgsql2shp improved
- Spatial index estimator improved
- Build system streamlined
PostGIS 0.8.2
2004/05/27
- New Things
- PgSQL 7.5 Support
- Integrated PgSQL 7.5 statistics rathering
- Improved schema support
- Optional experimental lightweight geometries (LWGEOM)
- Faster performance
- Lower disk usage
- Multi() function to create MULTI* geometries
- line_interpolate_point() function for linear referencing
- Bug Fixes
- Minor memory leaks gone
- Solaris support cleaner
- shp2pgsql/pgsql2shp more corner cases fixed
PostGIS 0.8.1
2004/01/12
- New Things
- Schema support in AddGeometryColumn and loader/dumper
- Bug Fixes
- Memory fixes
- GEOS translation fixes
PostGIS 0.8.0
2003/11/24
- New Things
- Support for PostgreSQL 7.4
- Support for all OpenGIS SFSQL functions (requires GEOS)
- Contains()
- Within()
- GeomUnion()
- Intersection()
- Buffer()
- and many more...!
- Includes OpenGIS conformance tests
- Passes all OpenGIS conformance tests
- Spatial aggregate functions
- GeomUnion()
- Collect()
- Bug Fixes
- shp2pgsql/pgsql2shp
- Numerous special cases in rings and
attributes repaired
- Some OpenGIS conformance changes
PostGIS 0.7.5
2003/04/08
- Bug Fixes
- shp2pgsql
- Z coordinate handling
- M coordinate handling
- Ring handling fixed in some cases
- Support for large numbers in attribute tables
- Some obscure operators fixed
- Some cygwin build improvements
PostGIS 0.7.4
2003/02/12
- Bug Fixes
- Several shp2pgsql enhancements and bugs.
- Cleaner compile, fewer warnings.
- Better undef support.
- Fixed stateplane/feet proj definitions.
- New Things
- Support for PostgreSQL 7.3
- Optional spatial index selectivity system
PostGIS 0.7.3
2002/09/05
- Bug Fixes
- Stupid bug in .sql install script breaks install for
many. Squashed. New release needed.
- Automatic version detection for appropriate GiST bindings
- postgis_transform now supports box3d types as well as geometry
PostGIS 0.7.2
2002/09/01
- Bug Fixes
- Numerous subtle bugs fixed in pgsql2shp and shp2pgsql DBF and
SHP file handling
- Some pgsql 7.3 preparations
- Patch to truly_inside() corner case
- Updates to the ~ and @ operators
- Update to translate() function to also translate bbox
PostGIS 0.7.1
2002/05/14
- Bug Fixes
- PgSQL 7.2 RTree-over-GIST bug fix. Rare data cases
caused index building to fail.
- Carriage returns removed from source code. Were
causing compilation failures.
- collect() now returns simplest homogeneous type
being aggregated (e.g.M ULTIPOLYGON for collect(*POLYGON))
PostGIS 0.7.0
2002/05/04
- New Things
- transform() function provides coordinate reprojection
using proj4 library
- spatial_ref_sys.sql has a complete set of proj4
definitions for each EPSG coordinate system
- support for PostgreSQL 7.2 GiST index API
- refactoring of source code to separate index support
functions from other functions
- max_distance() function
- distance_spheroid() function
- collect() aggregate function
- xmin(),ymin(),zmin(),xmax(),ymax(),zmax() functions
- Bug Fixes
- transform() more graceful when grid shifts are missing
- setsrid() made cachable
- patches to loader/dumper
PostGIS 0.6.2
2001/11/07
- New Things
- spatial_ref_sys.sql complete set of SRID and WKT
- generate postgis_undef.sql automatically at build
- Bug fixes
- Memory problem in shp2pgsql
- Compilation problems with shp2pgsql
PostGIS 0.6.1
2001/10/15
- Bug fixes
- Cygwin compilation fix
- Improved getopts handling in utility programs
- Text casting fixes
PostGIS 0.6
2001/09/19
- New functions
- postgis_version()
Return the PostGIS version number.
- find_srid(<db/schema>::varchar, <table>::varchar, <column>::varchar)
Return the SRID number for a particular column of a database.
- AddGeometryColumn(<db/schema>::varchar, <table>::varchar,
<column>::varchar, <srid>::integer, <type>::varchar,
<dimension>::integer)
Appends a geometry column to an existing table and updates the
metadata tables appropriately.
- DropGeometryColumn(<db/schema>::varchar, <table>::varchar,
<column>::varchar)
Removes a geometry column from an existing spatial table.
- Distance(<geom1>::geometry, <geom2>::geometry)
Returns the cartesian distance between two geometries.
- AsText(<geom>::geometry)
Returns the OGC well-known text version of the geometry.
- SRID(<geom>::geometry)
Returns the integer SRID of the geometry.
- GeometryFromText(<geom>::varchar, <srid>::integer)
Creates a geometry object given the OGC well-known text and a valid
SRID.
- SetSRID(<geom>::geometry)
Sets the SRID of a geometry to a particular value.
- IsClosed(<geom>::geometry)
Returns true of first and last points of geometry are coincident.
- StartPoint(<geom>::geometry)
Returns the first point of a geometry.
- EndPoint(<geom>::geometry)
Returns the last point of a geometry.
- Centroid(<geom>::geometry)
Returns the centroid of a geometry.
- More OpenGIS SFSQL compatibility
- SPATIAL_REF_SYS table
- GEOMETRY_COLUMNS table
- SRID integrity checking
- Better Mapserver compatibility
- Minor fixes/changes
- Support for WKB in the tables
- Miscellaneous bug fixes
- Placeholders for precision grid
PostGIS 0.5
2001/07/20
- New functions
- Dimension()
- GeometryType()
- Envelope()
- X(), Y(), Z()
- NumPoints()
- PointN()
- ExteriorRing()
- NumInteriorRings()
- InteriorRingN()
- NumGeometries()
- GeometryN()
- Length_Spheroid()
- Length3D_Spheroid()
- AsBinary() + XDR and NDR variants
- force_collection()
- Removed functions
- wkb_ndr()
- wkb_xdr()
- New Objects
- SPHEROID(<NAME>,<SEMIMAJOR AXIS>,<INVERSE FLATTENING>)
To be used with the length_spheroid functions for accurate
length calculations on lat/lon data.
- Minor bug fixes
- Internal Functions
- Extra constructors to make geometry manipulation easier
- Structural Reorganization
- Broke postgis.c up into four new files
postgis_debug.c -- debugging functions
postgis_fn.c -- generic functions (like length())
postgis_ops.c -- operators and indexing functions
postgis_inout.c -- type support functions and data conversion functions
PostGIS 0.2
2001/06/19
- New functions
- extent()
- force_2d()
- force_3d()
- wkb_xdr()
- wkb_ndr()
- translate()
- Fixes
- Cygwin compilation (Norman Vine)
- i386 byte alignment fixed
- 'VACUUM ANALYZE' fixed
- Other
- documentation in docbook xml
- example program for WKB access
- removed 'make test' until we can get regression
working more cleanly
PostGIS 0.1
2001/05/25
- Initial release!
- 'geometry' and 'box3d' types.
- Parsing routines for all possible geometries in OGIS text format
(POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON,
GEOMETRYCOLLECTION).
- Output routines for all possible geometries in OGIS text format.
- area2d(), area3d()
- length3d(), length3d()
- perimeter2d(), perimeter3d()
- truely_inside()
- rtree index support functions
- gist index support functions