pgsql2shp(1)                        PostGIS                       pgsql2shp(1)



NAME
       pgsql2shp - postgis to shapefile dumper


SYNTAX
       pgsql2shp [options] database [schema.]table
       pgsql2shp [options] database query


DESCRIPTION
       The pgsql2shp table dumper connects directly to the database and
       converts a table (possibly created by user query) into a shape file. It
       is compatible with all versions of PostGIS.

       Version: 1.1.5 (2006/10/06)


USAGE
       The <database> is the name of the database to connect to.

       The <table> is the (optionally schema-qualified) table to read spatial
       data from. Alternatively, you can specify a QUERY whose result will be
       written into the shapefile.


OPTIONS
       The commandline options are:

       -f <filename>
              Write the output to a particular filename.

       -h <host>
              The database host to connect to.

       -p <port>
              The port to connect to on the database host.

       -P <password>
              The password to use when connecting to the database.

       -u <user>
              The username to use when connecting to the database.

       -g <geometry column>
              In the case of tables with multiple geometry columns, the
              geometry column to use when writing the shape file.

       -b     Use a binary cursor. When used on pre-1.0.0 PostGIS versions
              this will reduce the likelihood of coordinate drift due to
              conversion to and from WKT format. Coordinate drifts will not
              occur with PostGIS 1.0.0 and newer versions. It will be slightly
              faster, but might fail if any NON-gemetry column lacks a cast to
              text.

       -r     Raw mode. Do not drop the gid field, or escape column names.

       -d     For backward compatibility: write a 3-dimensional shape file
              when dumping from old (pre-1.0.0) postgis databases (the default
              is to write a 2-dimensional shape file in that case). Starting
              from postgis-1.0.0+, dimensions are fully encoded.

       -k     Keep idendifiers case (don't uppercase field names).

       -?     Display version and usage information.


INSTALLATION
       To compile the program from source, simply run "make" in the source
       directory.  Then copy the binary in your shell search path (or wherever
       you like). This text is also available as a man page in the ../doc/man/
       directory, ready for copying it into the manual search path on unixoid
       systems.


EXAMPLES
       An example session using the dumper to create shape file from a
       database might look like this:

       # pgsql2shp -f myfile -p 5555 my_db roads_table


AUTHORS
       Originally written by Jeff Lounsbury <jeffloun@refractions.net>.
       Improved and maintained by Sandro Santilli <strk@refractions.net>.
       Includes small contributions and improvements by others.

       This application uses functionality from shapelib 1.2.9 by Frank
       Warmerdam <warmerda@gdal.velocet.ca> to write to ESRI Shape files.


SEE ALSO
       shp2pgsql(1)

       More information is available at http://postgis.refractions.net



                                                                  pgsql2shp(1)
