DuckDB geo extension

This extension will provide a GEO type for DuckDB and enable basic GIS data analysis in it. It is currently a work-in-progress. It only support geography types and operations.

Installation

Actually the geo is build with the version v0.6.2-dev1218.

Be sure to have a compiler and git client installed.

Clone into a folder.

$ git clone ...
$ cd geo

Build it with the command make

At the end of compilation you should have a new build directory present.

$ ls
CMakeLists.txt README.md      duckdb         geo
Makefile       build          examples       test

Copy the geo duckdb extension to the extensions directory of DuckDB.

cp build/release/extension/geo/geo.duckdb_extension ~/.duckdb/extensions/e2dfc274b0/osx_arm64

note : adapt to your OS and duckdb build

Usage with DuckDB

CLI

Launch duckdb with unsigned parameter.

duckdb -unsigned
v0.6.2-dev1218 e2dfc274b0
Enter ".help" for usage hints.
D LOAD geo;
D SELECT ST_MAKEPOINT(52.347113,4.869454);
┌────────────────────────────────────────────┐
│     st_makepoint(52.347113, 4.869454)      │
│                 geography                  │
├────────────────────────────────────────────┤
│ 01010000001B82E3326E2C4A406B813D26527A1340 │

Python

Install the master version of DuckDB.

$ python
>>> import duckdb

>>> con = duckdb.connect(config={'allow_unsigned_extensions' : 'true'})
>>> con.load('geo')
>>> result = con.execute("SELECT ST_MAKEPOINT(52.347113,4.869454);")
>>> print(result.fetchall())
[(b'\x01\x01\x00\x00\x00\x1b\x82\xe32n,J@k\x81=&Rz\x13@',)]

Supported functions

Constructors (3)

Formatters (4)

Parsers (5)

Accessors (15):

Transformations (10):

Predicates (9)

Measures (9):

Other (1)

ST_CLUSTERDBSCAN

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