pgNetworkflow: A C/C++ extension of PostgreSQL for solving the (Minimum Cost) Network Flow problem to support geospatial data conflation as described in the following article:

Lei, T.L. (2020, in press). Geospatial data conflation: a formal approach based on optimization and relational databases. International Journal of Geographical Information Science.

Copyright (c) 2020 Ting Lei (leiting@gmail.com).

Detail

C++ solver for minimum cost flow and its SQL wrappers

Directories

src/ all code and make files.

Install instructions

The extension has been only tested under Ubuntu 18.04 with default C++ compilers. It should also work with other Linux distributions/OSes with standard compiliant compilers. It has the LEMON Graph library (https://lemon.cs.elte.hu/trac/lemon/) as its dependency. Under Ubuntu 18.04, it can be installed with

sudo apt-get install liblemon-dev

To compile and install the extension under Ubuntu:

sudo make with_llvm=no -C src/ clean && make with_llvm=no -C src/ && sudo make with_llvm=no -C src/ install

Then, execute the following PostgreSQL statement as a database superuser:

CREATE EXTENSION pgnetworkflow; 

License

pgNetworkflow is released under the Mulan PSL v2 License.