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The MonetDB Database System

The MonetDB database was originally developed by the CWI database research group (see Development has now shifted to the spin-off company MonetDB Solutions.

Via the MonetDB project we have brought the MonetDB system in open source, where it is accessible at Even though development happens mostly in a company, the MonetDB database system will remain open source. It is available under the Mozilla Public License 2.0.

The MonetDB database system is a high-performance database kernel for query-intensive applications. The MonetDB source can be found at our Mercurial server. There is also a `github mirror`__ that is updated once an hour.


MonetDB is built using the cmake program. It is recommended to build in a directory that is not inside the source tree. In order to build, use the following commands when inside your build directory:

cmake [options] /path/to/monetdb/source
cmake --build .
cmake --build . --target install

In order to install into a different directory than the default /usr/local, add the option -DCMAKE_INSTALL_PREFIX:

cmake -DCMAKE_INSTALL_PREFIX=/path/to/install/monetdb /path/to/monetdb/source
cmake --build .
cmake --build . --target install

Build Options

There are many options that can be used to select how MonetDB is to be built. Options can be turned ON or OFF using a -D flag on the first of the cmake command lines. Except when specified otherwise, options are ON when the relevant libraries can be found. Available options are:

Option Explanation
ASSERT Enable asserts (default=ON for development sources, OFF for tarball installation)
CINTEGRATION Enable support for C UDFs (default=ON except on Windows)
CMAKE_SUMMARY Show a summary of the cmake configuration (for debug purposes, default=OFF)
CMAKE_UNITTEST Build and run the unittest for the build system (default=OFF)
FITS Enable support for FITS
GEOM Enable support for geom module
INT128 Enable support for 128-bit integers
NETCDF Enable support for netcdf
ODBC Compile the MonetDB ODBC driver
PY3INTEGRATION Enable support for Python 3 integration into MonetDB
RINTEGRATION Enable support for R integration into MonetDB
SANITIZER Enable support for the GCC address sanitizer (default=OFF)
SHP Enable support for ESRI Shapefiles
STRICT Enable strict compiler flags (default=ON for development sources, OFF for tarball installation)
TESTING Enable support for testing
WITH_BZ2 Include bz2 support
WITH_CMOCKA Include cmocka support (default=OFF)
WITH_CURL Include curl support
WITH_LZMA Include lzma support
WITH_PCRE Include pcre support
WITH_PROJ Include proj support
WITH_READLINE Include readline support
WITH_UUID Include uuid support
WITH_VALGRIND Include valgrind support
WITH_XML2 Include xml2 support
WITH_ZLIB Include zlib support

Required packages

On Fedora, the following packages are required: bison, cmake, gcc, pkgconf, python3.

The following packages are optional but recommended: bzip2-devel, libuuid-devel, pcre-devel, readline-devel, xz-devel, zlib-devel.

The following packages are optional: cfitsio-devel, gdal-devel, geos-devel, libasan, libcurl-devel, libxml2-devel, netcdf-devel, proj-devel, python3-devel, python3-numpy, R-core-devel, unixODBC-devel, valgrind-devel.

On Ubuntu and Debian the following packages are required: bison, cmake, gcc, libssl-dev, pkg-config, python3.

The following packages are optional but recommended: libbz2-dev, uuid-dev, libpcre3-dev, libreadline-dev, liblzma-dev, zlib1g-dev.

The following packages are optional: libasan5, libcfitsio-dev, libcurl4-gnutls-dev, libgdal-dev, libgeos-dev, libnetcdf-dev, libproj-dev, libxml2-dev, python3-dev, python3-numpy, r-base-dev, unixodbc-dev, valgrind.

cmake must be at least version 3.12, python must be at least version 3.5.


We of course hope there aren't any, but if you do find one, you can report bugs in our `github`__ repository.

Please note that we do not accept github Pull Requests. See the developers page for instructions.

Copyright Notice

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at

Copyright 1997 - July 2008 CWI, August 2008 - 2021 MonetDB B.V.


This is the official mirror of the MonetDB Mercurial repository. Please note that we do not accept pull requests on github. The regression test results can be found on the MonetDB Testweb .For contributions please see:





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