ClickHouse/docs/en/development/contrib.md

toc_priority	toc_title
70	Third-Party Libraries Used

Third-Party Libraries Used

The list of third-party libraries can be obtained by the following query:

SELECT library_name, license_type, license_path FROM system.licenses ORDER BY library_name COLLATE 'en'

Example

library_name	license_type	license_path
abseil-cpp	Apache	/contrib/abseil-cpp/LICENSE
AMQP-CPP	Apache	/contrib/AMQP-CPP/LICENSE
arrow	Apache	/contrib/arrow/LICENSE.txt
avro	Apache	/contrib/avro/LICENSE.txt
aws	Apache	/contrib/aws/LICENSE.txt
aws-c-common	Apache	/contrib/aws-c-common/LICENSE
aws-c-event-stream	Apache	/contrib/aws-c-event-stream/LICENSE
aws-checksums	Apache	/contrib/aws-checksums/LICENSE
base64	BSD 2-clause	/contrib/base64/LICENSE
boost	Boost	/contrib/boost/LICENSE_1_0.txt
boringssl	BSD	/contrib/boringssl/LICENSE
brotli	MIT	/contrib/brotli/LICENSE
capnproto	MIT	/contrib/capnproto/LICENSE
cassandra	Apache	/contrib/cassandra/LICENSE.txt
cctz	Apache	/contrib/cctz/LICENSE.txt
cityhash102	MIT	/contrib/cityhash102/COPYING
cppkafka	BSD 2-clause	/contrib/cppkafka/LICENSE
croaring	Apache	/contrib/croaring/LICENSE
curl	Apache	/contrib/curl/docs/LICENSE-MIXING.md
cyrus-sasl	BSD 2-clause	/contrib/cyrus-sasl/COPYING
double-conversion	BSD 3-clause	/contrib/double-conversion/LICENSE
dragonbox	Apache	/contrib/dragonbox/LICENSE-Apache2-LLVM
fast_float	Apache	/contrib/fast_float/LICENSE
fastops	MIT	/contrib/fastops/LICENSE
flatbuffers	Apache	/contrib/flatbuffers/LICENSE.txt
fmtlib	Unknown	/contrib/fmtlib/LICENSE.rst
gcem	Apache	/contrib/gcem/LICENSE
googletest	BSD 3-clause	/contrib/googletest/LICENSE
grpc	Apache	/contrib/grpc/LICENSE
h3	Apache	/contrib/h3/LICENSE
hyperscan	Boost	/contrib/hyperscan/LICENSE
icu	Public Domain	/contrib/icu/icu4c/LICENSE
icudata	Public Domain	/contrib/icudata/LICENSE
jemalloc	BSD 2-clause	/contrib/jemalloc/COPYING
krb5	MIT	/contrib/krb5/src/lib/gssapi/LICENSE
libc-headers	LGPL	/contrib/libc-headers/LICENSE
libcpuid	BSD 2-clause	/contrib/libcpuid/COPYING
libcxx	Apache	/contrib/libcxx/LICENSE.TXT
libcxxabi	Apache	/contrib/libcxxabi/LICENSE.TXT
libdivide	zLib	/contrib/libdivide/LICENSE.txt
libfarmhash	MIT	/contrib/libfarmhash/COPYING
libgsasl	LGPL	/contrib/libgsasl/LICENSE
libhdfs3	Apache	/contrib/libhdfs3/LICENSE.txt
libmetrohash	Apache	/contrib/libmetrohash/LICENSE
libpq	Unknown	/contrib/libpq/COPYRIGHT
libpqxx	BSD 3-clause	/contrib/libpqxx/COPYING
librdkafka	MIT	/contrib/librdkafka/LICENSE.murmur2
libunwind	Apache	/contrib/libunwind/LICENSE.TXT
libuv	BSD	/contrib/libuv/LICENSE
llvm	Apache	/contrib/llvm/llvm/LICENSE.TXT
lz4	BSD	/contrib/lz4/LICENSE
mariadb-connector-c	LGPL	/contrib/mariadb-connector-c/COPYING.LIB
miniselect	Boost	/contrib/miniselect/LICENSE_1_0.txt
msgpack-c	Boost	/contrib/msgpack-c/LICENSE_1_0.txt
murmurhash	Public Domain	/contrib/murmurhash/LICENSE
NuRaft	Apache	/contrib/NuRaft/LICENSE
openldap	Unknown	/contrib/openldap/LICENSE
orc	Apache	/contrib/orc/LICENSE
poco	Boost	/contrib/poco/LICENSE
protobuf	BSD 3-clause	/contrib/protobuf/LICENSE
rapidjson	MIT	/contrib/rapidjson/bin/jsonschema/LICENSE
re2	BSD 3-clause	/contrib/re2/LICENSE
replxx	BSD 3-clause	/contrib/replxx/LICENSE.md
rocksdb	BSD 3-clause	/contrib/rocksdb/LICENSE.leveldb
sentry-native	MIT	/contrib/sentry-native/LICENSE
simdjson	Apache	/contrib/simdjson/LICENSE
snappy	Public Domain	/contrib/snappy/COPYING
sparsehash-c11	BSD 3-clause	/contrib/sparsehash-c11/LICENSE
stats	Apache	/contrib/stats/LICENSE
thrift	Apache	/contrib/thrift/LICENSE
unixodbc	LGPL	/contrib/unixodbc/COPYING
xz	Public Domain	/contrib/xz/COPYING
zlib-ng	zLib	/contrib/zlib-ng/LICENSE.md
zstd	BSD	/contrib/zstd/LICENSE