Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Apache Arrow
Upstream-Contact: <dev@arrow.apache.org>
Source: https://dist.apache.org/repos/dist/release/arrow/


Files: *
Copyright:
 2016-2025 The Apache Software Foundation
 2002-2017 Jason Evans <jasone@canonware.com>
 2007-2012 Mozilla Foundation
 2009-2017 Facebook, Inc.
 2011-2012 Dynamic NDArray Developers
 2005-2017 NumPy Developers
 2008-2011 AQR Capital Management, LLC
 2009 The Go Authors.
 2011-2012 Lambda Foundry, Inc. and PyData Development Team
 2012 Cloudera, Inc.
 2013 Daniel Lemire
 2014 Google Inc.
 2015 Microsoft Corporation.
 2015 The TensorFlow Authors
 2016 Cloudera Inc.
 2016 manylinux
 Boost project contributors
License: Apache-2.0
Comment:
 There were many cases of code being included without
 specifying where it was located, All those cases ended up here.
 .
 The more definitive source for copyright information is
 LICENSE.txt

Files: ci/conan/*
Copyright:
 2019 Conan.io
License: Expat

Files: ci/conan/all/test_package/test_package.cpp
       ci/conan/merge_status.sh
       ci/conan/merge_upstream.sh
Copyright:
 unclear
License: Apache-2.0
Comment:
 Likely Apache's main authors.


Files: ci/scripts/PKGBUILD
       ci/scripts/r_windows_build.sh
Copyright:
 2025        Arrow's main authors
 2013 - 2019 Алексей and Jeroen Ooms
License: Apache-2.0
Comment:
 In LICENSE.txt these files are declared to be derived from code
 of the rtools-backports project with
 Copyright (c) 2013 - 2019, Алексей and Jeroen Ooms
 and the BSD-3-clause License. The files themselves have a clear
 Apache-2.0 header, though.



Files: cpp/src/arrow/util/utf8.h
Copyright:
 2025 Arrow's main authors
 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
License: Apache-2.0
Comment:
 The file LICENSE.tyt states that cpp/src/arrow/util/utf8.h
 includes code adapted from
 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
 with copyright
 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
 but the file header declares it as relicensed.

Files: cpp/cmake_modules/BuildUtils.cmake
Copyright:
 2025 Arrow's main authors
 2019 Cristia Adam
License: Apache-2.0
Comment:
 The file LICENSE.tyt states that cpp/cmake_modules/BuildUtils.cmake
 contains code from
 https://gist.github.com/cristianadam/ef920342939a89fae3e8a85ca9459b49
 which is made available under the MIT license (= Expat) with
 Copyright (c) 2019 Cristia Adam
 but declared as licensed to the ASF in the file's header.

Files: cpp/src/arrow/io/mman.h
Copyright:
 2010-2012 Viktor Kutuzov <kutuzov.viktor.84@gmail.com>
License: Expat
Comment: From what is now https://github.com/alitrack/mman-win32.

Files: cpp/src/arrow/util/crc32.cc
Copyright:
 2011-2015 Stephan Brumme
 1994-2016 Carnegie Mellon University
License: Apache-2.0 and zlib and BSD-3-clause
Comment: Slicing-by-16 contributed by Bulat Ziganshin
 Adapted for Cyrus by Robert Norris <robn@fastmail.com>

Files: cpp/src/arrow/util/logging.cc
       cpp/src/arrow/util/logging.h
       cpp/src/arrow/util/logging_test.cc
Copyright: (c) 2016 Ray Project (https://github.com/ray-project/ray)
License: Apache-2.0


Files: python/pyarrow/includes/common.pxd
Copyright:
 2025 Arrow's main authors
 2019 Omer Ozarslan
License: Apache-2.0
Comment:
 In LICENSE.txt it is stated that the file includes
 code from the cymove proect with copyright by
 2019 Omer Ozarslan, but the file's header also
 declares this file to be relicensed to the ASF.

Files: dev/archery/*
Copyright: 2019 RStudio, Inc.
License: Apache-2.0


Files:
 cpp/src/arrow/result.h
Copyright:
 2017 Asylo authors
License: Apache-2.0
Comment: LICENSE.TXT states that this file would
 include code from Google's protobuf project with
 respective copyright by 2008 Google Inc and licensed
 under a BSD-3-clause like license.

Files:
 dev/tasks/homebrew-formulae/apache-arrow.rb
 dev/tasks/homebrew-formulae/apache-arrow-glib.rb
Copyright:
 2009-2025 Homebrew contributors
License: BSD-2-clause

Files:
 cpp/src/arrow/vendored/base64.cpp
Copyright:
 2004-2017 René Nyffenegger
License: zlib

Files: cpp/src/arrow/vendored/datetime/date.h
       cpp/src/arrow/vendored/datetime/tz.h
       cpp/src/arrow/vendored/datetime/tz_private.h
       cpp/src/arrow/vendored/datetime/ios.h
       cpp/src/arrow/vendored/datetime/ios.mm
       cpp/src/arrow/vendored/datetime/tz.cpp
Copyright:
 2015-2017 Howard Hinnant
 2016 Adrian Colomitchi
 2017 Florian Dang
 2017 Paul Thompson
 2018 Tomasz Kamiński
License: Expat

Files: cpp/src/arrow/vendored/double-conversion/*
Copyright:
 2006-2011 the V8 project authors
License: BSD-3-clause-google

Files: cpp/src/arrow/vendored/double-conversion/meson.build
       cpp/src/arrow/vendored/double-conversion/CMakeLists.txt
       cpp/src/arrow/vendored/double-conversion/update.sh
Copyright:
 2025 Arrow's main authors
License: Apache-2.0
Comment: Clearly stated in header file as relicensed to ASF.


Files:
 cpp/src/arrow/vendored/fast_float/*
Copyright:
 unknown
License: Apache-2.0

Files:
 cpp/src/arrow/vendored/musl/strptime.c
Copyright:
 2005-2020 Rich Felker, et al.
License: Expat

Files: cpp/src/arrow/vendored/pcg/*
Copyright:
 2014-2019 Melissa O'Neill <oneill@pcg-random.org>
           and the PCG Project contributors.
License: Expat or Apache-2.0

Files:
 cpp/src/arrow/vendored/portable-snippets/*
Copyright:
 unknown
License: CC0-1.0

Files:
 cpp/src/arrow/vendored/portable-snippets/CMakeLists.txt
 cpp/src/arrow/vendored/portable-snippets/meson.build
Copyright:
 2016-2025 The Apache Software Foundation
License: Apache-2.0

Files: cpp/src/arrow/vendored/ProducerConsumerQueue.h
Copyright:
 Facebook, Inc. and its affiliates.
License: Apache-2.0

Files:
 cpp/src/arrow/vendored/safeint/safe_math.h
 cpp/src/arrow/vendored/safeint/safe_math_impl.h
Copyright:
 David LeBlanc <dcl@dleblanc.net>
License: Expat

Files:
 cpp/src/arrow/vendored/uriparser/*
Copyright:
 2007 Weijia Song <songweijia@gmail.com>
 2007 Sebastian Pipping <sebastian@pipping.org>
License: BSD-3-clause-template
Comment:
 The README.md states:
 .
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at
 .
 http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.

Files: cpp/src/arrow/vendored/utfcpp/*
Copyright:
 2006-2018 Nemanja Trifunovic
License: Expat

Files:
 cpp/src/arrow/vendored/whereami/whereami.cc
 cpp/src/arrow/vendored/whereami/whereami.h
Copyright:
 2024 Gregory Pakosz (@gpakosz)
License: WTFPL-v2 and Expat
Comment:
 https://github.com/gpakosz/whereami

Files:
 cpp/src/arrow/vendored/xxhash/xxhash.c
 cpp/src/arrow/vendored/xxhash/xxhash.h
Copyright:
 2012-2021 Yann Collet
License: BSD-2-clause

Files: python/pyarrow/vendored/docscrape.py
Copyright:
  2005-2023 NumPy Developers <numpy-dev@numpy.org>
License: BSD-2-clause or Apache-2.0

Files: python/pyarrow/vendored/version.py
Copyright:
 Donald Stufft and individual contributors
License: BSD-2-clause or Apache-2.0

Files: python/pyarrow/src/arrow/python/vendored/pythoncapi_compat.h
Copyright:
 2022-2025 Contributors to the pythoncapi_compat project.
License: 0BSD
Comment:
 Homepage:
 https://github.com/python/pythoncapi_compat
 .
 Latest version:
 https://raw.githubusercontent.com/python/pythoncapi_compat/master/pythoncapi_compat.h
 .
 Vendored from git revision:
 39e2663e6acc0b68d5dd75bdaad0af33152552ae
 https://raw.githubusercontent.com/python/pythoncapi-compat/39e2663e6acc0b68d5dd75bdaad0af33152552ae/pythoncapi_compat.h

Files: r/configure
Copyright:
 2025 Arrow's main authors
 2017 Jeroen Ooms and Jim Hester
License: Apache-2.0
Comment:
 In LICENSE.txt it is stated that the file would be made available
 under the MIT (= Expat) license, but the source file indicates
 in the header that the file was relicensed to the ASF.


Files: .github/actions/sync-nightlies/action.yml
Copyright:
 2020 Joshua Piper
 2019-2022 Contention
 2019-2022 Burnett01
License: Apache-2.0
Comment:
 The header of this file states that it was relicensed to the ASF.
 It was derived from code in
  .github/actions/sync-nightlies/action.yml
 and
  .github/actions/sync-nightlies/action.yml
 that was made available under the MIT (= Expat) license
 by the respective above mentioned authors.

Files: debian/*
Copyright:
 2025 Diane Trout <diane@ghic.org>
 2025 Steffen Moeller <moeller@debian.org>
 2022 Sascha Steinbiss <satta@debian.org>
 2025 The Apache Software Foundation via Kouhei Sutou <@kou>
License: Apache-2.0

License: Apache-2.0
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at
 .
      http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 .
 On Debian systems, the full text of the Apache Software License version 2 can
 be found in the file `/usr/share/common-licenses/Apache-2.0'.

License: BSD-3-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 .
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 3. Neither the name of the University nor the names of its contributors
    may be used to endorse or promote products derived from this software
    without specific prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGE.

License: BSD-2-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 .
 1) Redistributions of source code must retain the above copyright
 notice, this list of conditions and the following disclaimer.
 .
 2) Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.

License: BSD-3-clause-google
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
 .
     * Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.
     * Redistributions in binary form must reproduce the above
       copyright notice, this list of conditions and the following
       disclaimer in the documentation and/or other materials provided
       with the distribution.
     * Neither the name of Google Inc. nor the names of its
       contributors may be used to endorse or promote products derived
       from this software without specific prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

License: CC0-1.0
 .
 No Copyright
 .
 The person who associated a work with this deed has dedicated the work
 to the public domain by waiving all of his or her rights to the work
 worldwide under copyright law, including all related and neighboring
 rights, to the extent allowed by law.
 You can copy, modify, distribute and perform the work, even for
 commercial purposes, all without asking permission. See Other Information
 below.
 .
 Other Information
 .
 In no way are the patent or trademark rights of any person affected by
 CC0, nor are the rights that other persons may have in the work or in
 how the work is used, such as publicity or privacy rights.
 Unless expressly stated otherwise, the person who associated a work with
 this deed makes no warranties about the work, and disclaims liability for
 all uses of the work, to the fullest extent permitted by applicable law.
 When using or citing the work, you should not imply endorsement by the
 author or the affirmer.
 .
 The license and its interpretation are available at 
 https://creativecommons.org/publicdomain/zero/1.0/.


License: BSD-3-clause-template
 Redistribution  and use in source and binary forms, with or without
 modification,  are permitted provided that the following conditions
 are met:
 .
     * Redistributions   of  source  code  must  retain  the   above
       copyright  notice, this list of conditions and the  following
       disclaimer.
 .
     * Redistributions  in  binary  form must  reproduce  the  above
       copyright  notice, this list of conditions and the  following
       disclaimer   in  the  documentation  and/or  other  materials
       provided with the distribution.
 .
     * Neither  the name of the <ORGANIZATION> nor the names of  its
       contributors  may  be  used to endorse  or  promote  products
       derived  from  this software without specific  prior  written
       permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  NOT
 LIMITED  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS
 FOR  A  PARTICULAR  PURPOSE ARE DISCLAIMED. IN NO EVENT  SHALL  THE
 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 INCIDENTAL,    SPECIAL,   EXEMPLARY,   OR   CONSEQUENTIAL   DAMAGES
 (INCLUDING,  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES;  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 STRICT  LIABILITY,  OR  TORT (INCLUDING  NEGLIGENCE  OR  OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 OF THE POSSIBILITY OF SUCH DAMAGE.


License: Expat
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 .
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.

License: WTFPL-v2
             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004
 .
 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
 .
 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.
 .
            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 .
  0. You just DO WHAT THE FUCK YOU WANT TO.

License: zlib
 This source code is provided 'as-is', without any express or implied
 warranty. In no event will the author be held liable for any damages arising
 from the use of this software.
 .
 Permission is granted to anyone to use this software for any purpose, including
 commercial applications, and to alter it and redistribute it freely, subject to
 the following restrictions:
 .
 1. The origin of this source code must not be misrepresented; you must not
    claim that you wrote the original source code. If you use this source code
    in a product, an acknowledgment in the product documentation would be
    appreciated but is not required.
 .
 2. Altered source versions must be plainly marked as such, and must not be
    misrepresented as being the original source code.
 .
 3. This notice may not be removed or altered from any source distribution.

License: 0BSD
 Permission to use, copy, modify, and/or distribute this software for
 anypurpose with or without fee is hereby granted.
 .
 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 WARRANTIESWITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 OFMERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE
 FORANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
 DAMAGESWHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
 IN ANACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 OUT OFOR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.


