diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..c9b8f87
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,95 @@
+<!-- 
+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.
+-->
+
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at dev@doris.apache.org. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..5c9c62d
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,749 @@
+                                 Apache License
+                           Version 2.0, January 2004
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+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+      To apply the Apache License to your work, attach the following
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+--------------------------------------------------------------------------------
+
+be/src/common/status.* : BSD-style license
+
+  Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+  Use of this source code is governed by a BSD-style license that can be
+  found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/atomicops-internals-x86.h : Apache 2.0 License
+
+Copyright 2003 Google Inc.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/atomicops-internals-x86.cc : Apache 2.0 License
+
+Copyright 2007 Google Inc.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/arm_instruction_set_select.h : Apache 2.0 License
+
+Copyright 2011 Google Inc.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/stl_util.h : Apache 2.0 License
+
+Copyright 2007 Google Inc.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/utf/*: licensed under the following terms:
+
+  UTF-8 Library
+
+  The authors of this software are Rob Pike and Ken Thompson.
+      Copyright (c) 1998-2002 by Lucent Technologies.
+
+  Permission to use, copy, modify, and distribute this software for any purpose without
+  fee is hereby granted, provided that this entire notice is included in all copies of any
+  software which is or includes a copy or modification of this software and in all copies
+  of the supporting documentation for such software.  THIS SOFTWARE IS BEING PROVIDED "AS
+  IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR
+  LUCENT TECHNOLOGIES MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+  MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+
+--------------------------------------------------------------------------------
+
+be/src/gutil/valgrind.h: licensed under the following terms:
+
+   This file is part of Valgrind, a dynamic binary instrumentation
+   framework.
+
+   Copyright (C) 2000-2008 Julian Seward.  All rights reserved.
+
+   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. The origin of this software must not be misrepresented; you must
+      not claim that you wrote the original software.  If you use this
+      software in a product, an acknowledgment in the product
+      documentation would be appreciated but is not required.
+
+   3. Altered source versions must be plainly marked as such, and must
+      not be misrepresented as being the original software.
+
+   4. The name of the author may not be used to endorse or promote
+      products derived from this software without specific prior written
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+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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+   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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+
+--------------------------------------------------------------------------------
+
+be/src/gutil: 3-clause BSD
+
+Except above files in this module, other files of this module are derived from code in
+the Chromium project, copyright (c) Google inc and (c) The Chromium Authors and 
+licensed under the 3-clause BSD license:
+
+  Copyright (c) 2013 The Chromium Authors. All rights reserved.
+
+  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
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+  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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+  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.
+
+--------------------------------------------------------------------------------
+
+Parts of be/src/runtime/string_search.hpp: Python Software License V2
+
+  Copyright (c) 2001 - 2016 Python Software Foundation; All Rights Reserved
+
+  PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+  --------------------------------------------
+
+  1. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and the
+  Individual or Organization ("Licensee") accessing and otherwise using this software
+  ("Python") in source or binary form and its associated documentation.
+
+  2. Subject to the terms and conditions of this License Agreement, PSF hereby grants
+  Licensee a nonexclusive, royalty-free, world-wide license to reproduce, analyze, test,
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+  2005, 2006 Python Software Foundation; All Rights Reserved" are retained in Python alone
+  or in any derivative version prepared by Licensee.
+
+  3. In the event Licensee prepares a derivative work that is based on or incorporates
+  Python or any part thereof, and wants to make the derivative work available to others as
+  provided herein, then Licensee hereby agrees to include in any such work a brief summary
+  of the changes made to Python.
+
+  4. PSF is making Python available to Licensee on an "AS IS" basis. PSF MAKES NO
+  REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, BUT NOT
+  LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY
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+
+  5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON FOR ANY INCIDENTAL,
+  SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF MODIFYING, DISTRIBUTING, OR
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+
+  6. This License Agreement will automatically terminate upon a material breach of its
+  terms and conditions.
+
+  7. Nothing in this License Agreement shall be deemed to create any relationship of
+  agency, partnership, or joint venture between PSF and Licensee. This License Agreement
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+
+  8. By copying, installing or otherwise using Python, Licensee agrees to be bound by the
+  terms and conditions of this License Agreement.
+
+--------------------------------------------------------------------------------
+
+be/src/env (some portions): 3-clause BSD
+
+Some portions of this module are derived from code from RocksDB
+( https://github.com/facebook/rocksdb ). RocksDB is dual-licensed
+ under both the GPLv2 and Apache 2.0 License. We select Apache 2.0
+License.
+
+--------------------------------------------------------------------------------
+
+be/src/util/coding.*: this code is licensed under both GPLv2 and Apache 2.0 License.
+                      Doris chooses Apache 2.0 License.
+
+  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+  This source code is licensed under both the GPLv2 (found in the
+  COPYING file in the root directory) and Apache 2.0 License
+  (found in the LICENSE.Apache file in the root directory).
+  
+  Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+  Use of this source code is governed by a BSD-style license that can be
+  found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+--------------------------------------------------------------------------------
+
+be/src/olap/lru_cache.h : BSD-style license
+be/src/olap/lru_cache.cpp : BSD-style license
+
+  Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+  Use of this source code is governed by a BSD-style license that can be
+  found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+--------------------------------------------------------------------------------
+
+be/src/olap/skiplist.h : BSD-style license
+
+  Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+  Use of this source code is governed by a BSD-style license that can be
+  found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+--------------------------------------------------------------------------------
+
+be/src/util/murmur_hash3.h
+be/src/util/murmur_hash3.cpp
+
+  licensed under the following terms:
+
+  MurmurHash3 was written by Austin Appleby, and is placed in the public
+  domain. The author hereby disclaims copyright to this source code.
+
+--------------------------------------------------------------------------------
+
+fe/fe-common/src/main/java/org/apache/doris/common/jmockit/*: MIT license
+
+Copyright (c) 2006 JMockit developers
+
+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.
+
+-------------------------------------------------------------------------------
+
+be/src/util/utf8_check.cpp: MIT license
+
+  MIT License
+  
+  Copyright (c) 2019 Yibo Cai
+  
+  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.
+
+--------------------------------------------------------------------------------
+
+be/src/util/condition_variable* : BSD-style license
+
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+
+--------------------------------------------------------------------------------
+
+docs/.vuepress/* The MIT License (MIT)
+
+Copyright (c) 2018-present, Yuxi (Evan) You
+
+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.
+
+--------------------------------------------------------------------------------
+
+be/src/util/sse2neon.h: MIT license
+
+This header file provides a simple API translation layer
+between SSE intrinsics to their corresponding Arm/Aarch64 NEON versions
+
+This header file does not yet translate all of the SSE intrinsics.
+
+Contributors to this work are:
+  John W. Ratcliff <jratcliffscarab@gmail.com>
+  Brandon Rowlett <browlett@nvidia.com>
+  Ken Fast <kfast@gdeb.com>
+  Eric van Beurden <evanbeurden@nvidia.com>
+  Alexander Potylitsin <apotylitsin@nvidia.com>
+  Hasindu Gamaarachchi <hasindu2008@gmail.com>
+  Jim Huang <jserv@biilabs.io>
+  Mark Cheng <marktwtn@biilabs.io>
+  Malcolm James MacLeod <malcolm@gulden.com>
+  Devin Hussey (easyaspi314) <husseydevin@gmail.com>
+
+The MIT license:
+
+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.
+
+--------------------------------------------------------------------------------
+
+build-support/run_clang_format.py: MIT license
+
+This script is copied from:
+https://github.com/DoozyX/clang-format-lint-action/blob/master/run-clang-format.py
+
+which is a wrapper script around clang-format, suitable for linting multiple files
+and to use for continuous integration.
+
+MIT License
+
+Copyright (c) 2019 Slobodan Kletnikov
+
+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.
+
+--------------------------------------------------------------------------------
+
+be/src/common/signal_handler.h:
+
+Copyright (c) 2008, Google Inc.
+All rights reserved.
+
+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.
+
+--------------------------------------------------------------------------------
+
+fe/fe-core/src/main/antlr4/org/apache/doris/nereids/JavaLexer.g4: BSD licence
+
+[The "BSD licence"]
+ Copyright (c) 2013 Terence Parr, Sam Harwell
+ Copyright (c) 2017 Ivan Kochurkin (upgrade to Java 8)
+ Copyright (c) 2021 Michał Lorek (upgrade to Java 11)
+ Copyright (c) 2022 Michał Lorek (upgrade to Java 17)
+ All rights reserved.
+
+ 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. The name of the author may not be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+
+--------------------------------------------------------------------------------
+
+fe/fe-core/src/main/antlr4/org/apache/doris/nereids/JavaParser.g4: BSD licence
+
+ [The "BSD licence"]
+ Copyright (c) 2013 Terence Parr, Sam Harwell
+ Copyright (c) 2017 Ivan Kochurkin (upgrade to Java 8)
+ Copyright (c) 2021 Michał Lorek (upgrade to Java 11)
+ Copyright (c) 2022 Michał Lorek (upgrade to Java 17)
+ All rights reserved.
+
+ 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. The name of the author may not be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+
+ ----------------------------------------------------------------------------------
+
+ docs/.vuepress/public/js/jquery.min.js: 
+
+ jQuery v2.1.4 | (c) 2005, 2015 jQuery Foundation, Inc. | jquery.org/license
+
+----------------------------------------------------------------------------------
+
+ docs/.vuepress/public/css/animate.min.css: MIT license
+
+Animate.css - http://daneden.me/animate
+Licensed under the MIT license
+
+Copyright (c) 2013 Daniel Eden
+
+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.
+
+----------------------------------------------------------------------------------
+docs/.vuepress/public/js/wow.min.js: 
+
+The MIT License (MIT)
+
+Copyright (c) 2016 Thomas Grainger.
+
+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.
+
+
+Portions of this wow.js Software may utilize the following copyrighted material, the use of which is hereby acknowledged.
+
+WOW: https://github.com/matthieua/WOW/tree/20848c410fe32d161c2330e1d261b59512094f81
+
+Copyright (C) 2014; Matthieu Aussaguel
+
+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.
+----------------------------------------------------------------------------------
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bfd5d62
--- /dev/null
+++ b/README.md
@@ -0,0 +1,29 @@
+<!--
+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.
+-->
+
+# Apache Doris Thirdparty Libs
+
+This repository is used to manage third-party libraries used in Apache Doris. Some libraries have not been maintained for a long time, so fork into this repository for bug fixes and feature development. Each third-party library is in a separate branch.
+
+# Current Libs
+
+| Lib Name | Branch   | Description                                                  | Base version | Source URL                                                   | Latest Tag |
+| -------- | -------- | ------------------------------------------------------------ | ------------ | ------------------------------------------------------------ | ---------- |
+| libhdfs3 | libhdfs3 | designed as an alternative implementation of libhdfs, is implemented based on native Hadoop RPC protocol and HDFS data transfer protocol. It gets rid of the drawbacks of JNI, and it has a lightweight, small memory footprint code base. In addition, it is easy to use and deploy. | Master       | [HAWQ_depends](https://github.com/apache/hawq/tree/master/depends/libhdfs3) | V2.3.1     |
+| bdbje    | bdbje    | Berkley Database Java Edition - build and runtime support.   | 18.3.12      | [bdbje Maven src](https://search.maven.org/artifact/com.sleepycat/je/18.3.12/jar) | 18.3.13    |