Several cases of copyright infringement

[cznic]

This repository publishes code copied from and/or based on copyrighted 3rd party code published under specific licenses; without fulfilling the terms defined in those licenses. Particularly, the original license comments in the original files were removed and replaced by a license claim of the infringing party. That's not acceptable. Also, it's just silly, as the original licenses permit to use/modify/republish or even sell the code without having to pay anything to the authors of the original code.

Examples

• format.go contains verbatim copies of parts of code originaly published in strutil.go.
• btree.go contains verbatim copies of parts of code originaly published in btree.go.
• Many files found in the plan directory contain code clearly derived and/or parts sometimes verbatim copied from code originally published in plan.go.

In only minutes, I was able to found tens of similar additional copyright infringements. Also, this repository now has 100+ of forks and every single fork has the same copyright issue.

In essence, this project is an adaption/extension of the QL project for other SQL syntax and features, including alternative back-ends. (Which is, in sum, an amazing achievement - sincere congratulations.)

To the owners, maintainers of this repository: Please let me know your thoughts/plans/intentions related to this issue. Thanks.

[c4pt0r]

Thank you for your comment! TiDB is derived from the cznic/ql codebase, thank you again for the awesome job!

We'll add the ql-licence declaration in the files that contains your code. Is that OK? Please let us know :)
Just like this:

// Copyright 2015 The ql Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Copyright 2015 PingCAP, Inc.
//
// Licensed 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,
// See the License for the specific language governing permissions and
// limitations under the License.

.....
@cznic

[cznic]

@c4pt0r Thank you for the feedback, SGTM.

[c4pt0r]

Fixed.
#74

[astaxie]

👍