# Third-Party Notices

This file contains notices and license attributions for third-party software

distributed with or referenced by DataEase. DataEase itself remains licensed

under the license described in the root `LICENSE` file; the presence of a

third-party component here does not change that license.

---

## Univer

- Project: https://github.com/dream-num/univer

- Copyright: Copyright (c) 2021-present DreamNum Co., Ltd.

- License: Apache License, Version 2.0

- Usage: Integrated as a front-end spreadsheet/document/presentation SDK.

This product includes the following software licensed under the

Apache License, Version 2.0:

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,

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.

The full text of the Apache License, Version 2.0 is available at

https://www.apache.org/licenses/LICENSE-2.0

Additional Apache-2.0 terms that apply to Univer's included third-party

dependencies (if any) are provided within Univer's own distribution and

should be preserved when redistributing Univer.

---

## Apache Calcite

- Upstream project: https://github.com/apache/calcite

- Upstream Copyright: Copyright 2013 The Apache Software Foundation

- License: Apache License, Version 2.0

- Version integrated: calcite-core 1.35.34

- Usage: SQL parsing, validation and optimization; consumed as a Maven

dependency (`org.apache.calcite:calcite-core`) from Fit2Cloud's private

repository. This is a **custom fork** of the upstream Apache Calcite with

modifications maintained in a private repository.

This product includes the following software licensed under the

Apache License, Version 2.0:

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,

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.

The full text of the Apache License, Version 2.0 is available at

https://www.apache.org/licenses/LICENSE-2.0

---

## Apache SeaTunnel

- Upstream project: https://github.com/apache/seatunnel

- Upstream Copyright: Copyright 2021 The Apache Software Foundation

- License: Apache License, Version 2.0

- Version reference: SeaTunnel 2.3.12 (connector-v2)

- Usage: Data synchronization engine, driven/coordinated by DataEase's

sync extension module (`extensions-sync`). This is a **custom fork** of the

upstream Apache SeaTunnel with modifications maintained in a private

repository.

This product includes the following software licensed under the

Apache License, Version 2.0:

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,

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.

The full text of the Apache License, Version 2.0 is available at

https://www.apache.org/licenses/LICENSE-2.0