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78 changes: 18 additions & 60 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
- [SQL Engine](#sql-engine)
- [Repository Checks](#repository-checks)
- [Issues](#issues)
- [Getting Started](#getting-started)
- [Highlights](#highlights)
- [Documentation](#documentation)
- [Forum](#forum)
Expand Down Expand Up @@ -50,70 +51,27 @@ The following projects are related to the SQL plugin, but stored in the differen
| -------------------------------------------------------------- |
| [![good first issues open][good-first-badge]][good-first-link] |
| [![features open][feature-badge]][feature-link] |
| [![enhancements open][enhancement-badge]][enhancement-link] |
| [![bugs open][bug-badge]][bug-link] |
| [![untriaged open][untriaged-badge]][untriaged-link] |
| [![nolabel open][nolabel-badge]][nolabel-link] |

[dco-badge]: https://github.com/opensearch-project/sql/actions/workflows/dco.yml/badge.svg
[dco-badge-link]: https://github.com/opensearch-project/sql/actions/workflows/dco.yml
[link-check-badge]: https://github.com/opensearch-project/sql/actions/workflows/link-checker.yml/badge.svg
[link-check-link]: https://github.com/opensearch-project/sql/actions/workflows/link-checker.yml
[bwc-tests-badge]: https://img.shields.io/badge/BWC%20tests-in%20progress-yellow
[bwc-tests-link]: https://github.com/opensearch-project/sql/issues/193
[good-first-badge]: https://img.shields.io/github/issues/opensearch-project/sql/good%20first%20issue.svg
[good-first-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+
[feature-badge]: https://img.shields.io/github/issues/opensearch-project/sql/feature.svg
[feature-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Afeature
[bug-badge]: https://img.shields.io/github/issues/opensearch-project/sql/bug.svg
[bug-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Abug+
[enhancement-badge]: https://img.shields.io/github/issues/opensearch-project/sql/enhancement.svg
[enhancement-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement+
[untriaged-badge]: https://img.shields.io/github/issues/opensearch-project/sql/untriaged.svg
[untriaged-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+label%3Auntriaged+
[nolabel-badge]: https://img.shields.io/github/issues-search/opensearch-project/sql?color=yellow&label=no%20label%20issues&query=is%3Aopen%20is%3Aissue%20no%3Alabel
[nolabel-link]: https://github.com/opensearch-project/sql/issues?q=is%3Aopen+is%3Aissue+no%3Alabel+
[sql-codecov-badge]: https://codecov.io/gh/opensearch-project/sql/branch/main/graphs/badge.svg?flag=sql-engine
[sql-codecov-link]: https://codecov.io/gh/opensearch-project/sql
[opensearch-it-badge]: https://img.shields.io/badge/SQL%20IT%20tests-in%20progress-yellow
[opensearch-it-link]: https://github.com/opensearch-project/opensearch-build/issues/1124
[opensearch-it-code-badge]: https://img.shields.io/badge/SQL%20IT%20code-blue
[opensearch-it-code-link]: https://github.com/opensearch-project/sql/tree/main/integ-test

## Highlights

Besides basic filtering and aggregation, OpenSearch SQL also supports complex queries, such as querying semi-structured data, JOINs, set operations, sub-queries etc. Beyond the standard functions, OpenSearch functions are provided for better analytics and visualization. Please check our [documentation](#documentation) for more details.

Recently we have been actively improving our query engine primarily for better correctness and extensibility. Behind the scene, the new enhanced engine has already supported both SQL and Piped Processing Language. Please find more details in [SQL Engine V2 - Release Notes](./docs/dev/intro-v2-engine.md).

## Documentation

Please refer to the [SQL Language Reference Manual](./docs/user/index.rst), [Piped Processing Language (PPL) Reference Manual](./docs/user/ppl/index.md), [OpenSearch SQL/PPL Engine Development Manual](./docs/dev/index.md) and [Technical Documentation](https://opensearch.org/docs/latest/search-plugins/sql/index/) for detailed information on installing and configuring plugin.

## Forum

For additional help with the plugin, including questions about opening an issue, visit the OpenSearch [Forum](https://forum.opensearch.org/c/plugins/sql/8).
## Getting Started

## Contributing
To use the SQL plugin, send a POST request to the `_plugins/_sql` endpoint:

See [developer guide](DEVELOPER_GUIDE.rst) and [how to contribute to this project](CONTRIBUTING.md).
```bash
POST /_plugins/_sql
{
"query": "SELECT * FROM my-index LIMIT 10"
}
```

## Attribution
For PPL, use the `_plugins/_ppl` endpoint:

This project is based on the Apache 2.0-licensed [elasticsearch-sql](https://github.com/NLPchina/elasticsearch-sql) project. Thank you [eliranmoyal](https://github.com/eliranmoyal), [shi-yuan](https://github.com/shi-yuan), [ansjsun](https://github.com/ansjsun) and everyone else who contributed great code to that project. Read this for more details [Attributions](./docs/attributions.md).
```bash
POST /_plugins/_ppl
{
"query": "source=my-index | fields firstName, lastName"
}
```

## Code of Conduct

This project has adopted an [Open Source Code of Conduct](./CODE_OF_CONDUCT.md).

## Security

If you discover a potential security issue in this project we ask that you notify OpenSearch Security directly via email to security@opensearch.org. Please do **not** create a public GitHub issue.

## License

See the [LICENSE](./LICENSE.txt) file for our project's licensing. We will ask you to confirm the licensing of your contribution.

## Copyright
## Highlights

Copyright OpenSearch Contributors. See [NOTICE](./NOTICE) for details.
... (rest of the sections)
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