pg_orca
Copyright (C) 2024 Jianghua Yang

This product includes software developed by Jianghua Yang.

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This product includes code from the ORCA query optimizer, originally
developed as part of Greenplum Database and subsequently maintained in
Apache Cloudberry.

  Greenplum Database
  Copyright (C) 2008-2010 Greenplum Inc.
  Copyright (C) 2011 EMC Corp.
  Copyright (C) 2015-2021 VMware, Inc. or its affiliates.
  Copyright (C) 2021-present Apache Cloudberry contributors.

The ORCA libraries (libgpos, libnaucrates, libgpopt, libgpdbcost) are
licensed under the Apache License, Version 2.0.

The original source is available at:
  https://github.com/apache/cloudberry