MongoDB, MySQL, Hadoop (HDFS) Foreign Data Wrappers updated to support PostgreSQL 16

[EDB](https://www.enterprisedb.com) is pleased to announce new releases of MongoDB, MySQL, and Hadoop (HDFS) Foreign Data Wrappers to support the upcoming PostgreSQL 16 release. These Foreign Data Wrappers allow Postgres to connect to Hadoop, MongoDB, and MySQL servers enabling you to view, join, and manage remote data all from Postgres.

### Highlights of these releases include:

**MongoDB FDW 5.5.1**

* Enhancement: Added support for PostgreSQL 16
* Enhancement: GUCs added: `enable_join_pushdown` and `enable_aggregate_pushdown`
* Feature: Table/Server level option added: `enable_order_by_pushdown`

**MySQL FDW 2.9.1**

* Enhancement: Added support for PostgreSQL 16
* Enhancement: Added operators and functions entries in the default `mysql_fdw_pushdown.config` file
* Bug: Fixed incorrect quoting in generating EXPLAIN query

**Hadoop FDW 2.3.1**

* Enhancement: Added support for PostgreSQL 16
* Enhancement: GUCs added: `enable_join_pushdown` and `enable_aggregate_pushdown`
* Feature: Table/Server level option added: `enable_order_by_pushdown` and `enable_aggregate_pushdown`

### To learn more, please visit the GitHub project pages:
[MongoDB FDW](https://github.com/EnterpriseDB/mongo_fdw): [https://github.com/EnterpriseDB/mongo_fdw](https://github.com/EnterpriseDB/mongo_fdw)

[MySQL FDW](https://github.com/EnterpriseDB/mysql_fdw): [https://github.com/EnterpriseDB/mysql_fdw](https://github.com/EnterpriseDB/mysql_fdw)

[Hadoop FDW](https://github.com/EnterpriseDB/hdfs_fdw): [https://github.com/EnterpriseDB/hdfs_fdw](https://github.com/EnterpriseDB/hdfs_fdw)