bucardo software package provides asynchronous replication system for PostgreSQL, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bucardo
bucardo is installed in your system.
Make ensure the bucardo package were installed using the commands given below,
$ sudo dpkg-query -l | grep bucardo *
You will get with bucardo package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Databases |
| Package | bucardo |
| Version | 5.4.1-1 |
| Description | asynchronous replication system for PostgreSQL |
| Sub Section | Database |