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README.md

CircleCI

postgres_dba (PostgresDBA)

The missing set of useful tools for Postgres DBA and mere mortals.

⚠️ The project is in its very early stage. If you have great ideas, feel free to create a pull request or open an issue.

screen shot 2018-03-19 at 11 49 39

Questions?

Questions? Ideas? Contact me: samokhvalov@gmail.com, Nikolay Samokhvalov.

Credits

postgres_dba is based on useful queries created and improved by many developers. Here is incomplete list of them:

Requirements

You need to have psql version 10, but the Postgres server itself can be older – most tools work with it. You can install postgresql-client library version 10 on your machine and use it to work with Postgres server version 9.6 and older – in this case postgres_dba will work. But you do need to have psql from the latest (version 10) Postgres release.

On clean Ubuntu, this is how you can get postgresql-client and have the most recent psql:

sudo sh -c "echo \"deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main\" >> /etc/apt/sources.list.d/pgdg.list"
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install -y postgresql-client-10

Using alternative psql pager called "pspg" is highly recommended (but not required): https://github.com/okbob/pspg.

Installation

The installation is trivial. Clone the repository and put "dba" alias to your .psqlrc file:

git clone https://github.com/NikolayS/postgres_dba.git
echo "\\set dba '\\\\i `pwd`/postgres_dba/start.psql'" >> ~/.psqlrc

That's it.

Usage

Connect to Local Postgres Server

If you are running psql and Postgres server on the same machine, just launch psql:

psql -U <username> <dbname>

And type :dba <Enter> in psql. (Or \i /path/to/postgres_dba/start.psql if you haven't added shortcut to your ~/.psqlrc file).

– it will open interactive menu.

Connect to Remote Postgres Server

What to do if you need to connect to a remote Postgres server? Usually, Postgres is behind a firewall and/or doesn't listen to a public network interface. So you need to be able to connect to the server using SSH. If you can do it, then just create SSH tunnel (assuming that Postgres listens to default port 5432 on that server:

ssh -fNTML 9432:localhost:5432 sshusername@you-server.com

Then, just launch psql, connecting to port 9432 at localhost:

psql -h localhost -p 9432 -U <username> <dbname>

And type :dba <Enter> in psql to launch postgres_dba.

Connect to Heroku Postgres

Just open psql as you usually do with Heroku:

heroku pg:psql -a <your_project_name>

And then:

:dba

How to Extend (Add More Queries)

You can add your own useful SQL queries and use them from the main menu. Just add your SQL code to ./sql directory. The filename should start with some 1 or 2-letter code, followed by underscore and some additional arbitrary words. Extension should be .sql. Example:

  sql/f1_cool_query.sql

– this will give you an option "f1" in the main menu. The very first line in the file should be an SQL comment (starts with --) with the query description. It will automatically appear in the menu.

Once you added your queries, regenerate start.psql file:

/bin/bash ./init/generate.sh

Now your have the new start.psql and can use it as described above.

‼️ If your new queries are good consider sharing them with public. The best way to do it is to open a Pull Request (https://help.github.com/articles/creating-a-pull-request/).

Uninstallation

No steps are needed, just delete postgres_dba directory and remove \set dba ... in your ~/.psqlrc if you added it.

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