PostgreSQL/psycopg Backend

This are notes about PostqreSQL backend based on the psycopg adapter for Roundup issue tracker.

Prerequisites

To use PostgreSQL as backend for storing roundup data, you should additionally install:

1. PostgreSQL 8.x or higher
2. The psycopg python interface to PostgreSQL

Note that you currently need at least version 2.8 of psycopg – the postgresql backend will work with 2.7 but if you’re using the native postgresql indexer you need at least 2.8. Also if you want to run the tests, these also need 2.8. If your distribution has an older version we suggest that you install into a python virtual environment.

Running the PostgreSQL unit tests

The user that you’re running the tests as will need to be able to access the postgresql database on the local machine and create and drop databases. See the config values in ‘test/db_test_base.py’ about which database connection, name and user will be used.

At this time the following command will setup the user:

sudo -u postgres psql -c "CREATE ROLE rounduptest WITH CREATEDB LOGIN PASSWORD 'rounduptest';" -U postgres

Note rounduptest is a well known account, so you should remove/disable the account after testing and set up a suitable production account. You need to remove any database owned by rounduptest first. So something like this should work:

sudo -u postgres psql -c "DROP DATABASE rounduptest;" -U postgres
sudo -u postgres psql -c "DROP ROLE rounduptest;" -U postgres

If the rounduptest database is left in a broken state (e.g. because of a crash during testing) dropping the database and restarting the tests should fix it.

Credit

The postgresql backend was originally submitted by Federico Di Gregorio <fog@initd.org>