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Consistent partial database dump utility

Project description


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XDump is an utility to make partial consistent dump and load it into the database.

The idea is to provide an ability to specify what to include in the dump via SQL queries.


XDump can be obtained with pip:

$ pip install xdump

Usage example

Making a dump (on production replica for example):

>>> from xdump.postgresql import PostgreSQLBackend
>>> backend = PostgreSQLBackend(dbname='app_db', user='prod', password='pass', host='', port='5432')
>>> backend.dump(
    partial_tables={'employees': 'SELECT * FROM employees ORDER BY id DESC LIMIT 2'}

Load a dump on you local machine:

>>> backend = PostgreSQLBackend(dbname='app_db', user='local', password='pass', host='', port='5432')
>>> backend.load('/path/to/')

RDBMS support

At the moment only the following are supported:

  • PostgreSQL

  • SQLite

Django support

Add xdump.extra.django to your INSTALLED_APPS settings:


Add XDUMP to your project settings file. It should contain minimum 2 entries:

  • FULL_TABLES - a list of tables, that should be fully dumped.

  • PARTIAL_TABLES - a dictionary with table_name: select SQL

    'FULL_TABLES': ['groups'],
    'PARTIAL_TABLES': {'employees': 'SELECT * FROM employees WHERE id > 100'}

Optionally you could use a custom backend:

    'BACKEND': 'importable.string',

Run xdump command:

$ ./ xdump

Run xload command:

$ ./ xload

Possible options to both commands:

  • alias - allows you to choose database config from DATABASES, that is used during the execution;

  • backend - importable string, that leads to custom dump backend class.

The following make command could be useful to get a configured dump from production to your local machine:

    ssh -t $(TARGET) "DJANGO_SETTINGS_MODULE=settings.production /path/to/ xdump /tmp/"
    scp $(TARGET):/tmp/ ./
    ssh -t $(TARGET) "rm /tmp/"
    DJANGO_SETTINGS_MODULE=settings.local $(PYTHON) xload ./

And usage is:

$ make sync-production PYTHON=/path/to/python/in/venv

Python support

XDump supports Python 3.4, 3.5 & 3.6.

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