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Introduction
============
You may either choose to use the "classic" PyGreSQL interface provided by
the :mod:`pg` module or else the newer DB-API 2.0 compliant interface
provided by the :mod:`pgdb` module.
The following part of the documentation covers only the older :mod:`pg` API.
The :mod:`pg` module handles three types of objects,
- the :class:`Connection` instances, which handle the connection
and all the requests to the database,
- the :class:`LargeObject` instances, which handle
all the accesses to PostgreSQL large objects,
- the :class:`Query` instances that handle query results
and it provides a convenient wrapper class :class:`DB`
for the basic :class:`Connection` class.
.. seealso::
If you want to see a simple example of the use of some of these functions,
see the :doc:`../examples` page.
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