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-The **dialect** is the system SQLAlchemy uses to communicate with various types of
DBAPIs and databases.
+The **dialect** is the system SQLAlchemy uses to communicate with various types of s and databases.
The sections that follow contain reference documentation and notes specific to the usage of each backend, as well as notes
In Python, a descriptor is an object attribute with “binding behavior”, one whose attribute access has been overridden by methods in the `descriptor protocol <http://docs.python.org/howto/descriptor.html>`_.
in the SQL statement that's emitted in order to perform a per-attribute lazy load, or when a join is
for each row. The ``city`` criteria has no effect here, as the flush process only cares about synchronizing primary