Add filtering criterion that relates the given instance to a child object or collection, using its attribute state as well as an estab

Create a DDL statement. :param statement: A string or unicode string to be executed. Statements will be processed with P

Return a dialect-specific result processor for this type.

Return this :class:`_functions.FunctionElement` as a column expression that selects from itself as a FROM clause. E.g.: .. s

Delegate a debug call to the underlying logger.

Return a :class:`.Extract` construct. This is typically available as :func:`.extract` as well as ``func.extract`` from the :data:`.func`

Return an event collection which can be modified. For _EmptyListener at the instance level of a dispatcher, this generates a new

Facade to attributes.get_state_history(), including caching of results.

Return information about the table comment in all tables in the given ``schema``. This is an internal dialect method. Applications sh

TODO

A user-modifiable dictionary. The initial value of this dictionary can be populated using the ``info`` argument to the :class:`.Sessi

Implement the ``IS NOT`` operator. Normally, ``IS NOT`` is generated automatically when comparing to a value of ``None``, which resol

Traverse the given expression structure, returning an iterator of all elements.

Return the :class:`.Session` to which the given instance belongs. This is essentially the same as the :attr:`.InstanceState.session` accessor

Produce a conjunction of expressions joined by ``OR``. See :func:`_sql.or_` for full documentation.

target dialect supports representation of Python datetime.time() objects.

Run del events. This event occurs before the collection is actually mutated, *except* in the case of a pop operation, in which case it occurs

Soft close this :class:`_engine.CursorResult`. This releases all DBAPI cursor resources, but leaves the CursorResult "open" from a se

r"""Return a count of rows this the SQL formed by this :class:`Query` would return. This generates the SQL for this Query as follows:

Add an iterable of items to this :class:`_orm.AppenderQuery`. The given items will be persisted to the database in terms of the paren

Return True if this :class:`.History` has changes.

Load the non-compied version of a module that is also compiled with cython.

Iterate through sub-lists of rows of the size given. Each list will be of the size given, excluding the last list to be yielded, whic

Return a new :class:`_pool.Pool`, of the same class as this one and configured with identical creation arguments. This method is used

Receive a scalar set event. :param target: the object instance receiving the event. If the listener is registered with ``raw=True``

set an attribute value on the given instance and 'commit' it.

helper context manager that will apply appropriate DDL events to a CREATE or DROP operation.

return a callable that will retrieve the given key from a :class:`_engine.Row`.

r"""Place an object into this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on

Begin a transaction, or nested transaction, on this :class:`.Session`, if one is not already begun. The :class:`_orm.Session` object

Return a threadsafe counter function.

Control whether or not eager joins and subqueries are rendered. When set to False, the returned Query will not render eager j

r"""Return the value of a dialect-specific option, or *else_* if this dialect does not register the given argument. This is useful fo

Return a structure of supported isolation levels for the current testing dialect. The structure indicates to the testing suite what t

Return at most one result or raise an exception. Returns ``None`` if the query selects no rows. Raises ``sqlalchemy.orm.exc.Multiple

Specify the VALUES clause of this UPDATE statement with an explicit parameter ordering that will be maintained in the SET clause of the

Indicate an attribute that populates from a query-time SQL expression. :param default_expr: Optional SQL expression object that will be used in