60 lines
1.5 KiB
ReStructuredText
60 lines
1.5 KiB
ReStructuredText
``cassandra.query`` - Prepared Statements, Batch Statements, Tracing, and Row Factories
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=======================================================================================
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.. module:: cassandra.query
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.. autofunction:: tuple_factory
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.. autofunction:: named_tuple_factory
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.. autofunction:: dict_factory
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.. autofunction:: ordered_dict_factory
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.. autoclass:: Statement
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:members:
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.. autoclass:: SimpleStatement
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:members:
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.. autoclass:: PreparedStatement ()
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:members:
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.. autoclass:: BoundStatement
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:members:
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.. autodata:: UNSET_VALUE
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:annotation:
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.. autoclass:: BatchStatement (batch_type=BatchType.LOGGED, retry_policy=None, consistency_level=None)
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:members:
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.. autoclass:: BatchType ()
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.. autoattribute:: LOGGED
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.. autoattribute:: UNLOGGED
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.. autoattribute:: COUNTER
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.. autoclass:: cassandra.query.ValueSequence
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A wrapper class that is used to specify that a sequence of values should
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be treated as a CQL list of values instead of a single column collection when used
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as part of the `parameters` argument for :meth:`.Session.execute()`.
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This is typically needed when supplying a list of keys to select.
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For example::
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>>> my_user_ids = ('alice', 'bob', 'charles')
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>>> query = "SELECT * FROM users WHERE user_id IN %s"
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>>> session.execute(query, parameters=[ValueSequence(my_user_ids)])
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.. autoclass:: QueryTrace ()
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:members:
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.. autoclass:: TraceEvent ()
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:members:
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.. autoexception:: TraceUnavailable
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