Clarified purpose of "Database backend API" backwards incompatible changes section.
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@ -490,6 +490,9 @@ Backwards incompatible changes in 1.11
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Database backend API
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--------------------
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This section describes changes that may be needed in third-party database
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backends.
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* The ``DatabaseOperations.time_trunc_sql()`` method is added to support
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``TimeField`` truncation. It accepts a ``lookup_type`` and ``field_name``
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arguments and returns the appropriate SQL to truncate the given time field
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@ -280,6 +280,9 @@ bytestrings in certain code paths.
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Database backend API
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--------------------
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This section describes changes that may be needed in third-party database
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backends.
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* The ``DatabaseOperations.datetime_cast_date_sql()``,
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``datetime_cast_time_sql()``, ``datetime_trunc_sql()``, and
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``datetime_extract_sql()`` methods now return only the SQL to perform the
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@ -292,13 +295,6 @@ Database backend API
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* The first argument of ``SchemaEditor._alter_column_type_sql()`` is now
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``model`` rather than ``table``.
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* To improve performance when streaming large result sets from the database,
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:meth:`.QuerySet.iterator` now fetches 2000 rows at a time instead of 100.
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The old behavior can be restored using the ``chunk_size`` parameter. For
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example::
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Book.objects.iterator(chunk_size=100)
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Dropped support for Oracle 11.2
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-------------------------------
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@ -417,6 +413,13 @@ Miscellaneous
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* The default size of the Oracle test tablespace is increased from 20M to 50M
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and the default autoextend size is increased from 10M to 25M.
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* To improve performance when streaming large result sets from the database,
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:meth:`.QuerySet.iterator` now fetches 2000 rows at a time instead of 100.
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The old behavior can be restored using the ``chunk_size`` parameter. For
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example::
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Book.objects.iterator(chunk_size=100)
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.. _deprecated-features-2.0:
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Features deprecated in 2.0
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