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NEWS for release 2.4 ordered in groups

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Daniele Varrazzo 2011-02-23 14:16:22 +00:00
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NEWS
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@ -3,29 +3,40 @@ What's new in psycopg 2.4
* New features and changes:
- Added support for Python 3.1 and 3.2.
- Adapt types 'bytearray' (from Python 2.6), 'memoryview' (from Python 2.7)
and other objects implementing the "Revised Buffer Protocol" to 'bytea'
data type.
- Added 'register_composite()' function to cast PostgreSQL composite types
into Python tuples/namedtuples.
- More efficient iteration on named cursors, fetching 'itersize' records at
time from the backend.
- The named cursors name can be an invalid identifier.
- 'cursor.description' is provided in named tuples if available.
- Raise a clean exception instead of returning bad data when receiving bytea
in 'hex' format and the client libpq can't parse them.
- Connections and cursors are weakly referenceable.
- Added 'b' and 't' mode to large objects: write can deal with both bytes
strings and unicode; read can return either bytes strings or decoded
unicode.
- COPY sends Unicode data to files implementing 'io.TextIOBase'.
- The build script refuses to guess values if 'pg_config' is not found.
- Improved PostgreSQL-Python encodings mapping. Added a few
missing encodings: EUC_CN, EUC_JIS_2004, ISO885910, ISO885916,
LATIN10, SHIFT_JIS_2004.
- Dropped repeated dictionary lookups with unicode query/parameters.
- Empty lists correctly roundtrip Python -> PostgreSQL -> Python.
- Added support for Python 3.1 and 3.2. The conversion has also brought
several improvements:
- Added 'b' and 't' mode to large objects: write can deal with both bytes
strings and unicode; read can return either bytes strings or decoded
unicode.
- COPY sends Unicode data to files implementing 'io.TextIOBase'.
- Improved PostgreSQL-Python encodings mapping.
- Added a few missing encodings: EUC_CN, EUC_JIS_2004, ISO885910,
ISO885916, LATIN10, SHIFT_JIS_2004.
- Dropped repeated dictionary lookups with unicode query/parameters.
- Improvements to the named cusors:
- More efficient iteration on named cursors, fetching 'itersize' records at
time from the backend.
- The named cursors name can be an invalid identifier.
- Improvements in data handling:
- Added 'register_composite()' function to cast PostgreSQL composite types
into Python tuples/namedtuples.
- Adapt types 'bytearray' (from Python 2.6), 'memoryview' (from Python 2.7)
and other objects implementing the "Revised Buffer Protocol" to 'bytea'
data type.
- Raise a clean exception instead of returning bad data when receiving bytea
in 'hex' format and the client libpq can't parse them.
- Empty lists correctly roundtrip Python -> PostgreSQL -> Python.
- Other changes:
- 'cursor.description' is provided as named tuples if available.
- The build script refuses to guess values if 'pg_config' is not found.
- Connections and cursors are weakly referenceable.
* Bug fixes: