mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-27 03:13:43 +03:00
129 lines
4.4 KiB
Groff
129 lines
4.4 KiB
Groff
What's new in psycopg 2.3.3
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---------------------------
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* New features and changes:
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- Added `register_composite()` function to cast PostgreSQL composite types
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into Python tuples/namedtuples.
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- The build script refuses to guess values if pg_config is not found.
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- Improved PostgreSQL-Python encodings mapping. Added a few
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missing encodings: EUC_CN, EUC_JIS_2004, ISO885910, ISO885916,
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LATIN10, SHIFT_JIS_2004.
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- Dropped repeated dictionary lookups with unicode query/parameters.
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- Empty lists correctly roundtrip Python -> PostgreSQL -> Python.
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* Bug fixes:
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- Fixed adaptation of None in composite types (ticket #26). Bug report by
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Karsten Hilbert.
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What's new in psycopg 2.3.2
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---------------------------
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- Fixed segfault with middleware not passing DateStyle to the client
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(ticket #24). Bug report and patch by Marti Raudsepp.
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What's new in psycopg 2.3.1
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---------------------------
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- Fixed build problem on CentOS 5.5 x86_64 (ticket #23).
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What's new in psycopg 2.3.0
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---------------------------
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psycopg 2.3 aims to expose some new features introduced in PostgreSQL 9.0.
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* Main new features:
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- `dict` to `hstore` adapter and `hstore` to `dict` typecaster, using both
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9.0 and pre-9.0 syntax.
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- Two-phase commit protocol support as per DBAPI specification.
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- Support for payload in notifications received from the backed.
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- `namedtuple`-returning cursor.
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- Query execution cancel.
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* Other features and changes:
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- Dropped support for protocol 2: Psycopg 2.3 can only connect to PostgreSQL
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servers with version at least 7.4.
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- Don't issue a query at every connection to detect the client encoding
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and to set the datestyle to ISO if it is already compatible with what
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expected.
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- `mogrify()` now supports unicode queries.
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- Subclasses of a type that can be adapted are adapted as the superclass.
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- `errorcodes` knows a couple of new codes introduced in PostgreSQL 9.0.
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- Dropped deprecated Psycopg "own quoting".
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- Never issue a ROLLBACK on close/GC. This behaviour was introduced as a bug
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in release 2.2, but trying to send a command while being destroyed has been
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considered not safe.
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* Bug fixes:
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- Fixed use of `PQfreemem` instead of `free` in binary typecaster.
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- Fixed access to freed memory in `conn_get_isolation_level()`.
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- Fixed crash during Decimal adaptation with a few 2.5.x Python versions
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(ticket #7).
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- Fixed notices order (ticket #9).
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What's new in psycopg 2.2.2
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---------------------------
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* Bux fixes:
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- the call to logging.basicConfig() in pool.py has been dropped: it was
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messing with some projects using logging (and a library should not
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initialize the logging system anyway.)
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- psycopg now correctly handles time zones with seconds in the UTC offset.
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The old register_tstz_w_secs() function is deprecated and will raise a
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warning if called.
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- Exceptions raised by the column iterator are propagated.
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- Exceptions raised by executemany() interators are propagated.
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What's new in psycopg 2.2.1
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---------------------------
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* Bux fixes:
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- psycopg now builds again on MS Windows.
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What's new in psycopg 2.2.0
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---------------------------
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This is the first release of the new 2.2 series, supporting not just one but
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two different ways of executing asynchronous queries, thanks to Jan and Daniele
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(with a little help from me and others, but they did 99% of the work so they
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deserve their names here in the news.)
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psycopg now supports both classic select() loops and "green" coroutine
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libraries. It is all in the documentation, so just point your browser to
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doc/html/advanced.html.
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* Other new features:
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- truncate() method for lobjects.
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- COPY functions are now a little bit faster.
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- All builtin PostgreSQL to Python typecasters are now available from the
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psycopg2.extensions module.
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- Notifications from the backend are now available right after the execute()
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call (before client code needed to call isbusy() to ensure NOTIFY
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reception.)
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- Better timezone support.
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- Lots of documentation updates.
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* Bug fixes:
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- Fixed some gc/refcounting problems.
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- Fixed reference leak in NOTIFY reception.
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- Fixed problem with PostgreSQL not casting string literals to the correct
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types in some situations: psycopg now add an explicit cast to dates, times
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and bytea representations.
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- Fixed TimestampFromTicks() and TimeFromTicks() for seconds >= 59.5.
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- Fixed spurious exception raised when calling C typecasters from Python
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ones.
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