psycopg2/ChangeLog

2005-05-26  Federico Di Gregorio  <fog@debian.org>

	* Release 2.0b3.

	* ZPsycopgDA/db.py (DB.convert_description): isolated description
	conversion (and fixed the conversion as per #18).

	* ZPsycopgDA/DA.py: fixed again; this time Zope should work for
	real. :/  Also fixed the type-casters (psycopg 2 added the extra
	cursor parameter) as reported in #18.

	* psycopg/psycopgmodule.c (init_psycopg): fixed Python 2.2 build. 

2005-05-19  Federico Di Gregorio  <fog@debian.org>

	* Release 2.0b2.
	
	* lib/extras.py (DictRow): Some extra methods for DictRow.

	* psycopg/cursor_type.c (_psyco_curs_execute): added explict check
	to avoid using None as bound variables (very importand for cursor
	subclasses calling cursor.execute(self, query, None).

2005-05-18  Federico Di Gregorio  <fog@debian.org>

	* ZPsycopgDA/DA.py (ALLOWED_PSYCOPG_VERSIONS): updated to work
	with 2.0b2 only (will support only the exact version untill final
	2.0 release.)

	* setup.py: Applied combined patch from Daniele Varrazzo and Jason
	Erickson to build on win32 using MSVC or mingw.

2005-05-15  Federico Di Gregorio  <fog@debian.org>

	* psycopg/microprotocols.c (microprotocols_adapt): fixed memory
	leak on None as suggested by gh (closes: #16).

2005-05-10  Federico Di Gregorio  <fog@debian.org>

	* lib/extras.py (DictRow): we now save a reference to the index
	itself and not to the cursor to avoid problems while accessing
	DictRow objects after reusing the cursor for a different query
	(using  Kevin Jacobs db_row would be much better but DictRow is
	just an example, right?)

2005-05-09  Federico Di Gregorio  <fog@debian.org>

	* Release 2.0 beta 1.

	* psycopg/typecast_datetime.c (typecast_PYDATETIME_cast): fixed a
	typo (pyDateTimeModuleP->pyDateTimeTypeP) that was causing errors
	with infinite datetime values.

	* psycopg/adapter_binary.c (binary_str): Py_XINCREF on the buffer
	that can be NULL on error.

	* psycopg/typecast_binary.*: applied slightly modified
	chunk/buffer object patch to allow round-trip of buffer objects
	(BYTEA columns.) 

	* psycopg/cursor_type.c (psyco_curs_executemany): applied slightly
	fixed patch from wrobell to allow iterators in .executemany().

2005-04-18  Federico Di Gregorio  <fog@debian.org>

	* MANIFEST.in: included debian directory.

2005-04-10  Federico Di Gregorio  <fog@debian.org>

	* psycopg/adapter_list.*: added list adapter. 

	* psycopg/microprotocols.c (microprotocol_getquoted): moved
	_mogrify_getquoted into utility function in the microprotocols
	library.

	* setup.py: Added extensive error message on missing datetime
	headers.

	* Applied mingw patch from Daniele Varazzo. 

2005-04-03  Federico Di Gregorio  <fog@debian.org>

	* lib/psycopg1.py (connection.autocommit): added compatibility
	.autocommit() method.

	* psycopg/psycopgmodule.c (psyco_connect): factory ->
	connection_factory.

	* lib/psycopg1.py: added psycopg 1.1.x compatibility module.

2005-03-29  Federico Di Gregorio  <fog@debian.org>

	* Applied patch to fix tuple count.
	
	* psycopg/pqpath.c (pq_is_busy): Staring from bug report from
	Jason Erickson fixed segfaults due to calling Python function
	without holding the GIL.
 
2005-03-24  Federico Di Gregorio  <fog@debian.org>

	* psycopg/adapter_binary.c (binary_escape): propagated Andrea's
	fix to binary adapter.

	* psycopg/adapter_qstring.c (qstring_quote): applied patch from
	Andrea Arcangeli to fix allocation failures (>4Gb) on 64 bit
	arches.

	* psycopg/typecast_array.c (typecast_array_tokenize): much better
	tokenization code.

2005-03-23  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_basic.c: all the basic casters now respect the
	passed string length.

	* psycopg/typecast.c (typecast_cast): set curs->caster to self
	during the type-casting.

	* psycopg/cursor_type.c: added "typecaster" attribute to the
	cursor (this is safe, cursors can't be shared among threads and
	the attribute is RO.)

2005-03-22  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_array.c: added some more structure to implement
	array typecasting.

	* scripts/buildtypes.py: new version to include array data.

2005-03-15  Federico Di Gregorio  <fog@debian.org>

	* lib/extensions.py: Added AsIs import.

2005-03-12  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor.h: removed "qattr", not used anymore and added
	"cast", holding the typecaster currently in use.

	* Release 1.99.13.

	* psycopg/cursor_type.c (psyco_curs_executemany): implemented as a
	wrapper to extract python arguments and then call
	_psyco_curs_execute().

	* psycopg/cursor_type.c (_psyco_curs_execute): splitted away
	python argument parsing from the real execute code, to later allow
	for .executemany().

	* psycopg/cursor_type.c (_psyco_curs_buildrow_fill): modified to
	call typecast_cast().
	
	* psycopg/typecast.c (typecast_call/typecast_cast): modified
	typecast_call to use the new typecast_cast that avoids one string
	conversion on every cast.

2005-03-04  Federico Di Gregorio  <fog@initd.org>

	* Release 1.99.12.1.

	* psycopg/adapter_asis.c (asis_str): changed call to PyObject_Repr
	to PyObject_Str to avoid problems with long integers.

2005-03-03  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast.h: added array casting functions.

	* scripts/maketypes.sh: does not generate pgversion.h anymore. 

	* Updated all examples for the release.

2005-03-02  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.12.
	
	* psycopg/adapter_*.c: added __conform__ to all adapters.
	
	* psycopg/adapter_qstring.c (qstring_quote): we now use
	PyString_AsStringAndSize() instead of strlen() that would stop at
	the first embedded \0 (but note that libpq quoting function will
	truncate the string anyway!)
	
	* COPY TO implemented using both old and new (v3) protocol.

	* psycopg/pqpath.c (_pq_copy_out_v3): implemented and working.

	* psycopg/cursor_type.c (psyco_curs_copy_to): added cursor object
	interface for copy_to.

	* COPY FROM implemented using both old and new (v3) protocol.

	* psycopg/config.h (Dprintf): declaration for asprintf is gone.

	* psycopg/pqpath.c (_pq_copy_in_v3): implemented.

2005-03-01  Federico Di Gregorio  <fog@debian.org>

	* setup.py: now we generate a slighly more verbose version string
	that embeds some of the compile options, to facilitate users' bug
	reports.

	* psycopg/cursor_type.c (psyco_curs_copy_from): we now use
	PyOS_snprintf instead of asprintf. On some platforms this can be
	bad (win32).. if that's your case, get a better platform. :/

	* psycopg/microprotocols.c (microprotocols_adapt): fixed small
	typo that made adaptation using __conform__ impossible.

2005-02-28  Federico Di Gregorio  <fog@debian.org>

	* lib/extras.py: removed AsIs adapter (now a built-in); also
	removed prepare() method from the adapters that don't use it to
	avoid an extra method call at mogrification time.

	* psycopg/psycopgmodule.c (psyco_adapters_init): added
	initialization of the AsIs adapter (adapts int, long, float and
	*wonder* None!)

	* psycopg/cursor_type.c (_mogrify_getquoted): reorganized the code
	to adapt and then call .getquoted() to obtain the quoted data into
	this new function.

2005-2-27  Federico Di Gregorio  <fog@initd.org>

	* examples/myfirstrecipe.py: fixed adapter registration. 

2005-2-7  Federico Di Gregorio  <fog@initd.org>

	* setup.py: added patch by Valentino Volonghi to build on MacOS X.

2005-01-29  Federico Di Gregorio  <fog@debian.org>

	* psycopg/pqpath.c (_pq_fetch_tuples): fixed scale-related
	segfault (*fourth* mail from Andrea. Another couple like this and
	psycopg 2 will exit alpha at warp speed.)
	
	* psycopg/pqpath.c (pq_fetch): _pq_copy_out_3 -> _pq_copy_out_v3
	(second and third mail from Andrea. :/)

	* psycopg/cursor_type.c (_psyco_curs_has_write_check): added check
	on .write() attribute, fixed compilation problems (first mail from
	Andrea Arcangeli.)

2005-01-20  Federico Di Gregorio  <fog@debian.org>

	* lib/extensions.py (register_adapter): added register_adapter
	function, exported ISQLQuote in psycopg.extensions.

2005-01-18  Federico Di Gregorio  <fog@debian.org>

	* psycopg/pqpath.c (_pq_fetch_tuples): ported scale/precision fix
	from psycopg 1.1.

	* LICENSE: detailed licensing information. Re-licensed some parts
	under BSD-like to allow integration is pysqlite.

2005-01-13  Federico Di Gregorio  <fog@debian.org>

	* ZPsycopgDA/db.py (DB.query
	): ported ZPsycopgDA connection fix
	from psycopg 1.1.

	* lib/*.py: added pydoc-friendly messages.

2005-01-12  Federico Di Gregorio  <fog@debian.org>

	* Added debian directory (thanks to W. Borgert who sent initial
	patch based on cdbs.)

2004-12-20  Federico Di Gregorio  <fog@debian.org>

	* psycopg/pqpath.c (pq_execute): removed multiple calls to
	pq_fetch in syncronous DBAPI compatibility mode to solve rowcount
	problem.

2004-12-14  Federico Di Gregorio  <fog@debian.org>

	* Mm.. release 1.99.11.

	* psycopg/cursor_type.c (_psyco_curs_prefetch): fixed bug in
	interaction between the .isready() method and
	_psyco_curs_prefetch: isready now store away the pgres but leave
	prefetch do its work.

	* psycopg/*.c: changed the names of most of the psycopg's built-in
	types to replect their position in the psycopg._psycopg module.

2004-12-10  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c: now *all* write or async accesses to the
	connection object are arbitrated using the connection lock.
	
	* psycopg/cursor_type.c (psyco_curs_isready): now we reset the
	current async cursor if it is ready, to allow other cursors to
	.execute() without raising the "transaction in progress" error.

	* psycopg/pqpath.c (pq_is_busy): gained status of high-level
	function with its own blocking and locking.

	* psycopg/cursor.h (EXC_IF_CURS_CLOSED): also checks the
	connection (a closed connection implies a closed cursor.)

	* psycopg/cursor_type.c: cursor's connection is correctly
	INCREFfed and DECREFfed.

	* psycopg/connection_type.c: removed the cursors list from the
	connection object. It is not necessary anymore for the connection
	to know about the cursors and the reference counting will keep the
	connection alive (but possibly closed) until all cursors are
	garbage collected.

2004-11-20  Federico Di Gregorio  <fog@initd.org>

	* psycopg/cursor_type.c (_mogrify): ported %% fix from 1.1.15. 

2004-11-20  Federico Di Gregorio  <fog@initd.org>

	* psycopg/cursor_type.c (psyco_curs_execute): added check to raise an
	exception if a cursor tries to .execute() while an async query is
	already in execution froma  different cursor. 

2004-11-20  Federico Di Gregorio  <fog@debian.org>

	* psycopg/connection_type.c (psyco_conn_cursor): renamed 'cursor'
	argument to 'cursor_factory'.

2004-11-19  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (_psyco_curs_buildrow_fill): now standard
	tuples are filled using PyTuple_SET_ITEM while extended types
	(created via row_factory) are filled using PySequence_SetItem.
	
	* psycopg/cursor_type.c: changed cursor attribute name from
	tuple_factory to row_factory.

2004-10-14  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (_psyco_curs_buildrow_fill): now we use
	PySequence_SetItem to avoid problems with containers created from
	cursor's .tuple_factory attribute.

	* lib/extras.py (DictCursor.execute): fixed stupid bug with cursor
	setting self.tuplefactory instead of self.tuple_factory.

2004-10-02  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.10.
	
	* psycopg/cursor_type.c (_psyco_curs_buildrow_*): unified normal
	and factory code into the _psyco_curs_buildrow_fill function; no
	more memory leaks here. 

	* psycopg/config.h (round): added check for __FreeBSD__ (that
	should be defined when compiling with gcc, I hope.)

	* setup.py: removed a lot of code now in setup.cfg.

2004-09-24  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (cursor_dealloc): fixed small memory leak
	due to missing disposal of self->pgres.

2004-9-14  Federico Di Gregorio  <fog@initd.org>

	*  examples/dialtone.py: Added adapt() example by Valentino
	Volonghi.

2004-09-14  Federico Di Gregorio  <fog@debian.org>

	* psycopg/microprotocols.c (microprotocols_adapt): lots of changes
	to the microprotocols layer (it is not micro anymore);
	implementing almost all the PEP 246. The adapter registry is now
	indexed by (type, protocol) and not by type alone.

2004-09-13  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (_mogrify): and qattr is gone.

2004-09-05  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.9 (or, the "twisting by the pool" release).

	* psycopg/pqpath.c (_pq_fetch_tuples): changed to "static void"
	instead of "static int", no ways for this function to fail.

2004-09-04  Federico Di Gregorio  <fog@debian.org>

	* psycopg/pqpath.c (_pq_fetch_tuples): ported rowcount fix from
	1.1.15.

	* ZPsycopgDA/*: ZPsycopgDA back in action, using the new pooling
	code.

2004-08-29  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_basic.c (typecast_DECIMAL_cast): added DECIMAL
	typecaster; it even works :).

	* scripts/buildtypes.py (basic_types): added DECIMAL typecaster
	for the NUMERIC oid.

	* examples/threads.py: updated threads example to use pooling code. 

	* lib/pool.py: added very simple and thread-safe connection
	pooling class.

	* psycopg/cursor_type.c (psyco_curs_fetchmany): fixed problem with
	.fetchall() and .fetchmany() returning None instead of [] on empty
	result sets.

	* Release 1.99.8.

2004-08-28  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (psyco_curs_execute): added processing of
	unicode queries.

	* examples/encoding.py: much better encoding example, also using
	the new UNICODE typecaster.

	* psycopg/typecast_basic.c (typecast_UNICODE_cast): added UNICODE
	typecaster.

	* lib/extensions.py: the encodings dictionary is not available by
	default but can be accessed from the psycopg.extensions module.

	* psycopg/adapter_qstring.h: remove encoding information from
	qstring adapter and moved it into psycopg module.

2004-08-26  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (_psyco_curs_prefetch): added check for
	asynchronous fetch by wrong cursor.

	* psycopg/pqpath.c (pq_fetch): fixed backend status message (bug
	reported by Daniele Varrazzo.)

2004-07-29  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_basic.c (typecast_BINARY_cast): reverted to
	using strings instead of buffers when converting postgresql binary
	objects (should *temporarily* fix corruption bug reported on
	win32.)

2004-07-21  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c: removed __iter__ and next methods from
	object methods and moved them where they do belong (tp_iter and
	tp_iternext.) Bug reported by Daniele Varrazzo (again!)

2004-07-19  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_datetime.c (typecast_PYINTERVAL_cast): replaced
	round() with micro() when rounding seconds (fixes bugs reported by
	Daniele Varrazzo.)

2004-07-16  Federico Di Gregorio  <fog@debian.org>

	* psycopg/pqpath.c (pq_set_critical): allow for a custom message
	insted of the one from PQerrorMessage.
	(pq_resolve_critical): added argument to specify if connection is
	to be closed (used to not close it during COPY FROM/TO criticals.)

	* psycopg/cursor_type.c (psyco_curs_fileno, psyco_curs_isready):
	added extension methods related to async queries. 

2004-07-15  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.7.

	* examples/tz.py: added example about time zones.

	* psycopg/typecast_datetime.c (typecast_PYDATETIME_cast): create
	FixedOffsetTimezone for postgresql "timestamp with time zone"
	types.

	* lib/tz.py: added (even more than) needed tzinfo classes.

	* psycopg/typecast.c (typecast_call): changed typecast call code
	to take the additional cursor parameter, needed for
	cursor-dependent type casting (tzinfo & friends.)

	* psycopg/cursor_type.c (_psyco_curs_buildrow_with_factory): added
	use of tuple factories to fetcXXX methods.

	* lib/extras.py: little extra goodies for psycopg.

2004-07-14  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.6. 
	
	* psycopg/connection_type.c: added .dsn attribute to connection
	objects.

	* psycopg/cursor_type.c (psyco_curs_mogrify): added .mogrify()
	method.

	* psycopg/adapter_qstring.c: copy the connection encoding only if
	wrapped object is unicode and added table of encodings.

2004-07-13  Federico Di Gregorio  <fog@debian.org>

	* psycopg/cursor_type.c (_mogrify): moved Dprintf statement to
	avoid dereferencing empty pointer (from 1.1.x)
	(psyco_curs_execute): now we save the query in self->query instead
	of freeing the memory ASAP.
	(cursorObject_members): and we finally export the saved query
	through the cursor members interface. that's all folks.

	* lib/extensions.py: added extensions module to clearly separate
	psycopg own extensions from DBAPI-2.0

2004-07-10  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_datetime.c: ported interval fix from 1.1.x.

2004-05-16  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_datetime.c (typecast_*_cast): fixed Value error
	when seconds > 59 by setting minutes += 1 and seconds -= 60
	(reported by Marcel Gsteiger.) 

2004-04-24  Federico Di Gregorio  <fog@debian.org>

	* ported time interval patch by Ross Cohen from 1.1.12.

2004-04-19  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_datetime.c (typecast_PYDATE_cast): applied
	patch from Jason Erickson: min and max taken from datetime.Date
	type.
	
2004-04-18  Federico Di Gregorio  <fog@debian.org>

	* Applied changes from Jason Erickson to build on win32; see his
	(slightly edited) entry below. (Still builds on Linux :)

	* psycopg/*.c: removed inclusion of pthread.h from all files
	except psycopg/config.h to build on win32 without faking the file.

2004-04-15  Jason Erickson <jerickso@stickpeople.com>
 
        * setup.py: Various changes. The critical ones: 
	  - Make an empty pthread.h file so all the code doing an 
	    #include <pthread.h> will find something.
	  - Appended the winsock2 library and the PostgreSQL library to 
	    the library path.
	  - Setup the include path.
	  - Have the PSYCOPG_VERSION macro be included with quotes.
 
        * config.h: Added/Cleaned up Win32 includes, defines, stub functions.
 
        * typecast.h: Removed ';' after PyObject_HEAD in the
	typecastObject structure since Microsoft Visual Studio does not
	like it.

2004-04-15  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.5 (bug-fixing and reorganization)

	* setup.py et al.: moved psycopg to psycopg._psycopg to make
	easier to provide high level python-only utilities (like the
	promised pooling code). psycopg/__init__.py imports _psycopg and
	make all the default DBAPI-2.0 stuff available. 

2004-04-14  Federico Di Gregorio  <fog@debian.org>

	* psycopg/psycopgmodule.c (initpsycopg): wrapped initialization of
	date/time adapters in #ifdefs to have psycopg compile without mx
	or builtin datetime.

2004-04-10  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.4.

2004-04-09  Federico Di Gregorio  <fog@debian.org>

	* psycopg/typecast_builtins.c: changed DATE to not include
	DATETIME types anymore.

	* psycopg/adapter_datetime.c (pydatetime_str): switched from
	strftime to isoformat to preserve fractional seconds.

2004-04-08  Federico Di Gregorio  <fog@debian.org>

	* psycopg/psycopgmodule.c (psyco_connect): ported sslmode
	parameter from 1.1 branch.

	* psycopg/adapter_datetime.*: added python built-in datetime
	adapters. also added the datetime typecasters (still using mx as
	default).

	* psycopg/typecast.h: removed aliases, they now live in the right
	typecast_xxx.c file.

2004-03-08  Federico Di Gregorio  <fog@debian.org>

	* Release 1.99.3 (alpha 4).

	* examples/lastrowid.py: and the .lastrowid example is in. 

	* psycopg/cursor_type.c (_mogrify): added call to .prepare()
	method in both dict and sequence path.

	* psycopg/connection_int.c (conn_set_client_encoding): added
	encoding-change code.

	* psycopg/adapter_qstring.c (qstring_quote): added hard-coded
	support for utf8 and latin1 encodings.

2004-03-01  Federico Di Gregorio  <fog@debian.org>

	* psycopg/connection_int.c (conn_close): does not use libpq
	functions on NULL pgconn (this can happen when conn_close is
	called after a failed PQconnect.)

2004-02-29  Federico Di Gregorio  <fog@debian.org> 

	* Release 1.99.2 (alpha 3).
	
	* psycopg/cursor_type.c: added .rownumber and .connection
	attributes. Also added .scroll(), .next() and .__iter__() methods
	(see DBAPI2-.0 extensions on PEP.)

	* psycopg/connection_type.c (psyco_conn_set_isolation_level):
	added connection method .set_isolation_level(). Also added all
	error objects to the connection (see DBAPI2-.0 extensions on PEP.)

	* psycopg/connection_int.c (conn_switch_isolation_level): added
	isolation level switching code.

	* setup.py: removed all references to PSYCOPG_NEWSTYLE: support
	for python < 2.2 has been dropped.

	* typecast_basic.c (typecast_BINARY_cast): now binary objects are
	returned as true buffers.

	* adapter_binary.*: added adapter for buffers and binary (bytea)
	objects.

	* Release 1.99.1 (alpha 2).

	* adapter_mxdatetime.*: added adapters for all mx.DateTime types.

2004-02-28  Federico Di Gregorio  <fog@debian.org>

	* cursor_type.c (_mogrify): complete rework of the mogrification
	code to use the microprotocols_adapt function.

	* typecast_basic.c (typecast_BOOLEAN_cast): we now return real
	Py_True and Py_False values.

	* microprotocols.h: added very simple microprotocols
	implementation to allow for python->postgresql types registry.

2004-01-05  Federico Di Gregorio  <fog@debian.org>

	* connection_int.c (conn_commit/conn_rollback): added code to
	commit/rollback and connection methods. 

2004-01-04  Federico Di Gregorio  <fog@debian.org>

	* cursor_type.c (psyco_curs_fetchone): added fetchone method.

2004-01-03  Federico Di Gregorio  <fog@debian.org>

	* added (empty) INSTALL file.

	* cursor_type.c (cursor_dealloc): added qattr for custom object
	quoting using a callable attribute.
	(_mogrify): ported new, fixed mogrification code from 1.1.12.

2003-08-01  Federico Di Gregorio  <fog@debian.org>

	* cursor_type.c (_mogrify_sequence): added sequence mogrification,
	can be done better, on the dict model.

2003-07-28  Federico Di Gregorio  <fog@debian.org>

	* typeobj_qstring.c: added quoted strings (can use both own code,
	like psycopg 1.x or PQescapeString from lipq.)

2003-07-21  Federico Di Gregorio  <fog@debian.org>

	* connection_type.c (psyco_conn_close): added .close()
	method. wow.

	* cursor_*.c: added basic cursor interface (new-style.)

2003-07-20  Federico Di Gregorio  <fog@debian.org>

	* psycopg/*: beginning of new source layout. if you think this
	changelog is somewhat empty, you're right. look at
	doc/ChangeLog-1.x for psycopg 1.x changelog just before the
	branch.