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591 Commits

Author SHA1 Message Date
Daniele Varrazzo
db987250c8 Avoid installing Error.__reduce_ex__ on Python 2.4 
It is not used by the pickle protocol, and if called manually fails in an
unsettling way, probably because the exceptions were old-style classes.
 2012-01-14 18:01:15 +00:00
Daniele Varrazzo
43daba38e7 Make Error and subclasses picklable 
Useful for multiprocessing interaction.
Closes ticket #90.
 2012-01-14 17:34:09 +00:00
Daniele Varrazzo
6f21111a92 Docs/cleanup for the lo_creat patch 2012-01-10 21:51:34 +00:00
Giovanni Mascellani
e1700fe28b Use lo_creat() instead of lo_create() when creating large objects without new_oid. 
This enhances the compatibility with the pgpool-II replication middleware,
that doesn't support lo_create() calls.
 2012-01-10 20:49:58 +00:00
Daniele Varrazzo
dcc60131a9 fetchmany accepts None as size, meaning the default arraysize 
without this care, extending fetchmany in subclasses becomes tricky.

Closes ticket #84.
 2012-01-10 01:32:45 +00:00
Daniele Varrazzo
09a8e7bf1f Fixed cursor.fetchmany docstring 2012-01-10 01:28:14 +00:00
Daniele Varrazzo
d6e0b284e7 Map error classes 20 and HV to more specific exceptions 2011-12-16 12:26:27 +00:00
Daniele Varrazzo
ba7a0a3008 Raise DatabaseError instead of error with bad exception informations 
We can actually raise these exceptions in weird situations,
e.g. see ticket #82.
 2011-12-15 17:50:31 +00:00
Daniele Varrazzo
b5de04d2ff Put back a distinct ISOLATION_LEVEL_READ_UNCOMMITTED value 2011-12-15 12:53:48 +00:00
Federico Di Gregorio
d2d94e203f Reverted isolation level values to backward compatible values 
This basically removes the READ UNCOMMITED level (that internally
PostgreSQL maps to READ COMMITED anyway) to keep the numeric values
compattible with old psycopg versions. For full details and discussion
see this thread:
http://archives.postgresql.org/psycopg/2011-12/msg00008.php
 2011-12-15 12:25:19 +01:00
Daniele Varrazzo
088978e7b1 Typo fixed writeable -> writable 
Closes ticket #79.
 2011-12-11 02:55:29 +00:00
Daniele Varrazzo
ad3a198919 Fixed reference leak with arguments referenced more than once in queries 
Plus, some more care in objects life cycle, mostly in exceptions handling.

Closes ticket #81.
 2011-12-11 02:52:06 +00:00
Daniele Varrazzo
d2b67364fd connect() supports generic keyword arguments passed to the dsn 2011-11-17 01:51:25 +00:00
Daniele Varrazzo
dc94a3cb2d Check for connection closed before getting the isolation level 
Closes ticket #74

Also added test to check regressions in isolation_level,
set_isolation_level, set_session, autocommit.
 2011-11-16 23:51:05 +00:00
Daniele Varrazzo
a76d0525d1 Dropped unused variable 2011-11-01 07:42:22 +00:00
Daniele Varrazzo
2671472de8 Dropped leftover extra char, already accounted for before 2011-10-20 11:11:57 +01:00
Daniele Varrazzo
60b49f5c45 Avoid PyOS_snprintf to calculate the copy command buffer size 
On windows it returns -1 instead of sometihing portable. So just ditch
the static buffer and just use a dynamic one to compose the command.

Also squashed a couple of buglets in copy_to: copyfile was decremented
before being set to null, size_t was used instead of Py_ssize_t.
 2011-10-19 21:01:53 +01:00
Daniele Varrazzo
ff8158d7c0 Simplification in the COPY command composition 
Dropped the branch if NULL is specified or not: just use the default \N.

Also fixed copy_from/copy_to docstrings.
 2011-10-19 20:31:09 +01:00
Daniele Varrazzo
dde4c0de3d Decimal adapter registration moved from C to Python 
Fixes Decimal adaptation in sub-interpreter, where the Decimal class has
a different identity from the one in the main interpreter.

Closes ticket #52.
 2011-10-14 22:35:56 +01:00
Daniele Varrazzo
c4e6d7d982 Fixed typecasting of arrays containing consecutive backslashes 2011-09-22 18:14:16 +01:00
Daniele Varrazzo
e3054ac9f3 Added new_array_type() function 
Allows the creation of a generic array typecaster from Python.
 2011-09-22 15:51:21 +01:00
Daniele Varrazzo
8fb08efae7 Allocate dynamically memory for the list of columns in COPY 
Some bloke finds the limit of 8K too restrictive... ticket #68.
 2011-09-12 02:21:59 +01:00
Federico Di Gregorio
880aa07a58 WITH HOLD documentation a argument parsing changes 
Now any true value will do for the withhold parameter.
 2011-08-10 19:21:12 +02:00
Federico Di Gregorio
a59d88c703 Merge remote-tracking branch 'piro/devel' into devel 2011-08-10 18:36:24 +02:00
Federico Di Gregorio
479bdf7458 New 'withhold' parameter for connection.cursor() 2011-08-10 18:25:46 +02:00
Daniele Varrazzo
de6f2ac387 Grab the GIL when checking for errors occurred 
The problem was causing a segfault on BEGIN if the server is disconnected
after the connection is created.
 2011-08-09 11:44:30 +01:00
Federico Di Gregorio
2f6336ea78 First try at curs.withhold implementation 2011-07-05 10:28:34 +02:00
Daniele Varrazzo
d2b28abced Method set_transaction() renamed to set_session() 
In fact it doesn't change "the transaction", as there has to be no
transaction when invoked. The effect instead is to execute SET SESSION
CHARACTERISTICS.
 2011-06-08 14:22:11 +01:00
Daniele Varrazzo
1a51cfe274 Better error message if deferrable is used in PG < 9.1 2011-06-08 10:59:27 +01:00
Daniele Varrazzo
0a1bbb56cd Dropped redundant semicolons at the end of internal queries 
For consistency with other queries, and probably we give less work to do
to the server parser (a ridiculously tiny amount).
 2011-06-08 09:22:35 +01:00
Daniele Varrazzo
6d907df14d Fixed documentation for COPY methods 
The size parameter in copy_from was undocumented (ticket #59).
 2011-06-07 11:16:10 +01:00
Daniele Varrazzo
9b5ac79513 Fixed default size for read copy buffer 
The original commit stated it should have been 8192.
 2011-06-07 11:16:06 +01:00
Daniele Varrazzo
679af4a975 Fixed copyfile refcount in copy_expert 
In case of early error, jumping to exit would have decref'd the borrowed
reference to file.

Issue spotted by Dave Malcolm, thanks!
 2011-06-07 01:20:25 +01:00
Daniele Varrazzo
b6e710b0fc Fixed refcount bug in copy_to() and copy_expert() methods too 2011-06-07 00:08:29 +01:00
Daniele Varrazzo
1888bf41c0 Added patch for refcount bug in copy_from 
By Dave Malcolm. https://bugzilla.redhat.com/show_bug.cgi?id=711095
(slightly edited to increment the refcount before storing the pointer
in the cursor).
 2011-06-07 00:08:29 +01:00
Jason Erickson
dd7ee7093a No strcasecmp function with MSVC 
The MSVC compiler does not have the strcasecmp(x, y) function, which is a
case insensitve string compare function.  Instead, MSVC has a similar function,
lstrcmpi(x, y).  Modified config.h to use this function when building with
MSVC.
 2011-06-05 23:33:28 +01:00
Daniele Varrazzo
442a0606fe Merge branch 'guc-cleanup' into devel 2011-06-05 16:31:25 +01:00
Daniele Varrazzo
709df38d79 Don't clobber an eventual Python exception set by a green thread 2011-06-05 16:30:37 +01:00
Daniele Varrazzo
869d48b6f0 Use the pqpath functions to get/set GUC parameters 
Functions conn_setup(), conn_get_isolation_level(), conn_set_transaction(),
conn_switch_isolation_level(), conn_set_client_encoding() reimplemented
using the pqpath funtitons.

Dropped analogous function in the connection, as it had to take the lock,
thus it was hard to build consistent pieces of functionality with it.
 2011-06-05 16:26:01 +01:00
Daniele Varrazzo
8f876d4b5d Avoid a deadlock using concurrent green threads on the same connection 
Use the async_cursor property to store an indication that something is
running (even if it is not necessarily a cursor running the query).
 2011-06-05 16:22:54 +01:00
Daniele Varrazzo
cf6a4ec062 Added pqpath functions to get/set the value for GUC parameters 
The aim of these function is to allow the connection to make a better use
of the pqpath functions instead of using PQexec for these small things.
Also, the functions are to be called with the connection lock: this makes
composing higher level functions using them easier.
 2011-06-05 15:36:02 +01:00
Daniele Varrazzo
a0d16fcfb2 Avoid a ton of warnings when building on mingw 
mingw doesn't support visibility hidden even if gcc can.
 2011-06-04 22:19:56 +01:00
Daniele Varrazzo
c8ec747903 Don't fail import if mx.DateTime module is not found at import time 
A better fix for ticket #53.
 2011-06-04 14:16:24 +01:00
Daniele Varrazzo
05659c0d16 Cleanup of notice processing 
The function is always called in the context of functions grabbing the
connection lock, so just use the same critical section instead of releasing
and re-acquiring it. It is not a problem as serious as the notifies process
(ticket #55) as the notices are a psycopg structure, not libpq. However the
change allows again processing notices/notifies in the same place,
which makes sense conceptually, plus we save some lock dance.
 2011-06-04 01:49:03 +01:00
Daniele Varrazzo
d9c0b8166f Process notifies when data is received, not when the result is parsed 
Notifies process access the connection, is not limited to the result, so
There is the possibility of loss of protocol sync in multithread programs.

Closes ticket #55.
 2011-06-04 01:31:36 +01:00
Daniele Varrazzo
0eb5e0430e Merge branch 'transaction-control' into devel 2011-06-03 01:48:24 +01:00
Daniele Varrazzo
4d3c6865ee Use only the isolation levels available on old PG versions 2011-06-03 00:40:54 +01:00
Daniele Varrazzo
c2d1f1f2e6 Dropped isolation level from the connection object 
Don't issue a SET TRANSACTION ISOLATION LEVEL at every begin: use PG's
GUC default, eventually set by set_transaction.

Dropped the last query at connection, yay!

Method set_isolation_level() and property isolation_level refactored using
the new structures, keeping the previous semantic.
 2011-06-03 00:10:24 +01:00
Daniele Varrazzo
389f2cf1d0 Added autocommit property on connection 2011-06-02 01:16:22 +01:00
Daniele Varrazzo
ea03ffbf76 Added partial implementation for set_transaction 
autocommit to be implemented yet.
 2011-06-01 09:07:02 +01:00