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Code Issues 25 Releases Wiki Activity

Fixed #3459: Django no longer runs SET TIME ZONE for every query when using Postgres. This should result in a pretty noticible speedup for Postgres users, so many thanks to Jack Moffitt for the patch.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@4573 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jacob Kaplan-Moss 2007-02-25 16:18:46 +00:00
parent 5c17b42772
commit dcdaa4ac3c
2 changed files with 8 additions and 2 deletions
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5
django/db/backends/postgresql/base.py
View File

@ -60,7 +60,9 @@ class DatabaseWrapper(local):
def cursor(self):
from django.conf import settings
set_tz = False
if self.connection is None:
set_tz = True
if settings.DATABASE_NAME == '':
from django.core.exceptions import ImproperlyConfigured
raise ImproperlyConfigured, "You need to specify DATABASE_NAME in your Django settings file."
@ -76,7 +78,8 @@ class DatabaseWrapper(local):
self.connection = Database.connect(conn_string, **self.options)
self.connection.set_isolation_level(1) # make transactions transparent to all cursors
cursor = self.connection.cursor()
cursor.execute("SET TIME ZONE %s", [settings.TIME_ZONE])
if set_tz:
cursor.execute("SET TIME ZONE %s", [settings.TIME_ZONE])
cursor = UnicodeCursorWrapper(cursor, settings.DEFAULT_CHARSET)
if settings.DEBUG:
return util.CursorDebugWrapper(cursor, self)

5
django/db/backends/postgresql_psycopg2/base.py
View File

@ -28,7 +28,9 @@ class DatabaseWrapper(local):
def cursor(self):
from django.conf import settings
set_tz = False
if self.connection is None:
set_tz = True
if settings.DATABASE_NAME == '':
from django.core.exceptions import ImproperlyConfigured
raise ImproperlyConfigured, "You need to specify DATABASE_NAME in your Django settings file."
@ -45,7 +47,8 @@ class DatabaseWrapper(local):
self.connection.set_isolation_level(1) # make transactions transparent to all cursors
cursor = self.connection.cursor()
cursor.tzinfo_factory = None
cursor.execute("SET TIME ZONE %s", [settings.TIME_ZONE])
if set_tz:
cursor.execute("SET TIME ZONE %s", [settings.TIME_ZONE])
if settings.DEBUG:
return util.CursorDebugWrapper(cursor, self)
return cursor