我无法将任何数据添加到我的数据库中。它允许我修改表中的条目，但是任何将在数据库中创建新行或新列的操作都会神秘地失败。这是堆栈跟踪：
Traceback (most recent call last):
File "manage.py", line 25, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/core/management/__init__.py", line 443, in execute_from_command_line
utility.execute()
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/core/management/__init__.py", line 382, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/core/management/base.py", line 196, in run_from_argv
self.execute(*args, **options.__dict__)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/core/management/base.py", line 232, in execute
output = self.handle(*args, **options)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/management/commands/migrate.py", line 107, in handle
ignore_ghosts = ignore_ghosts,
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/__init__.py", line 219, in migrate_app
success = migrator.migrate_many(target, workplan, database)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/migrators.py", line 235, in migrate_many
result = migrator.__class__.migrate_many(migrator, target, migrations, database)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/migrators.py", line 310, in migrate_many
result = self.migrate(migration, database)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/migrators.py", line 134, in migrate
self.done_migrate(migration, database)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/migrators.py", line 113, in done_migrate
self.record(migration, database)
File "/usr/local/python2.7/lib/python2.7/site-packages/South-0.7.4-py2.7.egg/south/migration/migrators.py", line 280, in record
record.save()
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/models/base.py", line 463, in save
self.save_base(using=using, force_insert=force_insert, force_update=force_update)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/models/base.py", line 551, in save_base
result = manager._insert([self], fields=fields, return_id=update_pk, using=using, raw=raw)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/models/manager.py", line 203, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/models/query.py", line 1576, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/models/sql/compiler.py", line 910, in execute_sql
cursor.execute(sql, params)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/backends/util.py", line 40, in execute
return self.cursor.execute(sql, params)
File "/usr/local/python2.7/lib/python2.7/site-packages/Django-1.4-py2.7.egg/django/db/backends/postgresql_psycopg2/base.py", line 52, in execute
return self.cursor.execute(query, args)
django.db.utils.DatabaseError: syntax error at or near "RETURNING" at character 171
在我将数据库迁移到另一台服务器之前，它工作正常。现在我遇到了各种各样的麻烦，我不确定该怎么办。此外，如果尝试将字段添加到数据库中，South 似乎也会发生这种情况。奇怪的是，修改数据库中现有的对象/列成功而没有失败。我真的不确定该怎么做，并希望得到任何帮助。