単純なクエリを実行しようとすると、次のエラーが発生します。何が変わったのかわからない。
sqlalchemy（Elixir）クラスの例を次に示します。
class Song(Entity):
using_options(tablename='tbSongs', autoload=True)
using_table_options(schema='apra')
データベース接続は正常であり、クラスは正常に構築されdir(Song)ます。これは、すべての正しい列を実行して表示できるためです。ただし、単純なクエリは機能しません。
そのクラスに対するクエリと結果の出力は次のとおりです。
>>> songs = Song.query.all()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 1729, in all
return list(self)
File "/usr/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 1839, in __iter__
return self._execute_and_instances(context)
File "/usr/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 1854, in _execute_and_instances
result = conn.execute(querycontext.statement, self._params)
File "/usr/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1399, in execute
params)
File "/usr/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1532, in _execute_clauseelement
compiled_sql, distilled_params
File "/usr/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1640, in _execute_context
context)
File "/usr/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1633, in _execute_context
context)
File "/usr/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 325, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.DBAPIError: (Error) ('IM001', '[IM001] [unixODBC][Driver Manager]Driver does not support this function (0) (SQLColAttribute)') 'SELECT [tbSongs_1].[ID_Song] AS [apra_tbSongs_ID_Song], [tbSongs_1].[Album] AS [apra_tbSongs_Album], [tbSongs_1].[Title] AS [apra_tbSongs_Title], [tbSongs_1].[Composer] AS [apra_tbSongs_Composer], [tbSongs_1].[Performer] AS [apra_tbSongs_Performer], [tbSongs_1].[TrackNumber] AS [apra_tbSongs_TrackNumber], [tbSongs_1].[Duration] AS [apra_tbSongs_Duration], [tbSongs_1].[RecordLabel] AS [apra_tbSongs_RecordLabel], [tbSongs_1].[Notes] AS [apra_tbSongs_Notes], [tbSongs_1].[Class] AS [apra_tbSongs_Class], [tbSongs_1].[SongID] AS [apra_tbSongs_SongID], [tbSongs_1].[Deleted] AS [apra_tbSongs_Deleted] \nFROM apra.[tbSongs] AS [tbSongs_1]' ()
>>>
セットアップの詳細：
- 32ビットArchLinux
- Python 2.7.2
- sqlalchemy 0.7.2
- エリクサー0.7.1
- FreeTDS 0.82-5
- unixodbc 2.3.0-1
/etc/odbcinst.ini：
[ODBC Drivers]
tds = Installed
[tds]
Driver = /usr/lib/libtdsodbc.so
Setup = /usr/lib/libtdsodbc.so
/etc/odbc.ini：
[ODBC]
Trace = 0
[DBNAME]
Driver = TDS
Trace = No
Server = xx.xx.xx.xx\dbname
Database = dbname
Port = 1433