sqlalchemy date type in 0.6 migration using mssql
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by nosklo
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Published on 2010-06-08T21:28:08Z
Indexed on
2010/06/08
21:32 UTC
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I'm connection to mssql server through pyodbc, via FreeTDS odbc driver, on linux ubuntu 10.04.
Sqlalchemy 0.5 uses DATETIME
for sqlalchemy.Date()
fields.
Now Sqlalchemy 0.6 uses DATE
, but sql server 2000 doesn't have a DATE
type. How can I make DATETIME
be the default for sqlalchemy.Date()
on sqlalchemy 0.6 mssql+pyodbc
dialect?
I'd like to keep it as clean as possible.
Here's code to reproduce the issue:
import sqlalchemy
from sqlalchemy import Table, Column, MetaData, Date, Integer, create_engine
engine = create_engine(
'mssql+pyodbc://sa:sa@myserver/mydb?driver=FreeTDS')
m = MetaData(bind=engine)
tb = sqlalchemy.Table('test_date', m,
Column('id', Integer, primary_key=True),
Column('dt', Date())
)
tb.create()
And here is the traceback I'm getting:
Traceback (most recent call last):
File "/tmp/teste.py", line 15, in <module>
tb.create()
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/schema.py", line 428, in create
bind.create(self, checkfirst=checkfirst)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1647, in create
connection=connection, **kwargs)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1682, in _run_visitor
**kwargs).traverse_single(element)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/sql/visitors.py", line 77, in traverse_single
return meth(obj, **kw)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/ddl.py", line 58, in visit_table
self.connection.execute(schema.CreateTable(table))
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1157, in execute
params)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1210, in _execute_ddl
return self.__execute_context(context)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1268, in __execute_context
context.parameters[0], context=context)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1367, in _cursor_execute
context)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/base.py", line 1360, in _cursor_execute
context)
File "/home/nosklo/.local/lib/python2.6/site-packages/sqlalchemy/engine/default.py", line 277, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.ProgrammingError: (ProgrammingError)
('42000', '[42000] [FreeTDS][SQL Server]Column or parameter #2:
Cannot find data type DATE. (2715)
(SQLExecDirectW)')
'\nCREATE TABLE test_date (\n\tid INTEGER NOT NULL IDENTITY(1,1),
\n\tdt DATE NULL, \n\tPRIMARY KEY (id)\n)\n\n' ()
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