Rails - Jun 2009 - activerecord-sqlserver-adapter-2.2.19 bug: text col limits

All,

Rails 2.1.0
AR SQL Server Adapter 2.2.19

I use the AR session store in my application.  When I upgraded to the
latest version of the SQL Server Adapter, my app. stopped working
because supposedly my session data wouldn''t fit into the
"data" TEXT
column in my sessions table.

This block of code from
actionpack-2.1.0/lib/action_controller/session/active_record_store.rb
was being executed:

def raise_on_session_data_overflow!
  return false if !loaded?
  limit = self.class.data_column_size_limit
  if loaded? and limit and read_attribute(@@data_column_name).size >
limit
    raise ActionController::SessionOverflowError
  end
end

I verified that my session data was 122 bytes and
self.class.data_column_size_limit was being reported as 16 (!).

I don''t have time to look into what is going on here in more detail,
but
I suspect that text field sizes/limits are not being reported correctly
by the current version of the adapter.

For now, I will rollback to the version of the adapter that I have that
works.

Thanks,
Wes
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