/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/reflection.py:47: SAWarning: Skipped unsupported reflection of expression-based index idx_pkg_lname
  ret = fn(self, con, *args, **kw)
/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/reflection.py:47: SAWarning: Skipped unsupported reflection of expression-based index idx_pkg_slname
  ret = fn(self, con, *args, **kw)
/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/reflection.py:47: SAWarning: Skipped unsupported reflection of expression-based index idx_pkg_suname
  ret = fn(self, con, *args, **kw)
/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/reflection.py:47: SAWarning: Skipped unsupported reflection of expression-based index idx_pkg_uname
  ret = fn(self, con, *args, **kw)
Traceback (most recent call last):
  File "/usr/lib/ckan/default/bin/paster", line 9, in <module>
    load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 104, in run
    invoke(command, command_name, options, args[1:])
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 143, in invoke
    exit_code = runner.run(args)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 238, in run
    result = self.command()
  File "/usr/lib/ckan/default/src/ckan/ckan/lib/cli.py", line 168, in command
    model.repo.upgrade_db()
  File "/usr/lib/ckan/default/src/ckan/ckan/model/__init__.py", line 329, in upgrade_db
    mig.upgrade(self.metadata.bind, self.migrate_repository, version=version)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/versioning/api.py", line 186, in upgrade
    return _migrate(url, repository, version, upgrade=True, err=err, **opts)
  File "<string>", line 2, in _migrate
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/versioning/util/__init__.py", line 159, in with_engine
    return f(*a, **kw)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/versioning/api.py", line 366, in _migrate
    schema.runchange(ver, change, changeset.step)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/versioning/schema.py", line 91, in runchange
    change.run(self.engine, step)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/versioning/script/py.py", line 145, in run
    script_func(engine)
  File "/usr/lib/ckan/default/src/ckan/ckan/migration/versions/002_add_author_and_maintainer.py", line 27, in upgrade
    col.create(package)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/changeset/schema.py", line 528, in create
    engine._run_visitor(visitorcallable, self, connection, **kwargs)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2303, in _run_visitor
    conn._run_visitor(visitorcallable, element, **kwargs)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1973, in _run_visitor
    **kwargs).traverse_single(element)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/changeset/ansisql.py", line 53, in traverse_single
    ret = super(AlterTableVisitor, self).traverse_single(elem)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/sql/visitors.py", line 106, in traverse_single
    return meth(obj, **kw)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/changeset/ansisql.py", line 101, in visit_column
    self.execute()
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/migrate/changeset/ansisql.py", line 42, in execute
    return self.connection.execute(self.buffer.getvalue())
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1449, in execute
    params)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1628, in _execute_text
    statement, parameters
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1698, in _execute_context
    context)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1691, in _execute_context
    context)
  File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 331, in do_execute
    cursor.execute(statement, parameters)
sqlalchemy.exc.ProgrammingError: (ProgrammingError) column "author" of relation "package" already exists
 '\nALTER TABLE package ADD author TEXT' {}