问题描述

INFO  [alembic.runtime.migration] Context impl SQLiteImpl.
INFO  [alembic.runtime.migration] Will assume transactional DDL.
INFO  [alembic.runtime.migration] Running upgrade bddc498dd179 -> 4451805bbaa1, remove double percents
Traceback (most recent call last):
  File "/opt/venv/bin/superset", line 15, in <module>
    cli()
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/flask/cli.py", line 380, in main
    return AppGroup.main(self, *args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/flask/cli.py", line 257, in decorator
    return __ctx.invoke(f, *args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/flask_migrate/cli.py", line 134, in upgrade
    _upgrade(directory, revision, sql, tag, x_arg)
  File "/opt/venv/lib/python3.6/site-packages/flask_migrate/__init__.py", line 95, in wrapped
    f(*args, **kwargs)
  File "/opt/venv/lib/python3.6/site-packages/flask_migrate/__init__.py", line 280, in upgrade
    command.upgrade(config, revision, sql=sql, tag=tag)
  File "/opt/venv/lib/python3.6/site-packages/alembic/command.py", line 276, in upgrade
    script.run_env()
  File "/opt/venv/lib/python3.6/site-packages/alembic/script/base.py", line 475, in run_env
    util.load_python_file(self.dir, "env.py")
  File "/opt/venv/lib/python3.6/site-packages/alembic/util/pyfiles.py", line 90, in load_python_file
    module = load_module_py(module_id, path)
  File "/opt/venv/lib/python3.6/site-packages/alembic/util/compat.py", line 156, in load_module_py
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/opt/venv/lib/python3.6/site-packages/superset/migrations/env.py", line 100, in <module>
    run_migrations_online()
  File "/opt/venv/lib/python3.6/site-packages/superset/migrations/env.py", line 93, in run_migrations_online
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File "/opt/venv/lib/python3.6/site-packages/alembic/runtime/environment.py", line 839, in run_migrations
    self.get_context().run_migrations(**kw)
  File "/opt/venv/lib/python3.6/site-packages/alembic/runtime/migration.py", line 361, in run_migrations
    step.migration_fn(**kw)
  File "/opt/venv/lib/python3.6/site-packages/superset/migrations/versions/4451805bbaa1_remove_double_percents.py", line 82, in upgrade
    replace('%%', '%')
  File "/opt/venv/lib/python3.6/site-packages/superset/migrations/versions/4451805bbaa1_remove_double_percents.py", line 53, in replace
    .join(Table)
  File "/opt/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 2235, in join
    from_joinpoint=from_joinpoint,
  File "<string>", line 2, in _join
  File "/opt/venv/lib/python3.6/site-packages/sqlalchemy/orm/base.py", line 220, in generate
    fn(self, *args[1:], **kw)
  File "/opt/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 2414, in _join
    left, right, onclause, prop, create_aliases, outerjoin, full
  File "/opt/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 2437, in _join_left_to_right
    ) = self._join_determine_implicit_left_side(left, right, onclause)
  File "/opt/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 2568, in _join_determine_implicit_left_side
    "Can't determine which FROM clause to join "
sqlalchemy.exc.InvalidRequestError: Can't determine which FROM clause to join from, there are multiple FROMS which can join to this entity. Try adding an explicit ON clause to help resolve the ambiguity.

这个怎么解决？希望大神指导一下。