Superset安装出错 sqlalchemy.exc.InvalidRequestError: Can't determine which FROM clause to join from, ...

$ superset db upgrade
 
...
 
Traceback (most recent call last):
 
 File "/home/jhadmin/.pyenv/versions/myenv-3.7.2/bin/superset", line 15, in <module>
 
 cli()
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 722, in __call__
 
 return self.main(*args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/flask/[cli.py](cli.py)", line 380, in main
 
 return AppGroup.main(self, *args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 697, in main
 
 rv = self.invoke(ctx)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 1066, in invoke
 
 return _process_result(sub_ctx.command.invoke(sub_ctx))
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 1066, in invoke
 
 return _process_result(sub_ctx.command.invoke(sub_ctx))
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 895, in invoke
 
 return ctx.invoke(self.callback, **ctx.params)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 535, in invoke
 return callback(*args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[decorators.py](decorators.py)", line 17, in new_func
 
 return f(get_current_context(), *args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/flask/[cli.py](cli.py)", line 257, in decorator
 
 return __ctx.invoke(f, *args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/click/[core.py](core.py)", line 535, in invoke
 
 return callback(*args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/flask_migrate/[cli.py](cli.py)", line 134, in upgrade
 
 _upgrade(directory, revision, sql, tag, x_arg)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/flask_migrate/__[init__.py](init__.py)", line 95, in wrapped
 
 f(*args, **kwargs)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/flask_migrate/__[init__.py](init__.py)", line 280, in upgrade
 
 command.upgrade(config, revision, sql=sql, tag=tag)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/[command.py](command.py)", line 276, in upgrade
 
 script.run_env()
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/script/[base.py](base.py)", line 475, in run_env
 util.load_python_file(self.dir, "[env.py](env.py)")
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/util/[pyfiles.py](pyfiles.py)", line 90, in load_python_file
 
 module = load_module_py(module_id, path)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/util/[compat.py](compat.py)", line 156, in load_module_py
 
 spec.loader.exec_module(module)
 
 File "<frozen importlib._bootstrap_external>", line 728, in exec_module
 
 File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/superset/migrations/[env.py](env.py)", line 100, in <module>
 
 run_migrations_online()
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/superset/migrations/[env.py](env.py)", line 93, in run_migrations_online
 
 context.run_migrations()
 
 File "<string>", line 8, in run_migrations
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/runtime/[environment.py](environment.py)", line 839, in run_migrations
 
 self.get_context().run_migrations(**kw)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/alembic/runtime/[migration.py](migration.py)", line 361, in run_migrations
 
 step.migration_fn(**kw)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/superset/migrations/versions/[4451805bbaa1_remove_double_percents.py](4451805bbaa1_remove_double_percents.py)", line 82, in upgrade
 
 replace('%%', '%')
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/superset/migrations/versions/[4451805bbaa1_remove_double_percents.py](4451805bbaa1_remove_double_percents.py)", line 53, in replace
 
 .join(Table)
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/sqlalchemy/orm/[query.py](query.py)", line 2235, in join
 
 from_joinpoint=from_joinpoint,
 
 File "<string>", line 2, in _join
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/sqlalchemy/orm/[base.py](base.py)", line 220, in generate
 
 fn(self, *args[1:], **kw)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/sqlalchemy/orm/[query.py](query.py)", line 2414, in _join
 
 left, right, onclause, prop, create_aliases, outerjoin, full
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/sqlalchemy/orm/[query.py](query.py)", line 2437, in _join_left_to_right
 
 ) = self._join_determine_implicit_left_side(left, right, onclause)
 
 File "/home/jhadmin/.pyenv/versions/3.7.2/envs/myenv-3.7.2/lib/python3.7/site-packages/sqlalchemy/orm/[query.py](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.

问题原因

这是 SQLAlchemy 库版本太高导致的，需要安装低版本的 SQLAlchemy 库。

解决办法

# 查看当前 SQLAlchemy 版本
$ pip list | grep -i sqlalchemy
Flask-SQLAlchemy 2.3.2
SQLAlchemy       1.3.2
SQLAlchemy-Utils 0.33.11
 
# 安装低版本 SQLAlchemy
$ pip install SQLAlchemy==1.2.18