烧瓶中的多模式迁移

Question

我有一个 Flask 应用程序，并试图在单个数据库中使用多个模式使其成为多租户应用程序。

当需要对数据库进行更改时，例如添加列、添加表和其他更改。我需要通过每个迁移到模式。我改变了我的 migrations/env.py 如下

def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = engine_from_config(
            config.get_section(config.config_ini_section),
            prefix='sqlalchemy.',
            poolclass=pool.NullPool)

# schemas = set([prototype_schema,None])

connection = engine.connect()
context.configure(
    connection=connection,
    target_metadata=target_metadata,
    include_schemas=True, #schemas,
    # include_object=include_schemas([None,prototype_schema])
    include_object=include_schemas([None])

)

try:
    domains = ['public', 'test', 'some_schema_name']
    for domain in domains:
        connection.execute('set search_path to "{}", public'.format(domain))
        with context.begin_transaction():
            context.run_migrations()

finally:
    connection.close()

迁移仅影响数组中的第一个架构。此处仅迁移 public。我需要跨所有架构迁移。