Sandbox::https://github.com/googleapis/python-spanner-sqlalchemy/blob/main/migration_test

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# -*- coding: utf-8 -*-

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

# https://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

import re

import sys

from google.cloud import spanner

def main(argv):

db_url = argv[0]

project = re.findall(r"projects(.*?)instances", db_url)

instance_id = re.findall(r"instances(.*?)databases", db_url)

database_id = re.findall(r"databases(.*?)$", db_url)

client = spanner.Client(project="".join(project).replace("/", ""))

instance = client.instance(instance_id="".join(instance_id).replace("/", ""))

database = instance.database("".join(database_id).replace("/", ""))

database.update_ddl(["DROP TABLE IF EXISTS account", "DROP TABLE IF EXISTS alembic_version"]).result(120)

if __name__ == "__main__":

main(sys.argv[1:])