# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you 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 # # http://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. from alembic import op from sqlalchemy import engine_from_config from sqlalchemy.engine import reflection from sqlalchemy.exc import NoSuchTableError def table_has_column(table: str, column: str) -> bool: """ Checks if a column exists in a given table. :param table: A table name :param column: A column name :returns: True iff the column exists in the table """ config = op.get_context().config engine = engine_from_config( config.get_section(config.config_ini_section), prefix="sqlalchemy." ) insp = reflection.Inspector.from_engine(engine) try: return any(col["name"] == column for col in insp.get_columns(table)) except NoSuchTableError: return False