967a44dd16d5_add_server_default_to_resource_values_values.py 文件源码

def upgrade():
    table_prefix = context.config.get_main_option('table_prefix')
    table_name = table_prefix + 'resource_values'
    with op.batch_alter_table(table_name) as batch:
        batch.alter_column(
            'values',
            server_default='{}',
            existing_type=tuning_box.db.Json(),
        )