Simple way to query Amazon Athena in python with boto3
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgi-wBvKQcr8XMbDNSYBxkeMdeNI9l9gsPcOGOftOI98yF1rzVqzAjntdD-qtOFSgK979tbTuQ2uD_OIw9aJsQeKqmLMRJeHdhtBQo729XaGlS4Mz-edrYrJJ42tAq6vsqGerJRI5jW8xE/s320/athena-logo.png)
ETL takes time and it's a lot to maintain. Sometimes it breaks when you didn't expect a string to contain emojis. You might decide the transformation needs to be changed, which means you need to refresh all your data. So what can you do to avoid this?