S3 Select

S3 Select is a feature of Amazon S3 (Simple Storage Service) that allows users to retrieve only specific data from large objects in storage, like CSV or JSON files. Instead of downloading an entire file, you can query it to get just the information you need. This makes data processing faster and more efficient, saving both time and costs associated with data transfer. Essentially, S3 Select helps you work with big data more effectively by letting you focus on relevant portions without the overhead of handling the entire dataset.