Amazon Redshift Spectrum

Amazon Redshift Spectrum is a service that allows you to query data stored in Amazon S3 (cloud storage) directly from your Redshift data warehouse. It enables analyzing vast amounts of data across different storage formats without moving or transforming the data first. By combining your existing Redshift data with external data stored in S3, Spectrum provides scalable, flexible, and cost-effective data analysis. Essentially, it extends Redshift's capabilities, making it easier to work with large datasets spread across multiple sources, supporting more comprehensive and efficient data insights.