What is Redshift?
Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud provided by Amazon Web Services (AWS). Redshift allows you to run complex analytic queries against large datasets using SQL, Python, or other scripting languages. It is designed for high performance and scalability, making it suitable for handling large volumes of structured and semi-structured data.
How does Redshift work?
Amazon Redshift works by distributing data across multiple nodes, which are further divided into slices. Each slice processes a portion of the data in parallel, allowing for fast query execution. Redshift uses a columnar storage format, which optimizes data compression and read performance for analytic queries. It also employs advanced query optimization techniques, such as query rewriting, predicate pushdown, and result caching, to improve query performance.