Too Long; Didn't Read
Data warehouses have been around forever on-premises, but their appearance in the cloud is still relatively recent. Amazon Redshift in 2013 was the first cloud data warehouse that seemed to be headed towards becoming mainstream. Decoupled storage and compute enables users to quickly change the type and size of compute (clusters of CPUs) that is assigned to be the processing unit over the storage layer (hard drives, SSDs, etc). The cloud made this approach easily accessible to software, but it took time for software products to leverage this architectural concept.