\subsection{Cloud-Native Databases}
Many of the traditional database engines may run into overhead due to heavy I/O traffic, especially when mirroring.

As a result, many companies have improved implementations of SQL databases to make them suitable to cloud infrastructure.

Some of the improvements include caching. Micro-partitions in the Snowflake system is a system to facilitate query processing.
Each one of these partitions has sizes between 50 and 500 megabytes, and has metadata describing what is inside, which can also be read without reading the entire partition.

Furthermore, Amazon S3, the storage platform, does not support in-place updates, files are replaced in their entirety.
This means that old data can easily be recovered.
