Introduction to the special issue on self‑managing and hardware‑optimized database systems 2022.

Particularly, the relational database management systems and the big data systems (e.g., Key-Value stores, Document stores, Graph stores and Graph Computation Systems, Spark, MapReduce/Hadoop, or Data Stream Processing Systems) have evolved with novel additions and extensions. The paper by Harish Kumar Harihara Subramanian et al. on supporting DBMS GPU-based operations with out-of-the-box libraries describes the ongoing research in the database community regarding the use of GPUs for query processing. Data management systems have evolved in terms of functionality, performance characteristics, complexity, and variety during the last 40 years. [Extracted from the article]