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Database management systems (DBMS) are complex software systems which are used in an increasing number of applications. To obtain the best performance for business relevant applications, e.g., decision support systems (DSS). DBMS have to be tuned and monitored. In order to reduce the costs researchers and DBMS vendors have focused on self-management techniques for recent years. In particular, materialized...
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentation algorithm, which learns and adapts to the workload immediately. The approach taken is to capitalize on (intermediate) query results, such that future queries benefit from a more appropriate data layout. The algorithm...
Physical design has always been an important part of database administration. Today's commercial database management systems offer physical design tools, which recommend a physical design for a given workload. However, these tools work only with static workloads and ignore the fact that workloads, and physical designs, may change over time. Research has now begun to focus on dynamic physical design,...
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