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ICDE
2012
IEEE

Micro-Specialization in DBMSes

11 years 6 months ago
Micro-Specialization in DBMSes
Abstract—Relational database management systems are general in the sense that they can handle arbitrary schemas, queries, and modifications; this generality is implemented using runtime metadata lookups and tests that ensure that control is channelled to the appropriate code in all cases. Unfortunately, these lookups and tests are carried out even when information is available that renders some of these operations superfluous, leading to unnecessary runtime overheads. This paper introduces microspecialization, an approach that uses relation- and query-specific information to specialize the DBMS code at runtime and thereby eliminate some of these overheads. We develop a taxonomy of approaches and specialization times and propose a general architecture that isolates most of the creation and execution of the specialized code sequences in a separate DBMS-independent module. Through three illustrative types of micro-specializations applied to PostgreSQL, we show that this approach requ...
Rui Zhang, Richard T. Snodgrass, Saumya Debray
Added 28 Sep 2012
Updated 28 Sep 2012
Type Journal
Year 2012
Where ICDE
Authors Rui Zhang, Richard T. Snodgrass, Saumya Debray
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