Efficient execution of joins in a star schema

  • Authors:
  • Andreas Weininger

  • Affiliations:
  • IBM Data Management Solutions, Ismaning, Germany

  • Venue:
  • Proceedings of the 2002 ACM SIGMOD international conference on Management of data
  • Year:
  • 2002

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Abstract

A star schema is very popular for modeling data warehouses and data marts. Therefore, it is important that a database system which is used for implementing such a data warehouse or data mart is able to efficiently handle operations on such a schema. In this paper we will describe how one of these operations, the join operation --- probably the most important operation --- is implemented in the IBM Informix Extended Parallel Server (XPS).