SAP SE
Global Dictionary for Database Management Systems

Abstract:

A global dictionary is described that corresponds to a database or table stored across multiple partitions. The global dictionary can be used to identify which partitions of the database contain records that are relevant to a user's query on the database. The global dictionary is made up of variable tables. Each variable table corresponds to a column of the database. A given variable table includes value tables where each value table corresponds to a defined value that has been assigned to a record in the database. A value table can include a list of partitions that contain a record having the related defined value.