Indexing a transaction-decision time database
Mário A. Nascimento, Margaret H. Dunham · 1996
Although most of the research found in the temporal database literature recognizes the need to support valid time and transaction time as temporal attributes, only a few papers have recognized the role of decision (or event) time.Moreover, no indexing technique which encompasses decision time has been presented in the literature.We aim to fill this void by presenting an indexing structure that is able to index both transaction time and decision time under the same framework.This structure is based on a B+-tree.An extension to the proposed structure is presented to more efficiently handle the case where non-temporal data is also used in queries.*On leave of absence from EMBRAPA -CNPTIA, Campinas, Brazil (mario@cnptia.