The VLDB Journal

The VLDB Journal OnlineFirst articles

20-09-2021 | Regular Paper

Have query optimizers hit the wall?

The query optimization phase within a database management system (DBMS) ostensibly finds the fastest query execution plan from a potentially large set of enumerated plans, all of which correctly compute the specified query. Occasionally the …

15-09-2021 | Regular Paper

Complex event forecasting with prediction suffix trees

Complex event recognition (CER) systems have become popular in the past two decades due to their ability to “instantly” detect patterns on real-time streams of events. However, there is a lack of methods for forecasting when a pattern might occur …

08-09-2021 | Special Issue Paper

ABC of order dependencies

Band order dependencies (ODs) enhance constraint-based data quality by modeling the semantics of attributes that are monotonically related to small variations without an intrinsic violation of semantics. The class of approximate band conditional …

31-08-2021 | Regular Paper

Distance labeling: on parallelism, compression, and ordering

Distance labeling approaches are widely adopted to speed up the online performance of shortest-distance queries. The construction of the distance labeling, however, can be exhaustive, especially on big graphs. For a major category of large graphs …

29-08-2021 | Special Issue Paper

Data-induced predicates for sideways information passing in query optimizers

Using data statistics, we convert predicates on a table into data-induced predicates (diPs) that apply on the joining tables. Doing so substantially speeds up multi-relation queries because the benefits of predicate pushdown can now apply beyond …

Additional information

Title

The VLDB Journal

Publisher

Springer Berlin Heidelberg

Coverage

Volume 6/1997 - Volume 30/2021

Print ISSN

1066-8888

Electronic ISSN

0949-877X

DOI

https://doi.org/10.1007/778.0949-877X

Journal ID

778