Gral: An Extensible Relational Database System for Geometric Applications
Summary: Extensible relational DB enabling user-defined data types, operators, and relation algebra. Queries and execution plans are expressed in many-sorted algebra, yielding a uniform architecture and simplified rule-based optimization; demonstrated via a geometric database extension. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Ralf Hartmut Güting (University of Dortmund)
BibTeX Citation
@article{guting_vldb89,
title = {{Gral: An Extensible Relational Database System for Geometric Applications}},
author = {Güting, Ralf Hartmut},
journal = {PVLDB},
series = {{VLDB} '89},
year = {1989}
}Incoming Citations (Sorted by Pagerank)
Showing 8 of 8 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,144 | Optimization Strategies for Spatial Query Processing | 1991 | VLDB | 0.00011837245 |
| 1,350 | GraphDB: Modeling and Querying Graphs in Databases | 1994 | VLDB | 0.00010939854 |
| 1,904 | The LSD tree: spatial access to multidimensional point and non-point objects | 1989 | VLDB | 9.3990319e-05 |
| 3,101 | The DEDALE System for Complex Spatial Queries | 1998 | SIGMOD | 7.647277e-05 |
| 3,669 | The LyriC Language: Querying Constraint Objects | 1995 | SIGMOD | 7.1129952e-05 |
| 9,331 | Second-Order Signature: A Tool for Specifying Data Models, Query Processing, and Optimization | 1993 | SIGMOD | 5.1918127e-05 |
| 13,309 | Flexible Relations - Operational Support of Variant Relational Structures | 1995 | VLDB | 4.9769913e-05 |
| 13,353 | What's Special about Spatial? Database Requirements for Vehicle Navigation in Geographic Space (Extended Abstract) | 1993 | SIGMOD | 4.9769913e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 8 of 8 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10 | Extending the Data Base Relational Model to Capture More Meaning | 1979 | SIGMOD | 0.00075910134 |
| 34 | The Design Of Postgres | 1986 | SIGMOD | 0.00049129967 |
| 118 | The EXODUS Optimizer Generator | 1987 | SIGMOD | 0.00031381726 |
| 183 | On Extending the Functions of a Relational Database System | 1982 | SIGMOD | 0.00026166613 |
| 196 | Grammar-like Functional Rules for Representing Query Optimization Alternatives | 1988 | SIGMOD | 0.00025616489 |
| 631 | A Rule-Based View of Query Optimization | 1987 | SIGMOD | 0.00015411265 |
| 698 | A Data Model and Query Language for EXODUS | 1988 | SIGMOD | 0.0001468044 |
| 1,411 | A Data Management Extension Architecture | 1987 | SIGMOD | 0.00010736094 |
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