Ordbase

Ordbase is a term used to describe a database platform designed to manage ordinal data and ordered sequences. In typical implementations, ordbase stores records keyed by ordinal indices and supports efficient range and prefix operations over those keys. The design goal is to provide stable, monotonic indexing for applications that rely on ordered data, such as time-series, versioned documents, or lexicographic catalogs.

Data model and operations: A record in ordbase consists of an ordinal key, a payload field, and optional metadata. Keys can be simple integers or composite ordinals encoding hierarchical positions. The system offers range queries on ordinal keys, prefix scans, and versioned views through snapshot isolation. It provides an SQL-like query interface (or a specialized ordinal query language) for filtering, sorting, and projecting by ordinal ranges. It emphasizes ACID transactions and configurable consistency levels.

Architecture and storage: ordbase can be deployed as a server with a pluggable storage engine and multiple backends. It supports clustering, replication, and snapshotting for high availability. Storage engines may use B-trees for small, random access patterns or log-structured merge trees (LSM trees) for high-throughput workloads. Indexing is optimized for monotonic insertions and ordered scans.

Applications and limitations: Useful in event logging, time-series analysis, and ordered data catalogs; less suitable for highly random access patterns with non-ordinal keys. The project is described as community-driven, with an emphasis on clear data models and interoperability.

See also: time-series database, key-value store, B-tree, LSM-tree, lexicographic ordering.