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Joined 2026-09-21 Message
Incoming links: PostgreSQL
PostgreSQL 2026-11-05
PostgreSQL is an open-source object-relational database management system supporting SQL, database transactions, constraints and extensible data types. It manages stored relations and concurrent access through a server, rather than merely defining a database query language. The project descends from the Berkeley POSTGRES system.[ref]
What Is PostgreSQL? in the PostgreSQL documentation. Preface §1, origins and supported features
For example,
SELECT name FROM samples WHERE reading > 5 requests selected rows without prescribing their physical access path. A database index can accelerate retrieval, while database transactions govern the visibility and consistency of related updates. A database relation has no implicit presentation order: a caller needing sorted rows must request an ordering.[ref]Concepts in the PostgreSQL documentation. §2.2, relations, columns and unspecified row order
These distinctions separate logical results from storage organization and display. PostgreSQL Global Development Group 2026-11-05
The PostgreSQL Global Development Group is the collective project attribution used for the development and documentation of PostgreSQL, an open-source database management system. Its documentation specifies concrete behavior for database transactions, database integrity constraints, database query operations and storage mechanisms; these specifications are more precise than inferring behavior from SQL syntax alone.[ref]
For example, PostgreSQL documents transaction isolation levels in terms of visible snapshots and permitted anomalies. The project name here identifies the responsible development community, rather than one individual author or a separate database product.