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PostgreSQL supports a binary communication protocol that allows applications to connect to the database server. The protocol is versioned (currently 3.0, as of PostgreSQL 7.4) and has a detailed specification. [47] The official client implementation of this communication protocol is a C API, libpq. [48]
This makes them efficient, but limits them to particular vendors. So far PostgreSQL is the only vendor to have announced a live product with this specific feature, in PostgreSQL 9.5. [ 3 ] [ 4 ] Other vendors have described some similar features, [ 2 ] including Oracle , [ 5 ] [ 6 ] Netezza 'zone maps', [ 7 ] Infobright 'data packs', [ 8 ...
When connection pool configurations exceed these limits, issues such as rejected connections, throttling, or degraded performance can occur. Depending on how database limits are applied, overprovisioned connection pools can create significant resource contention as the server struggles to manage excessive simultaneous connections.
4.1 2020-08 Proprietary: No Omnis Studio: TigerLogic Inc 1982-07 6.1.3 Release 1no 2015-12 Proprietary: No OpenEdge: Progress Software Corporation: 1984 12.8 2024-1 Proprietary: No OpenLink Virtuoso: OpenLink Software 1998 7.2.5.1 2018-08-15 GPL v2 or Proprietary: Yes [30] Oracle DB: Oracle Corporation: 1979-11 23ai [31] 2023-09-19; 17 months ...
It added PostgreSQL compatibility in October 2017. [3] In August 2017, Aurora Fast Cloning (copy-on-write) feature was added allowing customers to create copies of their databases. [4] In May 2018, Aurora Backtrack was added which allows developers to rewind database clusters without creating a new one. [5]
CockroachDB is a source-available distributed SQL database management system developed by Cockroach Labs. [2] [3]The relational functionality is built on top of a distributed, transactional, consistent key-value store that can survive a variety of different underlying infrastructure failures, and is wire-compatible with PostgreSQL which means users can take advantage of a wide range of drivers ...
PL/pgSQL (Procedural Language/PostgreSQL) is a procedural programming language supported by the PostgreSQL ORDBMS. It closely resembles Oracle 's PL/SQL language. Implemented by Jan Wieck, PL/pgSQL first appeared with PostgreSQL 6.4, released on October 30, 1998. [ 1 ]
[4] Materialized views that store data based on remote tables were also known as snapshots [5] (deprecated Oracle terminology). In any database management system following the relational model, a view is a virtual table representing the result of a database query. Whenever a query or an update addresses an ordinary view's virtual table, the ...