DBMS > PostgreSQL vs. Prometheus vs. RavenDB vs. TimesTen
System Properties Comparison PostgreSQL vs. Prometheus vs. RavenDB vs. TimesTen
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||Prometheus Xexclude from comparison||RavenDB Xexclude from comparison||TimesTen Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Open-source TimeSeries DBMS and monitoring system||Open Source Operational and Transactional Enterprise NoSQL Document Database||In-Memory RDBMS compatible to Oracle|
|Primary database model||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Time Series DBMS||Document store||Relational DBMS|
|Secondary database models||Document store|
Time Series DBMS
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||Hibernating Rhinos||Oracle, TimesTen Performance Software, HP originally founded in HP Labs it was acquired by Oracle in 2005|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2015||2010||1998|
|Current release||15.1, November 2022||5.4, July 2022||11 Release 2 (220.127.116.11.0)|
|License Commercial or Open Source||Open Source BSD||Open Source Apache 2.0||Open Source AGPL version 3, commercial license available||commercial|
|Cloud-based only Only available as a cloud service||no||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||yes||Numeric data only||no||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||yes specific XML-type available, but no XML query functionality.||no Import of XML data possible||no|
|SQL Support of SQL||yes standard with numerous extensions||no||SQL-like query language (RQL)||yes|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|RESTful HTTP/JSON API||.NET Client API|
F# Client API
Go Client API
Java Client API
NodeJS Client API
PHP Client API
Python Client API
RESTful HTTP API
Oracle Call Interface (OCI)
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no||yes||PL/SQL|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding||Sharding||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||yes by Federation||Multi-source replication||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||none||Default ACID transactions on the local node (eventually consistent across the cluster). Atomic operations with cluster-wide ACID transactions. Eventual consistency for indexes and full-text search indexes.||Immediate Consistency or Eventual Consistency depending on configuration|
|Foreign keys Referential integrity||yes||no||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID, Cluster-wide transaction available||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes||yes by means of logfiles and checkpoints|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no||Authorization levels configured per client per database||fine grained access rights according to SQL-standard|
|More information provided by the system vendor|
|Specific characteristics||RavenDB is the pioneer NoSQL Document Database that is fully transactional (ACID)...|
|Competitive advantages||RavenDB is easy to setup and secure. You can do it in a matter of minutes . Easy...|
|Typical application scenarios||IoT for Edge Deployments Fraud Detection Recommendation Engines Product Catalogs...|
|Key customers||Toyota, Capgemini, Vodafone, Medicaid, Asos, Nomura, RMS Automotive, MSNBC, Pluralsight,...|
|Market metrics||2 million+ downloads 1000+ customers including Fortune 500 large enterprises|
|Licensing and pricing models||RavenDB is available on-premise and in the cloud. RavenDB Cloud is available on AWS...|
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services|
|3rd parties||EDB: BigAnimal is fully-managed PostgreSQL in the cloud from the database fanatics at EDB.|
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Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
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