DBMS > FatDB vs. PostgreSQL vs. Riak TS
System Properties Comparison FatDB vs. PostgreSQL vs. Riak TS
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|Editorial information provided by DB-Engines|
|Name||FatDB Xexclude from comparison||PostgreSQL Xexclude from comparison||Riak TS Xexclude from comparison|
|FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.|
|Description||A .NET NoSQL DBMS that can integrate with and extend SQL Server.||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Riak TS is a distributed NoSQL database optimized for time series data and based on Riak KV|
|Primary database model||Document store|
|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|
|Secondary database models||Document store|
|Developer||FatCloud||PostgreSQL Global Development Group www.postgresql.org/developer||Basho Technologies|
|Initial release||2012||1989 1989: Postgres, 1996: PostgreSQL||2015|
|Current release||13.0, September 2020|
|License Commercial or Open Source||commercial||Open Source BSD||Open Source|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||Windows||FreeBSD|
|Typing predefined data types such as float or date||yes||yes||no|
|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|
|SQL Support of SQL||no Via inetgration in SQL Server||yes standard with numerous extensions||no|
|APIs and other access methods||.NET Client API|
RESTful HTTP API
Windows WCF Bindings
native C library
streaming API for large objects
Native Erlang Interface
|Supported programming languages||C#||.Net|
|C unofficial client library|
C++ unofficial client library
Clojure unofficial client library
Dart unofficial client library
Go unofficial client library
Groovy unofficial client library
Haskell unofficial client library
Lisp unofficial client library
Perl unofficial client library
Scala unofficial client library
Smalltalk unofficial client library
|Triggers||yes via applications||yes||yes pre-commit hooks and post-commit hooks|
|Partitioning methods Methods for storing different data on different nodes||Sharding||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||selectable replication factor||Source-replica replication other methods possible by using 3rd party extensions||selectable replication factor|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no||yes|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
|Immediate Consistency||Eventual Consistency|
|Foreign keys Referential integrity||no||yes||no links between datasets can be stored|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID||no|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||no Can implement custom security layer via applications||fine grained access rights according to SQL-standard||no|
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