DBMS > AgensGraph vs. PostgreSQL vs. Riak KV vs. STSdb
System Properties Comparison AgensGraph vs. PostgreSQL vs. Riak KV vs. STSdb
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|Editorial information provided by DB-Engines|
|Name||AgensGraph Xexclude from comparison||PostgreSQL Xexclude from comparison||Riak KV Xexclude from comparison||STSdb Xexclude from comparison|
|Description||Multi-model database supporting relational and graph data models and built upon PostgreSQL||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Distributed, fault tolerant key-value store||Key-Value Store with special method for indexing optimized for high performance using a special indexing method|
|Primary database model||Graph DBMS|
|Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Key-value store with links between data sets and object tags for the creation of secondary indexes||Key-value store|
|Secondary database models||Document store|
|Developer||Bitnine Global Inc.||PostgreSQL Global Development Group www.postgresql.org/developer||Basho Technologies||STS Soft SC|
|Initial release||2016||1989 1989: Postgres, 1996: PostgreSQL||2009||2011|
|Current release||2.1, December 2018||12.1, November 2019||2.1.0, April 2015|
|License Commercial or Open Source||Open Source Apache License 2.0||Open Source BSD||Open Source Apache version 2, commercial enterprise edition||Open Source GPLv2, commercial license available|
|Cloud-based only Only available as a cloud service||no||no||no||no|
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|Server operating systems||Linux|
|Data scheme||depending on used data model||yes||schema-free||yes|
|Typing predefined data types such as float or date||yes||yes||no||yes primitive types and user defined types (classes)|
|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.||no||yes specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||yes||yes standard with numerous extensions||no||no|
|APIs and other access methods||Cypher Query Language|
native C library
streaming API for large objects
Native Erlang Interface
|.NET Client API|
|Supported programming languages||C|
|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||no||yes||yes pre-commit hooks and post-commit hooks||no|
|Partitioning methods Methods for storing different data on different nodes||no, but can be realized using table inheritance||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding no "single point of failure"||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Master-slave replication||Master-slave replication other methods possible by using 3rd party extensions||selectable replication factor||none|
|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||Immediate Consistency||Eventual Consistency|
|Foreign keys Referential integrity||yes||yes||no links between data sets can be stored||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||no||no|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard||no||no|
More information provided by the system vendor
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|Conferences and events|
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