DBMS > JanusGraph vs. PostgreSQL vs. TimesTen
System Properties Comparison JanusGraph vs. PostgreSQL vs. TimesTen
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|Editorial information provided by DB-Engines|
|Name||JanusGraph successor of Titan Xexclude from comparison||PostgreSQL Xexclude from comparison||TimesTen Xexclude from comparison|
|Description||A Graph DBMS optimized for distributed clusters It was forked from the latest code base of Titan in January 2017||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||In-Memory RDBMS compatible to Oracle|
|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.||Relational DBMS|
|Secondary database models||Document store|
|Developer||Linux Foundation; originally developed as Titan by Aurelius||PostgreSQL Global Development Group www.postgresql.org/developer||Oracle, TimesTen Performance Software, HP originally founded in HP Labs it was acquired by Oracle in 2005|
|Initial release||2017||1989 1989: Postgres, 1996: PostgreSQL||1998|
|Current release||0.5.2, May 2020||13.2 , February 2021||11 Release 2 (18.104.22.168.0)|
|License Commercial or Open Source||Open Source Apache 2.0||Open Source BSD||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||Linux|
|Typing predefined data types such as float or date||yes||yes||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.||no||yes specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||no||yes standard with numerous extensions||yes|
|APIs and other access methods||Java API|
native C library
streaming API for large objects
Oracle Call Interface (OCI)
|Supported programming languages||Clojure|
|Server-side scripts Stored procedures||yes||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||PL/SQL|
|Partitioning methods Methods for storing different data on different nodes||yes depending on the used storage backend (e.g. Cassandra, HBase, BerkeleyDB)||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||Source-replica replication other methods possible by using 3rd party extensions||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes via Faunus, a graph analytics engine||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
|Immediate Consistency||Immediate Consistency or Eventual Consistency depending on configuration|
|Foreign keys Referential integrity||yes Relationships in graphs||yes||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes Supports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcast||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||yes|
|User concepts Access control||User authentification and security via Rexster Graph Server||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
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|3rd parties||CYBERTEC is your professional partner for PostgreSQL services and Data Science since 2000. With offices in Austria, Uruguay, Estonia, Poland, South Africa and Switzerland, CYBERTEC operates worldwide and is here for you 24/7! |
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|JanusGraph successor of Titan||PostgreSQL||TimesTen|
|DB-Engines blog posts|
PostgreSQL is the DBMS of the Year 2020
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