DBMS > BigObject vs. Citus
System Properties Comparison BigObject vs. Citus
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|Editorial information provided by DB-Engines|
|Name||BigObject Xexclude from comparison||Citus Xexclude from comparison|
|Description||Analytic DBMS for real-time computations and queries||Scalable hybrid operational and analytics RDBMS for big data use cases based on PostgreSQL|
|Primary database model||Relational DBMS a hierachical model (tree) can be imposed||Relational DBMS|
|Secondary database models||Document store|
|Current release||8.1, December 2018|
|License Commercial or Open Source||commercial free community edition available||Open Source AGPL, commercial license also available|
|Cloud-based only Only available as a cloud service||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux distributed as a docker-image|
OS X distributed as a docker-image (boot2docker)
Windows distributed as a docker-image (boot2docker)
|Typing predefined data types such as float or date||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|
|SQL Support of SQL||SQL-like DML and DDL statements||yes standard, with numerous extensions|
|APIs and other access methods||fluentd|
RESTful HTTP API
native C library
streaming API for large objects
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||Lua||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.|
|Partitioning methods Methods for storing different data on different nodes||none||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||none||Source-replica replication other methods possible by using 3rd party extensions|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency|
|Foreign keys Referential integrity||yes automatically between fact table and dimension tables||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes Read/write lock on objects (tables, trees)||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||no||fine grained access rights according to SQL-standard|
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