DBMS > Citus vs. HyperSQL vs. Hypertable
System Properties Comparison Citus vs. HyperSQL vs. Hypertable
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|Editorial information provided by DB-Engines|
|Name||Citus Xexclude from comparison||HyperSQL also known as HSQLDB Xexclude from comparison||Hypertable Xexclude from comparison|
|Hypertable has stopped its further development with March 2016 and is removed from the DB-Engines ranking.|
|Description||Scalable hybrid operational and analytics RDBMS for big data use cases based on PostgreSQL||Multithreaded, transactional RDBMS written in Java also known as HSQLDB||An open source BigTable implementation based on distributed file systems such as Hadoop|
|Primary database model||Relational DBMS||Relational DBMS||Wide column store|
|Secondary database models||Document store|
|Current release||8.1, December 2018||2.7.2, June 2023||0.9.8.11, March 2016|
|License Commercial or Open Source||Open Source AGPL, commercial license also available||Open Source based on BSD license||Open Source GNU version 3. Commercial license available|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||Linux||All OS with a Java VM Embedded (into Java applications) and Client-Server operating modes||Linux|
Windows an inofficial Windows port is available
|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|
|Secondary indexes||yes||yes||restricted only exact value or prefix value scans|
|SQL Support of SQL||yes standard, with numerous extensions||yes||no|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|HTTP API JDBC via HTTP|
|Supported programming languages||.Net|
|All languages supporting JDBC/ODBC|
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||Java, SQL||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||none||selectable replication factor on file system level|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||yes|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||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||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard||no|
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|Citus||HyperSQL also known as HSQLDB||Hypertable|
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