DBMS > HEAVY.AI vs. Prometheus vs. VoltDB
System Properties Comparison HEAVY.AI vs. Prometheus vs. VoltDB
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|Editorial information provided by DB-Engines|
|Name||HEAVY.AI Formerly named 'OmniSci', rebranded to 'HEAVY.AI' in March 2022 Xexclude from comparison||Prometheus Xexclude from comparison||VoltDB Xexclude from comparison|
|Description||A high performance, column-oriented RDBMS, specifically developed to harness the massive parallelism of modern CPU and GPU hardware||Open-source TimeSeries DBMS and monitoring system||Distributed In-Memory NewSQL RDBMS Used for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory|
|Primary database model||Relational DBMS||Time Series DBMS||Relational DBMS|
|Secondary database models||Spatial DBMS|
|Developer||HEAVY.AI, Inc.||VoltDB Inc.|
|Current release||5.10, January 2022||11.3, April 2022|
|License Commercial or Open Source||Open Source Apache Version 2; enterprise edition available||Open Source Apache 2.0||Open Source AGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Implementation language||C++ and CUDA||Go||Java, C++|
|Server operating systems||Linux||Linux|
OS X for development
|Typing predefined data types such as float or date||yes||Numeric data only||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||no Import of XML data possible|
|SQL Support of SQL||yes||no||yes only a subset of SQL 99|
|APIs and other access methods||JDBC|
|RESTful HTTP/JSON API||Java API|
RESTful HTTP/JSON API
|Supported programming languages||All languages supporting JDBC/ODBC/Thrift|
Erlang not officially supported
|Server-side scripts Stored procedures||no||no||Java|
|Partitioning methods Methods for storing different data on different nodes||Sharding Round robin||Sharding||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication||yes by Federation||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||none|
|Foreign keys Referential integrity||no||no||no FOREIGN KEY constraints are not supported|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no||ACID Transactions are executed single-threaded within stored procedures|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes Data access is serialized by the server|
|Durability Support for making data persistent||yes||yes||yes Snapshots and command logging|
|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||fine grained access rights according to SQL-standard||no||Users and roles with access to stored procedures|
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|HEAVY.AI Formerly named 'OmniSci', rebranded to 'HEAVY.AI' in March 2022||Prometheus||VoltDB|
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