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DBMS > Druid vs. MemSQL vs. OpenQM

System Properties Comparison Druid vs. MemSQL vs. OpenQM

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Editorial information provided by DB-Engines
NameDruid  Xexclude from comparisonMemSQL  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionOpen-source analytics data store designed for OLAP queries on timeseries dataMySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storageQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelRelational DBMS
Time Series DBMS
Relational DBMSMultivalue DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.17
Rank#118  Overall
#59  Relational DBMS
#7  Time Series DBMS
Score5.50
Rank#64  Overall
#35  Relational DBMS
Score0.31
Rank#253  Overall
#10  Multivalue DBMS
Websitedruid.apache.orgwww.memsql.comwww.openqm.com
Technical documentationdruid.apache.org/­docs/­latest/­designdocs.memsql.comwww.openqm.com/­support/­documentation
DeveloperMetamarkets Group and contributorsMemSQL Inc.Martin Phillips
Initial release201220131993
Current release7.1.4, July 20203.4-12
License infoCommercial or Open SourceOpen Source infoApache license v2commercial infofree developer edition availableOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
MemSQL Helios: The world's fastest, most capable cloud database for operational analytics, machine learning, & AI. Available instantly with multi-cloud and hybrid-cloud capabilities.
Implementation languageJavaC++
Server operating systemsLinux
OS X
Unix
Linux info64 bit version requiredAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemeyes infoschema-less columns are supportedyesyes infowith some exceptions
Typing infopredefined data types such as float or dateyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonoyes
Secondary indexesyesyesyes
SQL infoSupport of SQLSQL support via Apache Calcite adapteryes, but no triggers and foreign keysno
APIs and other access methodsJSON over HTTPJDBC
ODBC
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
Bash
C
C#
Java
JavaScript (Node.js)
Python
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnoyesyes
Triggersnonoyes
Partitioning methods infoMethods for storing different data on different nodesShardingShardingyes
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesSource-replica replicationyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency only within each nodeImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID infoOnly isolation level: READ COMMITEDACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlno infoavailable via extensionsfine grained access rights according to SQL-standardAccess rights can be defined down to the item level

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More resources
DruidMemSQLOpenQM infoalso called QM
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Recent citations in the news

Introducing Apache Druid
17 January 2020, insideBIGDATA

Druid Developer Expands Query Options
17 April 2020, Datanami

Druid Developer Ramps Cloud-Native Approach
10 December 2019, Datanami

Real-Time Analytics from Your Data Lake Teaching the Elephant to Dance
21 January 2020, insideBIGDATA

Imply launches with $2M to commercialize the Druid open-source data store
19 October 2015, VentureBeat

provided by Google News

MemSQL Expands Collaboration With Amazon Web Services, Joins ISV Workload Migration Program
15 July 2020, Yahoo Finance

MemSQL Expands Collaboration with AWS To Promote Move To Cloud-Based Operational Analytics
7 August 2020, Integration Developers

MemSQL Establishes Commitment to Latin American Market With LATBC Strategic Partnership
22 July 2020, Business Wire

MemSQL's growth mirrors need for real-time data analysis and rapid decision-making
4 August 2020, SiliconANGLE

Middle Eastern Technology Company Partners With BCT on Effort to Limit COVID-19 Spread Using MemSQL
29 July 2020, Business Wire

provided by Google News

OpenQM
5 March 2019, International Spectrum Magazine

provided by Google News

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