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DBMS > Cachelot.io vs. Newts vs. OpenMLDB vs. PostGIS vs. Quasardb

System Properties Comparison Cachelot.io vs. Newts vs. OpenMLDB vs. PostGIS vs. Quasardb

Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonNewts  Xexclude from comparisonOpenMLDB  Xexclude from comparisonPostGIS  Xexclude from comparisonQuasardb  Xexclude from comparison
DescriptionIn-memory caching systemTime Series DBMS based on CassandraAn open-source machine learning database that provides a feature platform for training and inferenceSpatial extension of PostgreSQLDistributed, high-performance timeseries database
Primary database modelKey-value storeTime Series DBMSTime Series DBMSSpatial DBMSTime Series DBMS
Secondary database modelsRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#60  Key-value stores
Score0.00
Rank#383  Overall
#41  Time Series DBMS
Score0.02
Rank#367  Overall
#37  Time Series DBMS
Score22.69
Rank#29  Overall
#1  Spatial DBMS
Score0.14
Rank#332  Overall
#29  Time Series DBMS
Websitecachelot.ioopennms.github.io/­newtsopenmldb.aipostgis.netquasar.ai
Technical documentationgithub.com/­OpenNMS/­newts/­wikiopenmldb.ai/­docs/­zh/­mainpostgis.net/­documentationdoc.quasar.ai/­master
DeveloperOpenNMS Group4 Paradigm Inc.quasardb
Initial release20152014202020052009
Current release2024-2 February 20243.4.2, February 20243.14.1, January 2024
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicenseOpen Source infoApache 2.0Open SourceOpen Source infoGPL v2.0commercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licenses
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++JavaC++, Java, ScalaCC++
Server operating systemsFreeBSD
Linux
OS X
Linux
OS X
Windows
LinuxBSD
Linux
OS X
Windows
Data schemeschema-freeschema-freeFixed schemayesschema-free
Typing infopredefined data types such as float or datenoyesyesyesyes infointeger and binary
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.nononoyesno
Secondary indexesnonoyesyesyes infowith tags
SQL infoSupport of SQLnonoyesyesSQL-like query language
APIs and other access methodsMemcached protocolHTTP REST
Java API
JDBC
SQLAlchemy
HTTP API
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
JavaC++
Go
Java
Python
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Server-side scripts infoStored proceduresnononouser defined functionsno
Triggersnononoyesno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on Cassandrahorizontal partitioningyes infobased on PostgreSQLSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on CassandraSource-replica replicationyes infobased on PostgreSQLSource-replica replication with selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentnoyesyesyesyes infoby using LevelDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesnoyes infoTransient mode
User concepts infoAccess controlnonofine grained access rights according to SQL-standardyes infobased on PostgreSQLCryptographically strong user authentication and audit trail

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More resources
Cachelot.ioNewtsOpenMLDBPostGISQuasardb
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