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DBMS > etcd vs. openGemini vs. PostGIS

System Properties Comparison etcd vs. openGemini vs. PostGIS

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Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonopenGemini  Xexclude from comparisonPostGIS  Xexclude from comparison
DescriptionA distributed reliable key-value storeAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilitySpatial extension of PostgreSQL
Primary database modelKey-value storeTime Series DBMSSpatial DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.25
Rank#54  Overall
#5  Key-value stores
Score0.01
Rank#375  Overall
#39  Time Series DBMS
Score22.69
Rank#29  Overall
#1  Spatial DBMS
Websiteetcd.io
github.com/­etcd-io/­etcd
www.opengemini.org
github.com/­openGemini
postgis.net
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
docs.opengemini.org/­guidepostgis.net/­documentation
DeveloperHuawei and openGemini community
Initial release20222005
Current release3.4, August 20191.1, July 20233.4.2, February 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache Version 2.0Open Source infoGPL v2.0
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.
Implementation languageGoGoC
Server operating systemsFreeBSD
Linux
Windows infoexperimental
Linux
Windows
Data schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenoInteger, Float, Boolean, Stringyes
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 indexesnoyesyes
SQL infoSupport of SQLnoSQL-like query languageyes
APIs and other access methodsgRPC
JSON over HTTP
HTTP REST
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
Server-side scripts infoStored proceduresnonouser defined functions
Triggersyes, watching key changesnoyes
Partitioning methods infoMethods for storing different data on different nodesShardingyes infobased on PostgreSQL
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.yesyes infobased on PostgreSQL
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
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.noyesno
User concepts infoAccess controlnoAdministrators and common users accountsyes infobased on PostgreSQL

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More resources
etcdopenGeminiPostGIS
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