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DBMS > Amazon Redshift vs. KeyDB vs. OpenMLDB

System Properties Comparison Amazon Redshift vs. KeyDB vs. OpenMLDB

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Editorial information provided by DB-Engines
NameAmazon Redshift  Xexclude from comparisonKeyDB  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionLarge scale data warehouse service for use with business intelligence toolsAn ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocolsAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelRelational DBMSKey-value storeTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score14.21
Rank#38  Overall
#23  Relational DBMS
Score0.68
Rank#223  Overall
#31  Key-value stores
Score0.08
Rank#347  Overall
#33  Time Series DBMS
Websiteaws.amazon.com/­redshiftgithub.com/­Snapchat/­KeyDB
keydb.dev
openmldb.ai
Technical documentationdocs.aws.amazon.com/­redshiftdocs.keydb.devopenmldb.ai/­docs/­zh/­main
DeveloperAmazon (based on PostgreSQL)EQ Alpha Technology Ltd.4 Paradigm Inc.
Initial release201220192020
Current release2024-2 February 2024
License infoCommercial or Open SourcecommercialOpen Source infoBSD-3Open Source
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++C++, Java, Scala
Server operating systemshostedLinuxLinux
Data schemeyesschema-freeFixed schema
Typing infopredefined data types such as float or dateyespartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexesyes
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.nonono
Secondary indexesrestrictedyes infoby using the Redis Search moduleyes
SQL infoSupport of SQLyes infodoes not fully support an SQL-standardnoyes
APIs and other access methodsJDBC
ODBC
Proprietary protocol infoRESP - REdis Serialization ProtocoJDBC
SQLAlchemy
Supported programming languagesAll languages supporting JDBC/ODBCC
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic
C++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresuser defined functions infoin PythonLuano
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesShardingShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replication
Source-replica replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Strong eventual consistency with CRDTs
Immediate Consistency
Foreign keys infoReferential integrityyes infoinformational only, not enforced by the systemnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDOptimistic locking, atomic execution of commands blocks and scriptsno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardsimple password-based access control and ACLfine grained access rights according to SQL-standard

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More resources
Amazon RedshiftKeyDBOpenMLDB
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