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DBMS > Coveo vs. Dolt vs. Memcached vs. SpaceTime

System Properties Comparison Coveo vs. Dolt vs. Memcached vs. SpaceTime

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Editorial information provided by DB-Engines
NameCoveo  Xexclude from comparisonDolt  Xexclude from comparisonMemcached  Xexclude from comparisonSpaceTime  Xexclude from comparison
DescriptionAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentA MySQL compatible DBMS with Git-like versioning of data and schemaIn-memory key-value store, originally intended for cachingSpaceTime is a spatio-temporal DBMS with a focus on performance.
Primary database modelSearch engineRelational DBMSKey-value storeSpatial DBMS
Secondary database modelsDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.14
Rank#116  Overall
#11  Search engines
Score0.93
Rank#194  Overall
#90  Relational DBMS
Score16.84
Rank#32  Overall
#4  Key-value stores
Score0.00
Rank#385  Overall
#7  Spatial DBMS
Websitewww.coveo.comgithub.com/­dolthub/­dolt
www.dolthub.com
www.memcached.orgwww.mireo.com/­spacetime
Technical documentationdocs.coveo.comdocs.dolthub.comgithub.com/­memcached/­memcached/­wiki
DeveloperCoveoDoltHub IncDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalMireo
Initial release2012201820032020
Current release1.6.29, June 2024
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0Open Source infoBSD licensecommercial
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoCC++
Server operating systemshostedLinux
macOS
Windows
FreeBSD
Linux
OS X
Unix
Windows
Linux
Data schemehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationyesschema-freeyes
Typing infopredefined data types such as float or dateyesyesnoyes
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 indexesyesyesnono
SQL infoSupport of SQLnoyesnoA subset of ANSI SQL is implemented
APIs and other access methodsRESTful HTTP APICLI Client
HTTP REST
Proprietary protocolRESTful HTTP API
Supported programming languagesC#
Java
JavaScript
Python
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C#
C++
Python
Server-side scripts infoStored proceduresnoyes infocurrently in alpha releasenono
Triggersyesyesnono
Partitioning methods infoMethods for storing different data on different nodesyesnonenoneFixed-grid hypercubes
Replication methods infoMethods for redundantly storing data on multiple nodesyesA database can be cloned to multiple locations and be used there in isolation. Data/schema changes can be pushed/pulled explicitly between locations.none infoRepcached, a Memcached patch, provides this functionallityReal-time block device replication (DRBD)
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDnono
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlgranular access controls, API key management, content filtersOnly one user is configurable, and must be specified in the config file at startupyes infousing SASL (Simple Authentication and Security Layer) protocolyes

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CoveoDoltMemcachedSpaceTime
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