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DBMS > Cachelot.io vs. Coveo vs. DuckDB vs. Realm vs. RisingWave

System Properties Comparison Cachelot.io vs. Coveo vs. DuckDB vs. Realm vs. RisingWave

Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonCoveo  Xexclude from comparisonDuckDB  Xexclude from comparisonRealm  Xexclude from comparisonRisingWave  Xexclude from comparison
DescriptionIn-memory caching systemAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentAn embeddable, in-process, column-oriented SQL OLAP RDBMSA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataA distributed RDBMS for stream processing, wire-compatible with PostgreSQL
Primary database modelKey-value storeSearch engineRelational DBMSDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.04
Rank#388  Overall
#62  Key-value stores
Score2.11
Rank#118  Overall
#11  Search engines
Score4.63
Rank#69  Overall
#37  Relational DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Score0.64
Rank#238  Overall
#110  Relational DBMS
Websitecachelot.iowww.coveo.comduckdb.orgrealm.iowww.risingwave.com/­database
Technical documentationdocs.coveo.comduckdb.org/­docsrealm.io/­docsdocs.risingwave.com/­docs/­current/­intro
DeveloperCoveoRealm, acquired by MongoDB in May 2019RisingWave Labs
Initial release20152012201820142022
Current release0.10, February 20241.2, September 2023
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicensecommercialOpen Source infoMIT LicenseOpen SourceOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C++Rust
Server operating systemsFreeBSD
Linux
OS X
hostedserver-lessAndroid
Backend: server-less
iOS
Windows
Docker
Linux
macOS
Data schemeschema-freehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationyesyesyes
Typing infopredefined data types such as float or datenoyesyesyesStandard SQL-types and JSON
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.nonononono
Secondary indexesnoyesyesyesyes
SQL infoSupport of SQLnonoyesnoyes
APIs and other access methodsMemcached protocolRESTful HTTP APIArrow Database Connectivity (ADBC)
CLI Client
JDBC
ODBC
JDBC
PostgreSQL wire protocol
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
C#
Java
JavaScript
Python
C
C# info3rd party driver
C++
Crystal info3rd party driver
Go info3rd party driver
Java
Lisp info3rd party driver
Python
R
Ruby info3rd party driver
Rust
Swift
Zig info3rd party driver
.Net
Java infowith Android only
Objective-C
React Native
Swift
Go
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnononono inforuns within the applications so server-side scripts are unnecessaryUDFs in Python or Java
Triggersnoyesnoyes infoChange Listenersno
Partitioning methods infoMethods for storing different data on different nodesnoneyesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyesnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoyesACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)
Durability infoSupport for making data persistentnoyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes infoIn-Memory realmyes
User concepts infoAccess controlnogranular access controls, API key management, content filtersnoyesUsers and Roles

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Cachelot.ioCoveoDuckDBRealmRisingWave
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