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DBMS > Apache Cassandra vs. Coveo vs. Elasticsearch vs. QuestDB

System Properties Comparison Apache Cassandra vs. Coveo vs. Elasticsearch vs. QuestDB

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Editorial information provided by DB-Engines
NameApache Cassandra  Xexclude from comparisonCoveo  Xexclude from comparisonElasticsearch  Xexclude from comparisonQuestDB  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentA distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metricA high performance open source SQL database for time series data
Primary database modelWide column storeSearch engineSearch engine
Vector DBMS
Time Series DBMS
Secondary database modelsVector DBMS infostarting with release V5Document store
Spatial DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score108.05
Rank#11  Overall
#1  Wide column stores
Score2.30
Rank#104  Overall
#11  Search engines
Score123.81
Rank#9  Overall
#1  Search engines
#1  Vector DBMS
Score3.26
Rank#79  Overall
#6  Time Series DBMS
Websitecassandra.apache.orgwww.coveo.comwww.elastic.co/­elasticsearchquestdb.io
Technical documentationcassandra.apache.org/­doc/­latestdocs.coveo.comwww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.htmlquestdb.io/­docs
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookCoveoElasticQuestDB Technology Inc
Initial release2008201220102014
Current release5.0-rc1, July 20248.6, January 2023
License infoCommercial or Open SourceOpen Source infoApache version 2commercialOpen Source infoElastic LicenseOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaJava (Zero-GC), C++, Rust
Server operating systemsBSD
Linux
OS X
Windows
hostedAll OS with a Java VMLinux
macOS
Windows
Data schemeschema-freehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationschema-free infoFlexible type definitions. Once a type is defined, it is persistentyes infoschema-free via InfluxDB Line Protocol
Typing infopredefined data types such as float or dateyesyesyesyes
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.nononono
Secondary indexesrestricted infoonly equality queries, not always the best performing solutionyesyes infoAll search fields are automatically indexedno
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)noSQL-like query languageSQL with time-series extensions
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
RESTful HTTP APIJava API
RESTful HTTP/JSON API
HTTP REST
InfluxDB Line Protocol (TCP/UDP)
JDBC
PostgreSQL wire protocol
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
C#
Java
JavaScript
Python
.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
C infoPostgreSQL driver
C++
Go
Java
JavaScript (Node.js)
Python
Rust infoover HTTP
Server-side scripts infoStored proceduresnonoyesno
Triggersyesyesyes infoby using the 'percolation' featureno
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"yesShardinghorizontal partitioning (by timestamps)
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleyesyesSource-replica replication with eventual consistency
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnoES-Hadoop Connectorno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allImmediate Consistency
Foreign keys infoReferential integritynoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsyesnoACID for single-table writes
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noMemcached and Redis integrationyes infothrough memory mapped files
User concepts infoAccess controlAccess rights for users can be defined per objectgranular access controls, API key management, content filters
More information provided by the system vendor
Apache CassandraCoveoElasticsearchQuestDB
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