DBMS > Apache Cassandra vs. Coveo vs. GreptimeDB

System Properties Comparison Apache Cassandra vs. Coveo vs. GreptimeDB

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Editorial information provided by DB-Engines

Name

Description

Wide-column store based on ideas of BigTable and DynamoDB

Optimized for write access

AI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code development

An open source Time Series DBMS built for increased scalability, high performance and efficiency

Primary database model

Wide column store

Search engine

Time Series DBMS

Secondary database models

Vector DBMS

starting with release V5

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	97.94
Rank	#11	Overall
	#1	Wide column stores

Score	2.41
Rank	#108	Overall
	#11	Search engines

Score	0.13
Rank	#334	Overall
	#29	Time Series DBMS

Website

cassandra.apache.org

www.coveo.com

greptime.com

Technical documentation

cassandra.apache.org/doc/latest

docs.coveo.com

docs.greptime.com

Developer

Apache Software Foundation

Apache top level project, originally developped by Facebook

Coveo

Greptime Inc.

Initial release

2008

2012

2022

Current release

5.0-rc1, July 2024

License

Commercial or Open Source

Open Source

Apache version 2

commercial

Open Source

Apache Version 2.0

Cloud-based only

Only available as a cloud service

yes

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Astra DB: Multi-cloud DBaaS built on Apache Cassandra.

Implementation language

Java

Rust

Server operating systems

BSD
Linux
OS X
Windows

hosted

Android
Docker
FreeBSD
Linux
macOS
Windows

Data scheme

schema-free

hybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configuration

schema-free, schema definition possible

Typing

predefined data types such as float or date

yes

XML support

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

Secondary indexes

restricted

only equality queries, not always the best performing solution

yes

SQL

Support of SQL

SQL-like SELECT, DML and DDL statements (CQL)

yes

APIs and other access methods

Proprietary protocol

CQL (Cassandra Query Language, an SQL-like language)
Thrift

RESTful HTTP API

gRPC
HTTP API
JDBC

Supported programming languages

C#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript

Node.js
Perl
PHP
Python
Ruby
Scala

C#
Java
JavaScript
Python

C++
Erlang
Go
Java
JavaScript

Server-side scripts

Stored procedures

Python

Triggers

yes

Partitioning methods

Methods for storing different data on different nodes

Sharding

no "single point of failure"

yes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

selectable replication factor

Representation of geographical distribution of servers is possible

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

Consistency concepts

Methods to ensure consistency in a distributed system

Eventual Consistency
Immediate Consistency

can be individually decided for each write operation

Immediate Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

Atomicity and isolation are supported for single operations

yes

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

User concepts

Access control

Access rights for users can be defined per object

granular access controls, API key management, content filters

Simple rights management via user accounts

More information provided by the system vendor

Specific characteristics

Apache Cassandra is the leading NoSQL, distributed database management system, well...
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GreptimeDB is a SQL & Python-enabled timeseries database system built from scratch...
» more

Competitive advantages

No single point of failure ensures 100% availability . Operational simplicity for...
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- Inherits advantages of Rust, such as excellent performance, memory safe, resource...
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Typical application scenarios

Internet of Things (IOT), fraud detection applications, recommendation engines, product...
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For IoT industries, GreptimeDB can seamless integrate with message queues and other...
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Key customers

Apple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more

Greptime's clients span multiple sectors including IoT, connected vehicles, and energy...
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Market metrics

Apache Cassandra is used by 40% of the Fortune 100.
» more

GreptimeDB has garnered global recognition by topping GitHub trends following its...
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Licensing and pricing models

Apache licenseÂ Pricing for commercial distributions provided by DataStax and available...
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GreptimeDB: open source, distributed, cloud-native TSDB; supports Hybrid Time-series...
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News

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3 December 2024

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2 December 2024

AWS and DataStax: A Year of Transformative Innovation in GenAI and Real-Time Data
26 November 2024

Streamlining Data Queries with Amazon Q and Cassandra Query Language
25 November 2024

Agents Love Astra DB: Field-tested, Mission-Critical Infrastructure for Agentic AI Applications
22 November 2024

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