DBMS > Coveo vs. LeanXcale vs. OpenSearch

System Properties Comparison Coveo vs. LeanXcale vs. OpenSearch

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Editorial information provided by DB-Engines

Name

Description

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

A highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilities

A distributed, RESTful search and analytics engine forked from Elasticsearch and based on Apache Lucene

Primary database model

Search engine

Key-value store
Relational DBMS

Search engine
Vector DBMS

Secondary database models

Vector DBMS

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

Score	2.30
Rank	#104	Overall
	#11	Search engines

Score	0.25
Rank	#296	Overall
	#43	Key-value stores
	#133	Relational DBMS

Score	17.38
Rank	#32	Overall
	#4	Search engines
	#2	Vector DBMS

Website

www.coveo.com

www.leanxcale.com

github.com/opensearch-project
opensearch.org

Technical documentation

docs.coveo.com

opensearch.org/docs/latest

Developer

Coveo

LeanXcale

The OpenSearch Software Foundation

Initial release

2012

2015

2021

Current release

2.19, February 2025

License

Commercial or Open Source

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.

STACKIT OpenSearch offers OpenSearch in a managed version in enterprise grade, 100% GDPR-compliant, for a wide range of applications like analytics, website search, offering scalability and fast data access.

Implementation language

Java

Server operating systems

hosted

All OS with a Java VM

Data scheme

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

yes

schema-free

Flexible type definitions. Once a type is defined, it is persistent

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

yes

All search fields are automatically indexed

SQL

Support of SQL

yes

through Apache Derby

SQL-like query language

APIs and other access methods

RESTful HTTP API

JDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector

Java API
RESTful HTTP/JSON API

Supported programming languages

C#
Java
JavaScript
Python

C
Java
Scala

Go
Java
JavaScript (Node.js)
PHP
Python
Ruby

Elasticsearch client

Server-side scripts

Stored procedures

yes

Triggers

yes

by using the 'percolation' feature

Partitioning methods

Methods for storing different data on different nodes

yes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Eventual Consistency

Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all

Foreign keys

Referential integrity

yes

Transaction concepts

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

yes

ACID

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.

yes

User concepts

Access control

granular access controls, API key management, content filters

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More resources

Recent citations in the news

Leading Global Enterprises Continue to Find Success with Coveo AI-Relevance and Generative Search
1 May 2025, PR Newswire

Coveo EX Relevance Report Reveals 42% of Information Fails Employees: Too Much Data, Not Enough Relevance
29 April 2025, Olean Times Herald

Private equity firms are Coveo Solutions Inc.'s (TSE:CVO) biggest owners and were hit after market cap dropped CA$125m
11 March 2025, Yahoo Finance

ABB Robotics Selects Coveo for Commerce to Power AI Product Discovery in its Customer Portal
24 April 2025, PR Newswire

Coveo Now a Shopify Premier Technology Partner - Fuel Revenue Growth with Enterprise AI-Search, Product Discovery and Generative Experiences
25 March 2025, PR Newswire

provided by Google News

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OpenSearch 3.0 targets fast AI search with MCP and GPU-powered vectors
7 May 2025, Blocks and Files

OpenSearch 3.0 hits: First major release under Linux Foundation as it battles ElasticSearch for mindshare
7 May 2025, devclass

OpenSearch revs up AI workloads with GPU-accelerated vector search
6 May 2025, SiliconANGLE

OpenSearch 3.0 Launches with Major Upgrades
9 May 2025, It's FOSS News

provided by Google News

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