DBMS > Coveo vs. Google Cloud Datastore vs. XTDB

System Properties Comparison Coveo vs. Google Cloud Datastore vs. XTDB

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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

Automatically scaling NoSQL Database as a Service (DBaaS) on the Google Cloud Platform

A general purpose database with bitemporal SQL and Datalog and graph queries

Primary database model

Search engine

Document store

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

Score	2.30
Rank	#104	Overall
	#11	Search engines

Score	3.62
Rank	#71	Overall
	#12	Document stores

Score	0.20
Rank	#314	Overall
	#46	Document stores

Website

www.coveo.com

cloud.google.com/datastore

github.com/xtdb/xtdb
www.xtdb.com

Technical documentation

docs.coveo.com

cloud.google.com/datastore/docs

www.xtdb.com/docs

Developer

Coveo

Google

Juxt Ltd.

Initial release

2012

2008

2019

Current release

1.19, September 2021

License

Commercial or Open Source

commercial

Open Source

MIT License

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.

Implementation language

Clojure

Server operating systems

hosted

All OS with a Java 8 (and higher) VM
Linux

Data scheme

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

schema-free

Typing

predefined data types such as float or date

yes

yes, details here

yes, extensible-data-notation format

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

SQL

Support of SQL

SQL-like query language (GQL)

limited SQL, making use of Apache Calcite

APIs and other access methods

RESTful HTTP API

gRPC (using protocol buffers) API
RESTful HTTP/JSON API

HTTP REST
JDBC

Supported programming languages

C#
Java
JavaScript
Python

.Net
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby

Clojure
Java

Server-side scripts

Stored procedures

using Google App Engine

Triggers

yes

Callbacks using the Google Apps Engine

Partitioning methods

Methods for storing different data on different nodes

yes

Sharding

none

Replication methods

Methods for redundantly storing data on multiple nodes

yes

Multi-source replication using Paxos

yes, each node contains all data

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

using Google Cloud Dataflow

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Immediate Consistency or Eventual Consistency depending on type of query and configuration

Strong Consistency is default for entity lookups and queries within an Entity Group (but can instead be made eventually consistent). Other queries are always eventual consistent.

Foreign keys

Referential integrity

yes

via ReferenceProperties or Ancestor paths

Transaction concepts

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

yes

ACID

Serializable Isolation within Transactions, Read Committed outside of Transactions

ACID

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

yes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB

In-memory capabilities

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

User concepts

Access control

granular access controls, API key management, content filters

Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)

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More resources

Recent citations in the news

Optimistic Investors Push Coveo Solutions Inc. (TSE:CVO) Shares Up 25% But Growth Is Lacking
16 May 2025, simplywall.st

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

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

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

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

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