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RethinkDB vs. eXtremeDB IMDS

RethinkDB eXtremeDB IMDS + Add column
RethinkDB eXtremeDB In-Memory Database System
Preference 25% votes 75% votes
Website rethinkdb.​com www.​mcobject.​com/​extremedbfamily.​shtml
Database model
Data storage
Embeddable No Yes
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce Yes No
Unicode Yes Yes
TTL for entries No Yes
Compression No Yes
Integrity model
Atomicity Conditional Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions No Yes
Referential integrity No No
Revision control Yes No
Locking model
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search No No
Geospatial Indexes Yes Yes
Graph support No Conditional
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture Yes Yes
Value size max. 71 MB ?
System requirements
Operating system
Native driver
Memory minimum 2 GB 150 kB
Programming language
Description RethinkDB is an open-source, scalable, distributed database built to store JSON documents. In-memory database system (IMDS) with options for persistence
Multi-user system Yes Yes
Database ?
Price rating ★★★★★ ?
Standard compliance No Yes
Software distribution
Object-Relational Mapping (ORM) Yes No
Release Date 6ᵗʰ April 2016 September 2001
Documentation level ★★★★★ ★★★☆☆
RESTful Yes ?
Lines of code 2 402 k 206 k
Free to use Yes ?
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Community Driven Good No
Web interface Yes ?
Data encryption No ?
Cloud platform support
Online backup Yes Yes
Partial Index Yes Yes
Function Based Index Yes No
Key length max 127 ?
Log Yes Yes
Implementation flexibility (17% global votes) (0% global votes)
Download rethinkdb.​com/​docs/​install www.​mcobject.​com/​software_eval
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★★ ★★★☆☆
In-Place Update Yes Yes
Free for commercial use Yes No
Sorts Yes Yes
Tuneable write concerns Yes Yes
Open Source Yes No
Triggers Yes Yes
Perfomance ★★★★☆ ★★★★★
Geospatial Yes Yes
Server Side Java Script Yes No
Flexible Table(Schema) Yes Yes
Geo-distributed Yes ?
Clustering over WAN Yes ?
Fully Distributed Yes ?
Stored Procedure Yes Yes
Concurrency Yes ?
Auto-Sharding Yes Yes
Contributors 126 ?
Free edition Yes No
SQL Queries No ?
Monitoring UI Yes ?
CLI` Yes Yes
Creation Date ? 2001
API ? Good
XML Aware ? Basic
Capped Collections ? Yes
Read preferences ? Yes
Event Driven Architecture ? Yes
Pipeline Aggregation ? Yes
Spring Data Support ? No
Corruption Resistant ? Yes
Number of systems in production ? 22 000 000
memcached protocol ? No
Does your mom understand it ? No
Trigram index ? Yes
Patricia Trie index ? Yes
kd-tree index ? Yes
More ? Yes
Point In Time Recovery ? Yes
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RethinkDB eXtremeDB IMDS
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