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RethinkDB vs. LMDB

RethinkDB LMDB + Add column
Preference (48% global votes) (57% global votes)
Website rethinkdb.​com symas.​com/​mdb
Database model
Data storage
Embeddable No Yes
Query language
Data types
Conditional entry updates Yes No
Map and reduce Yes No
Unicode Yes No
TTL for entries No No
Compression No No
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 No
Composite keys Yes No
Full text search No No
Geospatial Indexes Yes No
Graph support No No
Horizontal scalable Yes No
Replication Yes No
Replication mode
Sharding Yes No
Shared nothing architecture Yes ?
Value size max. 71 MB 4 GB
System requirements
Operating system
Native driver
Memory minimum 2 GB 64 kB
Programming language
Description RethinkDB is an open-source, scalable, distributed database built to store JSON documents. Memory-Mapped, Copy-on-Write
Multi-user system Yes Yes
Price rating ★★★★★ ★★★★★
Standard compliance No ?
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date 6ᵗʰ April 2016 September 2011
Documentation level ★★★★★ ★★★★★
RESTful Yes ?
Lines of code 2 402 k 7 k
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Community Driven Good Good
Web interface Yes ?
Data encryption No ?
Cloud platform support ?
Online backup Yes Yes
Partial Index Yes ?
Function Based Index Yes No
Key length max 127 ?
Log Yes ?
Implementation flexibility (17% global votes) (50% global votes)
Download rethinkdb.​com/​docs/​install gitorious.​org/​mdb
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★★ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns Yes ?
Open Source Yes Yes
Triggers Yes ?
Perfomance ★★★★☆ ★★★★★
Geospatial Yes ?
Server Side Java Script Yes ?
JSON Yes Yes
Flexible Table(Schema) Yes ?
Geo-distributed Yes ?
Clustering over WAN Yes ?
Fully Distributed Yes ?
Stored Procedure Yes ?
Concurrency Yes ?
Auto-Sharding Yes ?
Contributors 126 ?
Free edition Yes ?
SQL Queries No ?
Monitoring UI Yes ?
CLI` Yes ?
Creation Date ? 2009
API ? Basic
Read preferences ? No
Maximum size ? 9.2 EB
Batch Loading ? Yes
Corruption Resistant ? Yes
+ Add row ++
RethinkDB LMDB
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