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PostgreSQL vs. CouchDB

PostgreSQL CouchDB + Add column
Category
Preference 75% votes 25% votes
Website postgresql.​org couchdb.​apache.​org
License
Design
Database model
Data storage
Embeddable No Yes
Features
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce No Yes
Unicode Yes Yes
TTL for entries Yes ?
Compression Yes Yes
Integrity
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity Yes No
Revision control Yes Yes
Locking model
Indexing
Secondary Indexes Yes No
Composite keys Yes Yes
Full text search Yes No
Geospatial Indexes Yes No
Graph support Conditional No
Distribution
Horizontal scalable Yes No
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture ? Yes
Restrictions
Value size max. 1 GB ?
System requirements
Operating system
Native driver
Memory minimum 32 MB ?
Architecture
Programming language
More
Description Object-Relational Database Management System Document Oriented Database
Brand
Multi-user system Yes Yes
Extension/Plug-in Yes ?
Database
Multilingual content Yes ?
Price rating ★★★★★ ★★★★★
WYSIWYG-Editor Yes ?
Multiple projects Yes ?
Standard compliance Yes Yes
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date May 1995 2005
Documentation level ★★★★★ ★★★★☆
RESTful Yes Yes
Lines of code 839 k 164 k
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Creation Date 1995 ?
Community Driven Good Good
Web interface Yes Yes
Data encryption Yes No
API Good Good
XML Aware Good ?
Color ?
Cloud platform support
Online backup Yes Yes
Partial Index Yes ?
Function Based Index Yes Yes
Log Yes Yes
Implementation flexibility (83% global votes) (0% global votes)
Download www.​postgresql.​org/​download/​ https:/​/​couchdb.​apache.​org/​#download
Level of access authorization ?
Backup functionality Good Good
Query Cache Yes Yes
Ease of use ★★★★★ ★★★★★
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns Yes Yes
Read preferences Yes ?
Open Source Yes Yes
Op/s 1 000 005 ?
XQuery Support Yes ?
Triggers Yes ?
Server side custom code Yes Yes
Perfomance ★★★★★ ★★★★☆
Cloud-enabled Yes ?
Minimal memory footprint 32 MB ?
Multivariate Testing Yes ?
Materialized Views Yes ?
Pipeline Aggregation Yes ?
Spring Data Support Yes ?
Geospatial Yes Yes
Text Analytics Yes ?
Server Side Java Script Yes Yes
HTML5 Charts No ?
JSON Yes Yes
Flexible Table(Schema) Yes Yes
Geo-distributed Yes Yes
Batch Loading Yes ?
ORM Join Support Yes ?
Fully Distributed Yes ?
Stored Procedure Yes ?
Concurrency Yes ?
Auto-Sharding No No
Contributors 21 102
24/7 support Yes ?
Free edition Yes Yes
SQL Queries Yes ?
User and Group role based security model Yes ?
3D Support No ?
Monitoring UI Yes Yes
Recursive queries Yes ?
Network datatype Yes ?
Windowed aggregate Yes ?
Online backup (no locking) Yes ?
CLI` Yes ?
Point In Time Recovery Yes ?
Synchronisation ?
WSDL ? No
Ajax ? Yes
Re-Reduce ? Yes
+ Add row ++
PostgreSQL CouchDB
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