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PostgreSQL vs. LMDB

PostgreSQL LMDB + Add column
Category
Preference (65% global votes) (63% global votes)
Website www.​postgresql.​org symas.​com/​mdb
License
Design
Database model
Data storage
Embeddable No Yes
Features
Query language
Data types
Conditional entry updates Yes No
Map and reduce No No
Unicode Yes No
TTL for entries Yes No
Compression Yes No
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 No
Locking model
Indexing
Secondary Indexes Yes No
Composite keys Yes No
Full text search Yes No
Geospatial Indexes Yes No
Graph support Conditional No
Distribution
Horizontal scalable Yes No
Replication Yes No
Replication mode ?
Sharding Yes No
Restrictions
Value size max. 1 GB 4 GB
System requirements
Operating system
Native driver
Memory minimum 32 MB 64 kB
Architecture
Programming language
More
Description Object-Relational Database Management System Memory-Mapped, Copy-on-Write
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 ?
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date May 1995 September 2011
Documentation level ★★★★★ ★★★★★
RESTful Yes ?
Lines of code 839 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 Yes ?
API Good Basic
XML Aware Good ?
Color ?
Cloud platform support ?
Online backup Yes Yes
Partial Index Yes ?
Function Based Index Yes No
Log Yes ?
Implementation flexibility (83% global votes) (100% global votes)
Download www.​postgresql.​org/​download/​ gitorious.​org/​mdb
Level of access authorization ?
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 ?
Read preferences Yes No
Open Source Yes Yes
Op/s 1 000 005 ?
XQuery Support Yes ?
Triggers Yes ?
Server side custom code 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 ?
Text Analytics Yes ?
Server Side Java Script Yes ?
HTML5 Charts No ?
JSON Yes Yes
Flexible Table(Schema) Yes ?
Geo-distributed Yes ?
Batch Loading Yes Yes
ORM Join Support Yes ?
Fully Distributed Yes ?
Stored Procedure Yes ?
Concurrency Yes ?
Auto-Sharding No ?
Contributors 21 ?
24/7 support Yes ?
Free edition Yes ?
SQL Queries Yes ?
User and Group role based security model Yes ?
3D Support No ?
Monitoring UI Yes ?
Recursive queries Yes ?
Network datatype Yes ?
Windowed aggregate Yes ?
Online backup (no locking) Yes ?
CLI` Yes ?
:( No ?
; drop table users; No ?
Point In Time Recovery Yes ?
Creation Date ? 2009
Maximum size ? 9.2 EB
Corruption Resistant ? Yes
Does your mom understand it ? No
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PostgreSQL LMDB
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