DBMS > PostGIS vs. XTDB

System Properties Comparison PostGIS vs. XTDB

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Editorial information provided by DB-Engines

Name

Description

Spatial extension of PostgreSQL

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

Primary database model

Spatial DBMS

Document store

Secondary database models

Relational DBMS

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Score	18.94
Rank	#30	Overall
	#1	Spatial DBMS

Score	0.20
Rank	#314	Overall
	#46	Document stores

Website

postgis.net

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

Technical documentation

postgis.net/documentation

www.xtdb.com/docs

Developer

Juxt Ltd.

Initial release

2005

2019

Current release

3.4.2, February 2024

1.19, September 2021

License

Commercial or Open Source

Open Source

GPL v2.0

Open Source

MIT License

Cloud-based only

Only available as a cloud service

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Implementation language

Clojure

Server operating systems

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

Data scheme

yes

schema-free

Typing

predefined data types such as float or date

yes

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.

yes

Secondary indexes

yes

SQL

Support of SQL

yes

limited SQL, making use of Apache Calcite

APIs and other access methods

HTTP REST
JDBC

Supported programming languages

Clojure
Java

Server-side scripts

Stored procedures

user defined functions

Triggers

yes

Partitioning methods

Methods for storing different data on different nodes

yes

based on PostgreSQL

none

Replication methods

Methods for redundantly storing data on multiple nodes

yes

based on PostgreSQL

yes, each node contains all data

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

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

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

yes

based on PostgreSQL

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