DBMS > Hypertable vs. SpaceTime vs. VelocityDB vs. YTsaurus

System Properties Comparison Hypertable vs. SpaceTime vs. VelocityDB vs. YTsaurus

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Editorial information provided by DB-Engines

Name

Hypertable has stopped its further development with March 2016 and is removed from the DB-Engines ranking.

Description

An open source BigTable implementation based on distributed file systems such as Hadoop

SpaceTime is a spatio-temporal DBMS with a focus on performance.

A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)

YTsaurus is an open source platform for distributed storage and processing.

Primary database model

Wide column store

Spatial DBMS

Graph DBMS
Object oriented DBMS

Document store
Key-value store

Secondary database models

Relational DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	0.03
Rank	#392	Overall
	#8	Spatial DBMS

Score	0.11
Rank	#354	Overall
	#37	Graph DBMS
	#16	Object oriented DBMS

Score	0.21
Rank	#324	Overall
	#45	Document stores
	#48	Key-value stores

Website

www.mireo.com/spacetime

velocitydb.com

ytsaurus.tech

Technical documentation

velocitydb.com/UserGuide

ytsaurus.tech/docs/en

Developer

Hypertable Inc.

Mireo

VelocityDB Inc

Yandex

Initial release

2009

2020

2011

2023

Current release

0.9.8.11, March 2016

7.x

License

Commercial or Open Source

Open Source

GNU version 3. Commercial license available

commercial

Open Source

Apache License, Version 2.0

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

C++

Server operating systems

Linux
OS X
Windows

an inofficial Windows port is available

Linux

Any that supports .NET

Ubuntu

Data scheme

schema-free

yes

Typing

predefined data types such as float or date

yes

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.

Secondary indexes

restricted

only exact value or prefix value scans

yes

SQL

Support of SQL

A subset of ANSI SQL is implemented

YQL, an SQL-based language, is supported

APIs and other access methods

C++ API
Thrift

RESTful HTTP API

.Net

Supported programming languages

C++
Java
Perl
PHP
Python
Ruby

C#
C++
Python

.Net

C++
Go
Java
JavaScript
Python

Server-side scripts

Stored procedures

Triggers

Callbacks are triggered when data changes

Partitioning methods

Methods for storing different data on different nodes

Sharding

Fixed-grid hypercubes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

selectable replication factor on file system level

Real-time block device replication (DRBD)

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys

Referential integrity

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

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts

Access control

yes

Based on Windows Authentication

Access Control Lists

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