1. PostgreSQL的Cloud AnalyticDB:
AnalyticDB是阿里云上的在线分析处理数据库系统。它提供PostgreSQL和MySQL版本。 PostgreSQL的AnalyticDB是基于Greenplum开源数据库程序的在线MPP(大规模并行处理)数据仓库服务,并且通过阿里云的一些深入扩展得到了增强。
2. AllegroGraph:
AllegroGraph是高性能的持久性RDF存储,并具有对Graph DBMS的附加支持。它用作文档存储,旨在以JSON-LD格式存储,检索和管理面向文档的信息。 AllegroGraph的第一个版本于2004年发布。适用于PostgreSQL的阿里云AnalyticDB与AllegroGraph之间的区别:
S.NO. | Alibaba Cloud AnalyticDB for PostgreSQL | ALLEGROGRAPH |
---|---|---|
1. | It was developed By Alibaba, Pivotal Software Inc. and PostgreSQL Global Development Group in 2016. | It was developed By Franz Inc. in 2004. |
2. | It is an online MPP (Massively Parallel Processing) data warehousing service based on Greenplum. | It is a high performance, persistent RDF store with additional support for Graph DBMS. |
3. | In Alibaba Cloud AnalyticDB for PostgreSQL there are hosted server operating systems. | Server operating systems for AllegroGraph are linux, OS X and Windows. |
4. | The license of Alibaba Cloud AnalyticDB for PostgreSQL is commercial. | The license of AllegroGraph is also commercial. |
5. | It supports XML Format. | It does not support XML Format. |
6. | It supports the Server-side scripting. | It supports the Server-side scripting with JavaScript or Common Lisp. |
7. | It supports partitioning methods. | The partitioning can be done with Federation. |
8. | It supports SQL query language. | It supports SPARQL as query language. |
9. | It supports replication methods. | It support two replication methods : Master-Slave Replication and Multi-Master Replication. |
10. | AnalyticDB for PostgreSQL provides the concept of Referential Integrity. Hence, there are Foreign Keys. | AllegroGraph does not provide the concept of Referential Integrity. Hence, no Foreign Keys. |
11. | It does not support in-memory capabilities. | It also does not support in-memory capabilities. |
12. | It does not offer any API for user-defined Map/Reduce methods. | It also does not offer any API for user-defined Map/Reduce methods. |
13. | It is available as a cloud service. | It is not available as a cloud service. |
14. | Programming languages supported are C, Java, Perl, Python and R. | Programming languages supported are C#, Clojure, Java, Lisp, Perl, Python, Ruby and Scala. |