1.亚马逊红移：
它是一个基于云的数据仓库。 Amazon Redshift 拥有商业许可证，并且是 Amazon Web 服务的一部分。它处理大量数据并以其可扩展性而闻名。它并行处理多个数据。它使用 ACID 特性作为其工作原理并且非常流行。用C语言实现，可用性高。
2. PostgreSQL :
PostgreSQL 是一种具有对象关系模型的数据库，由 PostgreSQL 全球开发组于 1989 年开发，是一款功能强大的免费开源软件。它也被称为 Postgres。 PostgreSQL 得到了大多数操作系统的支持，并且具有良好的性能。它是 SQL 的扩展版本并具有附加功能。它主要是根据ACID的原理工作的。它是用C语言实现的。
Amazon Redshift 和 PostgreSQL 之间的区别：
| S.NO. | Amazon Redshift | PostgreSQL |
|---|---|---|
| 1. | Amazon Redshift was developed in 2012 by Amazon. | PostgreSQL was developed in 1989 by PostgreSQL Global Development Group. |
| 2. | It is a commercial software. | It is an open-source software. |
| 3. | It is cloud based. | It is not cloud based. |
| 4. | It supports hosted operating systems. | It supports operating systems like Solaris, Unix, Windows. |
| 5. | The rating of Amazon Redshift is lower than PostgreSQL. | The rating of PostgreSQL is high than Amazon Redshift. |
| 6. | It doesn’t have XML support. | It has XML support. |
| 7. | It does not have triggers. | It has triggers. |
| 8. | It has sharding as its partitioning method. | It has partitioning by range. |
| 9. | It provides in-memory capability of the system. | It doesn’t provides in-memory capability of the system. |
| 10. | It is a large scale data warehouse. | It is a relational database. |