用于Redshift的休眠方言 [英] Hibernate dialect for Redshift

问题描述

我的应用程序中使用了多个数据库，redshift是其中之一.由于使用hibernate框架配置连接，因此我尝试使用适当的方言进行redshift.但是 PostgreSQL9Dialect 和 MySQL5InnoDBDialect 都对我有用.

There are multiple databases used in my application and redshift is one of them. Because of using hibernate framework for configuring the connections I am trying to use appropriate dialect for redshift. But both PostgreSQL9Dialect and MySQL5InnoDBDialect are working for me.

好奇地知道哪种方言最适合Redshift? 另外，我还有以下问题.

Curious to know which dialect is best for Redshift? Also, I have below questions.

使用休眠模式时，方言是强制性的吗?

Is dialect mandatory while using hibernate?

如果什么都没提到，默认的方言是什么?

What is the default dialect if nothing is mentioned?

推荐答案

由于Redshift基于PostgreSQL 8.0.2(请参见

As Redshift is based on PostgreSQL 8.0.2 (see this) , it is better to use PostgreSQL dialect. Since it has some differences between PostgreSQL, it is not surprise that it will not work for some cases but you could have a try.

方言对于休眠是必需的.如果未指定方言，它将尝试根据从JDBC驱动程序获取的元数据来选择最适合您的方言.如果无法选择方言，它将抛出异常，说明

Dialect is mandatory for hibernate . If you do not specify a dialect , it will try to choose the most suitable one for you based on the metadata get from the JDBC driver. If no dialect can be chosen , it will throw an exception saying that Unable to determine Dialect to use.

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