具有多个索引的 Doctrine 2

问题描述

我正在使用 Zend 框架和 Doctic2.1 进行开发.

I am developing using zend framework and doctrine2.1.

我从数据库生成了实体.

I have generated entities from database.

但问题是:Doctrine 无法识别我的索引.它们根本没有在实体注释中标记.

But the problem is: Doctrine doesn't recognize my indexes. They are not marked in entity annotations at all.

当我去验证模式并从 orm:schema-tool:update --dump-sql 转储 sql 时，它会生成 sql 来删除整个数据库中的所有索引.

And when I go to validate-schema and dump sql from orm:schema-tool:update --dump-sql it generates sql to drop all my indexes across whole database.

我发现 Doctrine 有以下用于定义索引的注释:

I found that Doctrine has following annotation used for defining indexes:

indexes={@index(name="index_name",
                columns={"database_column1","database_column2"}
        )}

但这允许我为多列定义一个索引，而我真的不需要那个.
我想要的是能够在多列上定义多个索引，每列一个索引.

But this allows me to define one index for multiple columns and I don't really need that.
What I want is the ability to define multiple indexes on multiple columns, one index per column.

有什么办法可以做到这一点吗?有没有办法让我可以使用定义多个索引的注释.

Is there a way I can achieve this? Is there a way that I can have annotation that defines multiple indexes.

推荐答案

我会说你可以在 indexs 属性中插入多个索引(但我没有时间测试它):

I would say you can insert multiple indexes in the indexes property (but I haven't had the time to test it):

indexes={
@ORM\Index(name="index_name", columns={"database_column1","database_column2"}),
@ORM\Index(name="index_name2", columns={"database_column1"}),
@ORM\Index(name="index_name3", columns={"database_column2"})
}

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