RavenDb QueryYourWrites 和 Map/Reduce 索引 [英] RavenDb QueryYourWrites and Map/Reduce indexes

问题描述

对于我之前关于 RavenDb 的问题，我得到了以下评论:

I got the following comment to my previous question about RavenDb:

需要注意的一点是，QueryYourWrites 不适用于 Map/Reduce索引.对于这些你必须使用 WaitForNonStaleResults..()

One thing to note, QueryYourWrites doesn't work with Map/Reduce indexes. For these you have to use WaitForNonStaleResults..()

什么意思?我认为 RavenDb 中的所有索引都是 Map/Reduce 索引...在哪些情况下 QueryYourWrites 选项有效?

What does it mean? I thought all indexes in RavenDb are Map/Reduce indexes... In which cases does QueryYourWrites option work?

推荐答案

抱歉，我写了那个评论，我不太清楚.

Sorry, I wrote that comment and I wasn't very clear.

RavenDB 索引总是需要有一个 Map 部分，但 Reduce 是可选的.所以如果你不指定Reduce函数，它就不是Map/Reduce索引，它只是一个Map索引.

RavenDB indexes always need to have a Map part, but the Reduce is optional. So if you don't specify a Reduce function, it's not a Map/Reduce index, it's just a Map index.

这就是我试图做出的区分.

That was the distinction I was trying to make.

由于 QueryYourWrites 使用的机制，它不适用于 Map/Reduce 索引.但它适用于仅地图索引.

Because of the mechanism that QueryYourWrites uses, it doesn't work with Map/Reduce indexes. But it works fine with a Map only index.

我希望这更清楚?

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