Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

Get in touch with me:

oren@ravendb.net

+972 52-548-6969

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RavenDB Workshops - Deep dive into practical use of Document Data Modeling

Jun 26 2018

RavenDB 4.1 FeaturesCan you explain that choice?

time to read 2 min | 204 words

One of the features that RavenDB exposes is the ability to get results in match order. In other words, you can write a query like this:

In other words, find me all the employees in London or Seattle, but I want to get the London employees first. This is a pretty simple example. But there are cases where you may involve multiple clauses, full text search, matches on arrays, etc. Figuring out why the documents came back in the order that they did can be complex.

Luckily, RavenDB 4.1 give you a new feature just for that. Look at the last line in the query: “include explanations()”. This will tell RavenDB that you want to dig into the actual details of the query, and in the user interface you’ll get:

And the full explanation for each is:

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Tags:

raven

More posts in "RavenDB 4.1 Features" series:

(22 Aug 2018) MongoDB & CosmosDB Migration Wizards
(04 Jul 2018) This document is included in your subscription
(03 Jul 2018) Detailed query timing details
(02 Jul 2018) Of course I know ya, dude
(29 Jun 2018) Running RavenDB embedded
(26 Jun 2018) Can you explain that choice?
(20 Jun 2018) Cluster wide ACID transactions
(19 Jun 2018) Explain that choice
(22 May 2018) Highlighting
(11 May 2018) Counting my counters
(10 May 2018) JavaScript Indexes
(04 May 2018) SQL Migration Wizard

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FUTURE POSTS

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RECENT COMMENTS

There's a reason we miss `write_exact` and `read_exact` from the standard library. In fact, I am surprised the chunk is actua...

By Pyth0n on Challenge: What does this code do?
kpvleeuwen, I agree, unfortunately I don't have anyone to ask off the top of my head. Thanks, I fixed the headers.

By Oren Eini on Performance discovery: IOPS vs. IOPS
It could be interesting to reach out to storage firmware developers and ask what write patterns they think would be useful ex...

By kpvleeuwen on Performance discovery: IOPS vs. IOPS
Nicholas, You _can_ use the spread operator in RavenDB, which is what I assume you meant, like this: let results = ...

By Oren Eini on Aggregating trees with RavenDB
Unrelated, but the `Object.assign` call can be very annoying. Any chance that the JS engine was updated to V8 and we can hav...

By Nicholas Paldino on Aggregating trees with RavenDB

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