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Subject Query nested document
Date Mon, 20 Oct 2014 11:40:31 GMT

I have question regarding nested document queries:
For example, let’s say that I have the following book:
Book _title: Nested document for dummies
Chapter1_Title: Introduction
Chapter1_Content: Nested documents are fun.
Chapter2_Title: Which technology should I use?
Chapter2_Content: Lucene of course!

First I want to find books that contain an introduction and that are 
about Lucene. So I decide to flatten my data and use 3 multivalued 
fields (Book_Title,Chapter_Title and Chapter_Content), I index my 
document and then I get what I want when I use the following query : “ 
chapter_title:Introduction AND chapter_title:Lucene “
Now I want to find books that contain “fun” in a chapter called 
“introduction”.  My model is no more valid (Chapter2_content is no more 
linked with Chapter2_title). That is why I change my datamodel and use 
nested documents:
I have now a parent with a single valued field Book_title and different 
childs with single valued fields Chapter_title and Chapter_Content. Now, 
when I run the query “chapter_title: Introduction AND 
chapter_content:fun” I also get what I want… But what do I have to do if 
I want to use these two kinds of query with a unique data model?

Thank you,


Aurélien MAZOYER

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