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From Shawn Heisey <>
Subject Re: parent/child rows in solr
Date Wed, 12 Sep 2018 03:00:27 GMT
On 9/11/2018 8:35 PM, John Smith wrote:
> The problem is that the math isn't a simple case of adding up all the row
> counts. These are "left outer join"s. In sql, it would be this query:

I think we'll just have to conclude that I do not understand what you 
are doing.  I have no idea what "left outer join" even means, how it's 
different than a join that's NOT "left outer".

I will say this:  Solr is not very efficient at joins, and there are a 
bunch of caveats involved.  It's usually better to go with a flat 
document space for a search engine.


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