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From Amrit Sarkar <>
Subject Re: Parent child documents partial update
Date Mon, 17 Jul 2017 17:44:22 GMT

Not really. Parent-child documents are stored in a single block
contiguously. Read more about parent-child relationship at:

While we perform partial / atomic update, say {"id":"X",
"fieldA":{"set":"Z"}, that particular doc with X will be fetched (all the
"stored" fields), update will be performed and indexed, all happens in
*DistributedUpdateProcessor* internally. So there is no way it will fetch
the child documents along with it.

I am not sure whether this can be done with current code or it will be
fixed / improved in the future.

Amrit Sarkar
Search Engineer
Lucidworks, Inc.

On Mon, Jul 17, 2017 at 12:44 PM, Sujay Bawaskar <>

> Hi,
> Need a help to understand solr parent child document partial update
> behaviour. Can we perform partial update on parent document without losing
> its chiild documents? My observation is that parent child relationship
> between documents get lost in case partial update is performed on parent.
> Any work around or solution to this issue?
> --
> Thanks,
> Sujay P Bawaskar
> M:+91-77091 53669

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