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https://issues.apache.org/jira/browse/SOLR-705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011555#comment-13011555
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Ryan McKinley commented on SOLR-705:
------------------------------------

SOLR-1566 is now commited, so this should be pretty easy to get wrapped up

I don't have any experience with sharding so someone else will need to step up 
for this one.

Looking at it quickly, if the process that fills in the DocList knows what 
shard it is, then it would be trivial to add something similar to the value 
augmenter.  If the SearchComponent needs to set the field it will be a little 
more complicated



> Distributed search should optionally return docID->shard map
> ------------------------------------------------------------
>
>                 Key: SOLR-705
>                 URL: https://issues.apache.org/jira/browse/SOLR-705
>             Project: Solr
>          Issue Type: Improvement
>    Affects Versions: 1.3
>         Environment: all
>            Reporter: Brian Whitman
>            Assignee: Ryan McKinley
>             Fix For: Next
>
>         Attachments: SOLR-705.patch, SOLR-705.patch, SOLR-705.patch, 
> SOLR-705.patch, SOLR-705.patch, SOLR-705.patch
>
>
> SOLR-303 queries with &shards parameters set need to return the dociD->shard 
> mapping in the response. Without it, updating/deleting documents when the # 
> of shards is variable is hard. We currently set this with a special 
> requestHandler that filters /update and inserts the shard as a field in the 
> index but it would be better if the shard location came back in the query 
> response outside of the index.

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