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From "Oliver Bates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-12378) Support missing versionField on indexed docs in DocBasedVersionConstraintsURP
Date Tue, 22 May 2018 23:13:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16484772#comment-16484772
] 

Oliver Bates commented on SOLR-12378:
-------------------------------------

Thanks Mark :)

> Support missing versionField on indexed docs in DocBasedVersionConstraintsURP
> -----------------------------------------------------------------------------
>
>                 Key: SOLR-12378
>                 URL: https://issues.apache.org/jira/browse/SOLR-12378
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: UpdateRequestProcessors
>    Affects Versions: master (8.0)
>            Reporter: Oliver Bates
>            Assignee: Mark Miller
>            Priority: Minor
>              Labels: features, patch
>         Attachments: SOLR-12378.patch, supportMissingVersionOnOldDocs-v1.patch
>
>
> -If we want to start using DocBasedVersionConstraintsUpdateRequestProcessor on an existing
index, we have to reindex everything to set value for the 'versionField' field, otherwise- We
can't start using DocBasedVersionConstraintsUpdateRequestProcessor on an existing index because
we get this line throwing shade:
> {code:java}
> throw new SolrException(SERVER_ERROR,
>         "Doc exists in index, but has null versionField: "
>                 + versionFieldName);
> {code}
> We have to reindex everything into a new collection, which isn't always practical/possible.
The proposal here is to have an option to allow the existing docs to be missing this field
and to simply treat those docs as older than anything coming in with that field set.



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