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https://issues.apache.org/jira/browse/SOLR-13419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16868540#comment-16868540
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ASF subversion and git services commented on SOLR-13419:
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Commit 5d47875184e09e9e811b5dfde397222db6233a78 in lucene-solr's branch
refs/heads/master from Gus Heck
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=5d47875 ]
SOLR-13419 - Better infix for TRA collection names
> Add TRA denoting Infix to TRA collection names
> ----------------------------------------------
>
> Key: SOLR-13419
> URL: https://issues.apache.org/jira/browse/SOLR-13419
> Project: Solr
> Issue Type: Sub-task
> Components: SolrCloud
> Affects Versions: master (9.0)
> Reporter: Gus Heck
> Assignee: Gus Heck
> Priority: Major
> Attachments: SOLR-13419.patch, SOLR-13419.patch
>
>
> One of the things that Dimensional Routed aliases (DRA) will need to be able
> to do is provide the component routing features based on the route value in
> the collection name. With multiple dimensions it becomes necessary to pull
> this information out on a per-dimension basis and the current Time Routed
> Alias (TRA) collection names have only a simple underscore between the alias
> name and the route value timestamp. Furthermore the timestamps are variable
> in length, having truncation of low significance zero fields as an
> intentional feature (collections falling evenly on the month boundary will
> omit the day/hour/min fields). This makes recognizing the TRA part of a DRA
> complex. This issue will bring TRA's in line with CRA's so that both follow
> the pattern:
> alias__type__routevalue
> Specifically the new pattern will use __TRA__ for the type section. This
> change must not break existing TRA's, and will not update existing collection
> names, but the two formats have to co-exist peacefully going forward. DRA's
> will only support time dimensions with the new format however, with a general
> form of:
> alias__type__routevalue__type__routevalue
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