Gus Heck created SOLR-13419:
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Summary: 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
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Affects Versions: master (9.0)
Reporter: Gus Heck
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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