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From "Grant Ingersoll (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3250) Dynamic Field capabilities based on value not name
Date Thu, 15 Mar 2012 14:49:37 GMT
Dynamic Field capabilities based on value not name
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                 Key: SOLR-3250
                 URL: https://issues.apache.org/jira/browse/SOLR-3250
             Project: Solr
          Issue Type: Improvement
            Reporter: Grant Ingersoll


In some situations, one already knows the schema of their content, so having to declare a
schema in Solr becomes cumbersome in some situations.  For instance, if you have all your
content in JSON (or can easily generate it) or other typed serializations, then you already
have a schema defined.  It would be nice if we could have support for dynamic fields that
used whatever name was passed in, but then picked the appropriate FieldType for that field
based on the value of the content.  So, for instance, if the input is a number, it would select
the appropriate numeric type.  If it is a plain text string, it would pick the appropriate
text field (you could even add in language detection here).  If it is comma separated, it
would treat them as keywords, etc.  Also, we could likely send in a hint as to the type too.

With this approach, you of course have a "first in wins" situation, but assuming you have
this schema defined elsewhere, it is likely fine.

Supporting such cases would allow us to be schemaless when appropriate, while offering the
benefits of schemas when appropriate.  Naturally, one could mix and match these too.

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