[jira] [Created] (SOLR-5335) Add support for "default" operator

["Steven Bower (JIRA)" <ji...@apache.org>]

Steven Bower created SOLR-5335:
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             Summary: Add support for "default" operator
                 Key: SOLR-5335
                 URL: https://issues.apache.org/jira/browse/SOLR-5335
             Project: Solr
          Issue Type: Sub-task
            Reporter: Steven Bower


In cases where a value is missing it expressions just simply don't return a value and are considered "missing".. eg add( fieldA, fieldB) if fieldB doesn't exist in a doc the "add" is considered missing. Would be nice to have a "default" operator to handle edge cases.. eg add( fieldA, default( fieldB, 0 )) such that the value 0 will be used instead of a "missing" value..

This could also handle the div by zero case too



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