[SOLR-8220] Read field from docValues for non stored fields - ASF JIRA



[SOLR-8220] Read field from docValues for non stored fields - ASF JIRA

Many times a value will be both stored="true" and docValues="true" which requires redundant data to be stored on disk. Since reading from docValues is both efficient and a common practice (facets, analytics, streaming, etc), reading values from docValues when a stored version of the field does not exist would be a valuable disk usage optimization.


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