[SOLR-4036] JSON response writer mangles type in some cases for ExternalFileFields - ASF JIRA

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When using an external file field (containing, say, reads), values in the field can be returned using &fl=field(reads), yielding something like:

{"response":{"numFound":...,"start":0,"maxScore":1.0,"docs":[

{"field(reads)":0.0}

]}}

In the response, the field can be renamed to, say, views like this: &fl=views:field(reads), yielding something like:

{"response":{"numFound":...,"start":0,"maxScore":1.0,"docs":[

{"views":0.0}

]}}

If, in this case, the field is renamed to reads: &fl=reads:field(reads), the result is now:

{"response":{"numFound":...,"start":0,"maxScore":1.0,"docs":[

{"reads":[0.0]}

]}}

(the 0.0 reads are now encapsulated in a list).

The same problem does not occur in the XML response writer.

is duplicated by

SOLR-4666 JSON Formating

SOLR-4128 multivalued dynamicField matching 'score' causes text response writers to output score as an array