{
"mappings": {
    "release": {
        "properties": {
            "ident":          { "type": "keyword" },
            "revision":       { "type": "keyword" },
            "title":          { "type": "text", "index": true },
            "author":         { "type": "alias", "path": "contrib_names" },
            "journal":        { "type": "alias", "path": "container_name" },
            "date":           { "type": "alias", "path": "release_date" },
            "issn":           { "type": "alias", "path": "container_issnl" },
            "oa":             { "type": "alias", "path": "container_is_oa" },
            "longtail":       { "type": "alias", "path": "container_is_longtail_oa" },
            "release_date":   { "type": "date" },
            "release_type":   { "type": "keyword" },
            "release_status": { "type": "keyword" },
            "language": { "type": "keyword" },
            "doi":      { "type": "keyword" },
            "pmid":     { "type": "keyword" },
            "pmcid":    { "type": "keyword" },
            "isbn13":   { "type": "keyword" },
            "core_id":      { "type": "keyword" },
            "wikidata_qid": { "type": "keyword" },
            "publisher":                { "type": "text", "index": true },
            "container_name":           { "type": "text", "index": true },
            "container_issnl":          { "type": "keyword" },
            "container_is_oa":          { "type": "boolean" },
            "container_is_longtail_oa": { "type": "boolean" },
            "contrib_count":        { "type": "integer" },
            "contrib_names":  { "type": "text", "index": true },
            "ref_count":            { "type": "integer" },
            "file_count":           { "type": "integer" },
            "file_pdf_url":         { "type": "keyword" },
            "file_in_webarchive":   { "type": "boolean" },
            "file_in_ia":           { "type": "boolean" },
            "any_abstract":         { "type": "boolean" },
            "is_kept":              { "type": "boolean" },
            "in_shadow":            { "type": "boolean" }
        }
    }
}
}