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当我在 R 中以弹性执行以下主体时出现错误。

{"stored_fields": ["CONTENT.LENGTH"],
                    "_source":["DOC_ID", "DELIVERY_ID", "SRC_SYSTEM", "CONVERS_ID", "CONTRIB_ID", "CONTRIB_TYPE", "PRTCPNT_ID",    "CONTRIB_TS", "LANG", "SYS_NOT", "SURVEIL"],
                    "query": {
                    "bool": {
                    "must": [
                    {', body_search,'}
                    ],
                    "filter": [', body_filter, ']
                    }
                    },
                    "highlight": {
                    "pre_tags" : ["<mark>"],
                    "post_tags" : ["</mark>"],
                    "fields" : {
                    "', curr_search_field,'": {"term_vector" : "with_positions_offsets", "fragment_size" : 200}
                    }
                    } }

错误信息是

错误：400 - [highlight] 无法解析字段 [fields]

没有"term_vector" : "with_positions_offsets",我就不会出错。我怎样才能解决这个问题？我有弹性 v6。

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