Elasticsearch解析异常400

Question

I have been trying to amend my snippet in Python, but to no avail so far. Once I run it, the following message gets populated:

elasticsearch.exceptions.RequestError: RequestError(400, 'parsing_exception', 'Unknown key for a START_ARRAY in [fields].')

Here is my code:

from elasticsearch import Elasticsearch

client = Elasticsearch()
indexName = "medical"
docType = "diseases"
searchFrom = 0
searchSize = 3

searchBody = {
    "fields": ["name"],
    "query": {
        "simple_query_string": {
            "query": '+fatigue+fever+"joint pain"',
            "fields": ["fulltext", "title^5", "name^10"]
        }
    }
}

client.search(
    index=indexName, 
    doc_type=docType,
    body=searchBody, 
    from_=searchFrom, 
    size=searchSize
)

I'm using elasticsearch version 7X.

Answer 1

This refers to the property fields one line above the query property. It shouldn't be there. Here's the dsl .

Answer 2

I think "_source" is what ur looking for
replace "fields" with "_source"

searchBody = {
    "_source": ["name"],
    "query": {
        "simple_query_string": {
            "query": '+fatigue+fever+"joint pain"',
            "fields": ["fulltext", "title^5", "name^10"]
        }
    }
}