{
    "$schema": "http://json-schema.org/schema#",
    "title": "Search result set schema",
    "description": "Ksearch search result set schema",
    "version": "1.0",
    "type": "object",
    "properties": {
        "total": {
            "description": "The number of results",
            "type": "integer"
        },
        "hits": {
            "description": "The ordered list of search results",
            "type": "array",
            "items": {
                "$ref": "https://raw.githubusercontent.com/HumanBrainProject/hbp-data-schemas/master/neuroinformatics/search/search-result-schema-v1.0.json"
            }
        },
        "took": {
            "description": "The time (in milliseconds) it took to execute user query on the server",
            "type": "integer"
        },
        "max_score": {
            "description": "The greatest score of search results",
            "type": "number"
        },
        "aggregations": {
            "description": "Search results aggregation",
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "field": {
                        "description": "Field name from which the bucket key values are taken",
                        "type": "string"
                    },
                    "total": {
                        "description": "The sum of doc_count values.",
                        "type": "integer"
                    },
                    "buckets": {
                        "type": "array",
                        "items": {
                            "type": "object",
                            "properties": {
                                "doc_count": {
                                    "description": "The total number of documents having the value of key as value of field",
                                    "type": "integer"
                                },
                                "key": {
                                    "description": "Field value for which the aggregation is made",
                                    "type": "string"
                                }
                            }
                        }
                    },
                    "name": {
                        "description": "The aggregation name",
                        "type": "string"
                    },
                    "join_back_level": {
                        "description": "The field name (the root of retrieved entity or one of its field names) that is counted in doc_count.",
                        "type": "string"
                    }
                }
            }
        }
    }
}