[SOLR-12096] Inconsistent response format in subquery transform

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.4
• Assignee: Ishan Chattopadhyaya
• Reporter: Munendra S N
• Created: 15/Mar/18 07:24
• Updated: 08/Jun/19 15:15
• Resolved: 10/Apr/18 08:45

Description

Solr version - 6.6.2
The response of subquery transform is inconsistent with multi-shard compared to single-shard

Single Shard collection

Request

localhost:8983/solr/k_test/search?sort=score desc,uniqueId desc&q.op=AND&wt=json&q={!parent which=parent_field:true score=max}({!edismax v=$origQuery})&facet=false&fl=uniqueId&fl=score&fl=_children_:[subquery]&fl=uniqueId&origQuery=false&qf=parent_field&_children_.fl=uniqueId&_children_.fl=score&_children_.rows=3&spellcheck=false&_children_.q={!edismax qf=parentId v=$row.uniqueId}&rows=1

Response for above request

{
    "responseHeader": {
        "zkConnected": true,
        "status": 0,
        "QTime": 0,
        "params": {
            "fl": [
                "uniqueId",
                "score",
                "_children_:[subquery]",
                "uniqueId"
            ],
            "origQuery": "false",
            "q.op": "AND",
            "_children_.rows": "3",
            "sort": "score desc,uniqueId desc",
            "rows": "1",
            "q": "{!parent which=parent_field:true score=max}({!edismax v=$origQuery})",
            "qf": "parent_field",
            "spellcheck": "false",
            "_children_.q": "{!edismax qf=parentId v=$row.uniqueId}",
            "_children_.fl": [
                "uniqueId",
                "score"
            ],
            "wt": "json",
            "facet": "false"
        }
    },
    "response": {
        "numFound": 1,
        "start": 0,
        "maxScore": 0.5,
        "docs": [
            {
                "uniqueId": "10001677",
                "score": 0.5,
                "_children_": {
                    "numFound": 9,
                    "start": 0,
                    "docs": [
                        {
                            "uniqueId": "100016771",
                            "score": 0.5
                        },
                        {
                            "uniqueId": "100016772",
                            "score": 0.5
                        },
                        {
                            "uniqueId": "100016773",
                            "score": 0.5
                        }
                    ]
                }
            }
        ]
    }
}

Here, children suquery response is as expected (Based on documentation)

Multi Shard collection(2)

Request

localhost:8983/solr/k_test_2/search?sort=score desc,uniqueId desc&q.op=AND&wt=json&q={!parent which=parent_field:true score=max}({!edismax v=$origQuery})&facet=false&fl=uniqueId&fl=score&fl=_children_:[subquery]&fl=uniqueId&origQuery=false&qf=parent_field&_children_.fl=uniqueId&_children_.fl=score&_children_.rows=3&spellcheck=false&_children_.q={!edismax qf=parentId v=$row.uniqueId}&rows=1

Response

{
    "responseHeader": {
        "zkConnected": true,
        "status": 0,
        "QTime": 11,
        "params": {
            "fl": [
                "uniqueId",
                "score",
                "_children_:[subquery]",
                "uniqueId"
            ],
            "origQuery": "false",
            "q.op": "AND",
            "_children_.rows": "3",
            "sort": "score desc,uniqueId desc",
            "rows": "1",
            "q": "{!parent which=parent_field:true score=max}({!edismax v=$origQuery})",
            "qf": "parent_field",
            "spellcheck": "false",
            "_children_.q": "{!edismax qf=parentId v=$row.uniqueId}",
            "_children_.fl": [
                "uniqueId",
                "score"
            ],
            "wt": "json",
            "facet": "false"
        }
    },
    "response": {
        "numFound": 5,
        "start": 0,
        "maxScore": 0.5,
        "docs": [
            {
                "uniqueId": "10006197",
                "_children_": [
                    {
                        "uniqueId": "100061971",
                        "score": 0.5
                    },
                    {
                        "uniqueId": "100061972",
                        "score": 0.5
                    },
                    {
                        "uniqueId": "100061973",
                        "score": 0.5
                    }
                ],
                "score": 0.5
            }
        ]
    }
}

As you can see, children subquery response is a list instead of Map

Sub-Tasks

• Redundant code in JSON response writer: Closed