[SOLR-14996] Facet incorrect counts when FQ exclusion applied with collapsing - ASF JIRA

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Details

Type: Bug
Status: Open
Priority: Critical
Resolution: Unresolved
Affects Version/s: 8.6.3
Fix Version/s: None
Component/s: faceting
Labels:
None

Description

numFound not correct according to what is displayed in facets with exclusion when used collapsing and FQ with tag.

Here example query:

curl --location --request GET 'http://localhost:8981/solr/test/select?facet.field={!ex=selected}job_type&facet=on&fq={!collapse%20field=user_id}&fq={!tag=selected}job_type:thinker&q=*:*&rows=0'

result is:

{
    "responseHeader": {
        "zkConnected": true,
        "status": 0,
        "QTime": 15,
        "params": {
            "q": "*:*",
            "facet.field": "{!ex=selected}job_type",
            "fq": [
                "{!collapse field=user_id}",
                "{!tag=selected}job_type:thinker"
            ],
            "rows": "0",
            "facet": "on"
        }
    },
    "response": {
        "numFound": 850,
        "start": 0,
        "maxScore": 1.0,
        "numFoundExact": true,
        "docs": []
    },
    "facet_counts": {
        "facet_queries": {},
        "facet_fields": {
            "job_type": [
                "runner",
                220,
                "developer",
                202,
                "digger",
                202,
                "thinker",
                195,
                "ninja",
                181
            ]
        },
        "facet_ranges": {},
        "facet_intervals": {},
        "facet_heatmaps": {}
    }
}