Correspondências exatas no Atlas Search: guia para desenvolvedores

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{
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  "mappings": {
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    "dynamic": true,
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    "fields":{
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      "category": [
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        {
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          "type": "token"
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        }
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      ]
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    }
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  }
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}

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[
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  {
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    $search: {
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      equals: {
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        path: "category",
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        value: "Technology"
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      }
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    }
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  }
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]

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    {
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      "charFilters": [],
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      "name": "search_keyword_lowercaser",
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      "tokenFilters": [
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        {
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          "type": "lowercase"
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        }
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      ],
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      "tokenizer": {
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        "type": "keyword"
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      }
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    }
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  ]

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{
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  $search: {
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     "index": "movies_search_index"
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     "phrase": {
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       "query": "Red Robin",
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       "path": "title"
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     }
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  }
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}

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{
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  $search: {
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    "index": <index name>, // optional, defaults to "default"
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    "text": {
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      "query": "<search-string>",
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      "path": "<field-to-search>",
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      "fuzzy": <options>,
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      "score": <options>,
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      "synonyms": "<synonyms-mapping-name>"
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    }
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  }
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}

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db.movies.aggregate([
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  {
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    $search: {
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      "text": {
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        "path": "title",
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        "query": "automobile",
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        "synonyms": "transportSynonyms"
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      }
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    }
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  },
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  {
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    $limit: 10
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  },
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  {
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    $project: {
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      "_id": 0,
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      "title": 1,
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      "score": { $meta: "searchScore" }
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    }
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  }
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])

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db.movies.aggregate([
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  {
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    $search: {
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      "text": {
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        "query": "Helsinki",
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        "path": "plot"
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      }
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    }
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  },
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  {
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    $project: {
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      plot: 1,
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      title: 1,
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      score: { $meta: "searchScore" }
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    }
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  }
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])

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db.movies.aggregate([
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{
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  "$search": {
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    "phrase": {
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      "path": "title",
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      "query": ["the man", "the moon"]
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    }
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  }
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},
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{ $limit: 10 },
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{
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  $project: {
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    "_id": 0,
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    "title": 1,
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    score: { $meta: "searchScore" }
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  }
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}
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])

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{ "title" : "The Man in the Moon", "score" : 4.500046730041504 }
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{ "title" : "Shoot the Moon", "score" : 3.278003215789795 }
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{ "title" : "Kick the Moon", "score" : 3.278003215789795 }
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{ "title" : "The Man", "score" : 2.8860299587249756 }
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{ "title" : "The Moon and Sixpence", "score" : 2.8754563331604004 }
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{ "title" : "The Moon Is Blue", "score" : 2.8754563331604004 }
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{ "title" : "Racing with the Moon", "score" : 2.8754563331604004 }
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{ "title" : "Mountains of the Moon", "score" : 2.8754563331604004 }
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{ "title" : "Man on the Moon", "score" : 2.8754563331604004 }
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{ "title" : "Castaway on the Moon", "score" : 2.8754563331604004 }