Como Executar queries de Pesquisa do Atlas de Correspondência Parcial

No Atlas, vá Clusters para a página do seu projeto.

1. Se ainda não estiver exibido, selecione a organização que contém o projeto desejado no menu Organizations na barra de navegação.

2. Se ainda não estiver exibido, selecione o projeto desejado no menu Projects na barra de navegação.

3. Se a página Clusters ainda não estiver exibida, clique em Database na barra lateral.

Acesse a página do Atlas Search do seu cluster.

Você pode acessar a página Atlas Search na barra lateral, o Data Explorer ou a página de detalhes do cluster.

Vá para Search Tester.

Clique no botão Query à direita do índice para consultar.

Visualizar e editar a sintaxe da consulta.

Clique em Edit Query para visualizar uma amostra de sintaxe de consulta padrão no formato JSON .

Execute a seguinte query do Atlas Search utilizando o operador para o qual você criou o índice.

A query seguinte usa o operador para consultar o campo plot da collection sample_mflix.movies.

Copie e cole a seguinte consulta no Query Editor e, em seguida, clique no botão Search no Query Editor.

1
[
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "autocomplete": {
6
        "path": "plot",
7
        "query": "new purchase",
8
        "tokenOrder": "any",
9
        "fuzzy": {
10
          "maxEdits": 2,
11
          "prefixLength": 1,
12
          "maxExpansions": 256
13
        }
14
      },
15
      "highlight": {
16
          "path": "plot"
17
      }
18
    }
19
  }
20
]

SCORE: 3  _id:  "573a13a4f29313caabd112f0"
  A divorced woman and her diabetic daughter take refuge in their newly-purchased house's safe room, when three men break-in, searching for a missing fortune.
  Matching fields: plot
SCORE: 3  _id:  "573a13d1f29313caabd8e209"
  A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.
  Matching fields: plot
SCORE: 2  _id:  "573a13bef29313caabd5b62d"
  Set in the near future when artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has purchased. He must
  Matching fields: plot
SCORE: 2  _id:  "573a13b3f29313caabd3c91e"
  He is "purchased" by a wealthy television producer and taken to a desolate island where he must fight to the death against nine other condemned killers from all corners of the world, with freedom going to the sole survivor.
  Matching fields: plot
SCORE: 2  _id:  "573a1398f29313caabceb931"
  A country boy becomes the head of a gang through the purchase of some lucky roses from an old lady.
  Matching fields: plot, plot
SCORE: 1  _id:  "573a13a7f29313caabd1b5ab"
  An illegal Nigerian immigrant discovers the unpalatable side of London life.
  Matching fields: plot
SCORE: 1  _id:  "573a13a7f29313caabd1b5c0"
  A young dropout falls in love with a nightclub dancer...
  Matching fields: plot
SCORE: 1  _id:  "573a13a7f29313caabd1b62f"
  In 1990, to protect his fragile mother from a fatal shock after a long coma, a young man must keep her from learning that her beloved nation of East Germany as she knew it has disappeared.
  Matching fields: plot
SCORE: 1  _id:  "573a13a7f29313caabd1b6af"
  Gadget once again has to fight his arch nemesis, Claw.
  Matching fields: plot

1
[
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "phrase": {
6
        "path": "plot",
7
        "query": "new purpose",
8
        "slop": 5
9
      },
10
      "highlight": {
11
        "path": "plot"
12
      }
13
    }
14
  }
15
]

SCORE: 3.7209534645080566  _id:  "573a13b1f29313caabd37ae6"
  The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.
  Matching fields: plot
SCORE: 1.1507558822631836  _id:  "573a13bdf29313caabd58a26"
  But without a hero, he loses all purpose and must find new meaning to his life.
  Matching fields: plot
SCORE: 1.0041160583496094  _id:  "573a1396f29313caabce5197"
  An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy New Mexico cattle barons--his sole purpose being to bring down his old friend Billy the Kid.
  Matching fields: plot

1
[
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "regex": {
6
        "path": "plot",
7
        "query": "(.*)new(.*) pur(.*)"
8
      }
9
    }
10
  }
11
]

SCORE: 1  _id:  "573a1397f29313caabce77d9"
  fullplot: "After the Rebel base on the icy planet Hoth is taken over by the empir…"
  imdb: Object
  year: 1980
SCORE: 1  _id:  "573a1398f29313caabceb893"
  plot: "The new owner of the Cleveland Indians puts together a purposely horri…"
  genres: Array
  runtime: 107
SCORE: 1  _id:  "573a13b1f29313caabd37ae6"
  plot: "The true story of Richard Pimentel, a brilliant public speaker with a …"
  genres: Array
  runtime: 94
SCORE: 1  _id:  "573a13d1f29313caabd8e209"
  fullplot: "Theodore is a lonely man in the final stages of his divorce. When he's…"
  imdb: Object
  year: 2013
SCORE: 1  _id:  "573a13dcf29313caabdb107a"
  plot: "An adrenaline junkie walks away from a whirlwind romance and embraces …"
  genres: Array
  runtime: 146

1
[
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "wildcard": {
6
        "path": "plot",
7
        "query": "*new* pur*"
8
      }
9
    }
10
  }
11
]

SCORE: 1  _id:  "573a1397f29313caabce77d9"
  fullplot: "After the Rebel base on the icy planet Hoth is taken over by the empir…"
  imdb: Object
  year: 1980
SCORE: 1  _id:  "573a1398f29313caabceb893"
  plot: "The new owner of the Cleveland Indians puts together a purposely horri…"
  genres: Array
  runtime: 107
SCORE: 1  _id:  "573a13b1f29313caabd37ae6"
  plot: "The true story of Richard Pimentel, a brilliant public speaker with a …"
  genres: Array
  runtime: 94
SCORE: 1  _id:  "573a13d1f29313caabd8e209"
  fullplot: "Theodore is a lonely man in the final stages of his divorce. When he's…"
  imdb: Object
  year: 2013
SCORE: 1  _id:  "573a13dcf29313caabdb107a"
  plot: "An adrenaline junkie walks away from a whirlwind romance and embraces …"
  genres: Array
  runtime: 146

Expanda os resultados da query.

O Search Tester pode não exibir todos os campos nos documentos que ele retorna. Para exibir todos os campos, incluindo o campo que você especifica no caminho da consulta, expanda o documento nos resultados.

Conecte-se ao seu cluster em mongosh.

Abra o mongosh em uma janela do terminal e conecte ao seu cluster. Para obter instruções detalhadas sobre a conexão, consulte Conectar via mongosh.

Use o sample_mflix banco de dados do .

Execute o seguinte comando no prompt mongosh:

use sample_mflix

Execute a seguinte query do Atlas Search utilizando o operador para o qual você criou o índice.

A consulta seguinte usa o operador para consultar o campo plot da coleção sample_mflix.movies. A consulta inclui um:

• $limit estágio para limitar a saída a 5 resultados

• Estágio $project para excluir todos os campos, exceto title e plot

1
db.movies.aggregate([
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "autocomplete": {
6
        "path": "plot",
7
        "query": "new purchase",
8
        "tokenOrder": "any",
9
        "fuzzy": {
10
          "maxEdits": 2,
11
          "prefixLength": 1,
12
          "maxExpansions": 256
13
        }
14
      },
15
      "highlight": {
16
          "path": "plot"
17
      }
18
    }
19
  },
20
  {
21
    "$limit": 5
22
  },
23
  {
24
    "$project": {
25
      "_id": 0,
26
      "title": 1,
27
      "plot": 1,
28
      "highlights": { "$meta": "searchHighlights" }
29
    }
30
  }
31
])

[
  {
    plot: "A divorced woman and her diabetic daughter take refuge in their newly-purchased house's safe room, when three men break-in, searching for a missing fortune.",
    title: 'Panic Room',
    highlights: [
      {
        score: 4.364492893218994,
        path: 'plot',
        texts: [
          {
            value: 'A divorced woman and her diabetic daughter take refuge in their ',
            type: 'text'
          },
          { value: "newly-purchased house's safe", type: 'hit' },
          {
            value: ' room, when three men break-in, searching for a missing fortune.',
            type: 'text'
          }
        ]
      }
    ]
  },
  {
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
    title: 'Her',
    highlights: [
      {
        score: 4.198050022125244,
        path: 'plot',
        texts: [
          {
            value: 'A lonely writer develops an unlikely relationship with his ',
            type: 'text'
          },
          { value: 'newly purchased operating system', type: 'hit' },
          {
            value: " that's designed to meet his every ",
            type: 'text'
          },
          { value: 'need', type: 'hit' },
          { value: '.', type: 'text' }
        ]
      }
    ]
  },
  {
    plot: "Set in the near future when artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has purchased. He must therefore go on the run before said ticker is repossessed.",
    title: 'Repo Men',
    highlights: [
      {
        score: 2.6448397636413574,
        path: 'plot',
        texts: [
          { value: 'Set in the ', type: 'text' },
          { value: 'near future when', type: 'hit' },
          { value: ' artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has ', type: 'text' },
          { value: 'purchased. He must', type: 'hit' }
        ]
      }
    ]
  },
  {
    plot: 'A psychologically troubled novelty supplier is nudged towards a romance with an English woman, all the while being extorted by a phone-sex line run by a crooked mattress salesman, and purchasing stunning amounts of pudding.',
    title: 'Punch-Drunk Love',
    highlights: [
      {
        score: 1.2451990842819214,
        path: 'plot',
        texts: [
          { value: 'A psychologically troubled ', type: 'text' },
          { value: 'novelty supplier is', type: 'hit' },
          { value: ' ', type: 'text' },
          { value: 'nudged towards a', type: 'hit' },
          {
            value: ' romance with an English woman, all the while being extorted by a phone-sex line run by a crooked mattress salesman, and ',
            type: 'text'
          },
          { value: 'purchasing stunning amounts', type: 'hit' },
          { value: ' of pudding.', type: 'text' }
        ]
      }
    ]
  },
  {
    plot: 'Jack Conrad is awaiting the death penalty in a corrupt Central American prison. He is "purchased" by a wealthy television producer and taken to a desolate island where he must fight to the death against nine other condemned killers from all corners of the world, with freedom going to the sole survivor.',
    title: 'The Condemned',
    highlights: [
      {
        score: 2.94378924369812,
        path: 'plot',
        texts: [
          { value: 'He is "', type: 'text' },
          { value: 'purchased" by a', type: 'hit' },
          {
            value: ' wealthy television producer and taken to a desolate island where he must fight to the death against ',
            type: 'text'
          },
          { value: 'nine other condemned', type: 'hit' },
          {
            value: ' killers from all corners of the world, with freedom going to the sole survivor.',
            type: 'text'
          }
        ]
      }
    ]
  }
]

1
db.movies.aggregate([
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "phrase": {
6
        "path": "plot",
7
        "query": "new purpose",
8
        "slop": 5
9
      },
10
      "highlight": {
11
        "path": "plot"
12
      }
13
    }
14
  },
15
  {
16
    "$limit": 5
17
  },
18
  {
19
    "$project": {
20
      "_id": 0,
21
      "plot": 1,
22
      "title": 1,
23
      "highlights": { "$meta": "searchHighlights" }
24
    }
25
  }
26
])

[
  {
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
    title: 'Music Within',
    highlights: [
      {
        score: 1.9394469261169434,
        path: 'plot',
        texts: [
          { value: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a ', type: 'text' },
          { value: 'new', type: 'hit' },
          { value: ' ', type: 'text' },
          { value: 'purpose', type: 'hit' },
          { value: ' in his landmark efforts on the behalf of Americans with disabilities.', type: 'text' }
        ]
      }
    ]
  },
  {
    plot: 'The supervillain Megamind finally defeats his nemesis, the superhero Metro Man. But without a hero, he loses all purpose and must find new meaning to his life.',
    title: 'Megamind',
    highlights: [
      {
        score: 2.90376877784729,
        path: 'plot',
        texts: [
          { value: 'But without a hero, he loses all ', type: 'text' },
          { value: 'purpose', type: 'hit' },
          { value: ' and must find ', type: 'text' },
          { value: 'new', type: 'hit' },
          { value: ' meaning to his life.', type: 'text' }
        ]
      }
    ]
  },
  {
    plot: 'An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy New Mexico cattle barons--his sole purpose being to bring down his old friend Billy the Kid.',
    title: 'Pat Garrett & Billy the Kid',
    highlights: [
      {
        score: 2.115748405456543,
        path: 'plot',
        texts: [
          { value: 'An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy ', type: 'text' },
          { value: 'New', type: 'hit' },
          { value: ' Mexico cattle barons--his sole ', type: 'text' },
          { value: 'purpose', type: 'hit' },
          { value: ' being to bring down his old friend Billy the Kid.', type: 'text' }
        ]
      }
    ]
  }
]

1
db.movies.aggregate([
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "regex": {
6
        "path": "plot",
7
        "query": "(.*)new(.*) pur(.*)"
8
      }
9
    }
10
  },
11
  {
12
    $limit: 5
13
  },
14
  {
15
    $project: {
16
      "_id": 0,
17
      "plot": 1,
18
      "title": 1
19
    }
20
  }
21
])

[
  {
    plot: 'After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.',
    title: 'Star Wars: Episode V - The Empire Strikes Back'
  },
  {
    plot: "The new owner of the Cleveland Indians puts together a purposely horrible team so they'll lose and she can move the team. But when the plot is uncovered, they start winning just to spite her.",
    title: 'Major League'
  },
  {
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
    title: 'Music Within'
  },
  {
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
    title: 'Her'
  },
  {
    plot: 'An adrenaline junkie walks away from a whirlwind romance and embraces a new life as a thief, though he soon finds himself pursued by veteran police officer and engaged in a turf war with a local gangster.',
    title: 'Kick'
  }
]

1
db.movies.aggregate([
2
  {
3
    "$search": {
4
      "index": "partial-match-tutorial",
5
      "wildcard": {
6
        "path": "plot",
7
        "query": "*new* pur*"
8
      }
9
    }
10
  },
11
  {
12
    "$limit": 5
13
  },
14
  {
15
    "$project": {
16
      "_id": 0,
17
      "plot": 1
18
    }
19
  }
20
])

[
  {
    plot: 'After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.',
    title: 'Star Wars: Episode V - The Empire Strikes Back'
  },
  {
    plot: "The new owner of the Cleveland Indians puts together a purposely horrible team so they'll lose and she can move the team. But when the plot is uncovered, they start winning just to spite her.",
    title: 'Major League'
  },
  {
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
    title: 'Music Within'
  },
  {
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
    title: 'Her'
  },
  {
    plot: 'An adrenaline junkie walks away from a whirlwind romance and embraces a new life as a thief, though he soon finds himself pursued by veteran police officer and engaged in a turf war with a local gangster.',
    title: 'Kick'
  }
]

Conecte-se ao seu cluster no MongoDB Compass.

Abra o MongoDB Compass e conecte-se ao cluster. Para obter instruções detalhadas sobre a conexão, consulte Conectar via Compass.

Utilize a movies coleção no sample_mflix banco de dados .

Na tela Database, clique no banco de dados sample_mflix e, em seguida, clique na coleção movies.

Execute a seguinte query do Atlas Search utilizando o operador para o qual você criou o índice.

A consulta seguinte usa o operador para consultar o campo plot da coleção sample_mflix.movies. A consulta inclui um:

• $limit estágio para limitar a saída a 5 resultados

• Estágio $project para excluir todos os campos, exceto title e plot

Para executar esta consulta no MongoDB Compass:

1. Clique na aba Aggregations.

2. Clique em Select... e, em seguida, configure cada um dos seguintes estágios do pipeline, selecionando o estágio no menu suspenso e adicionando a consulta para esse estágio. Clique em Add Stage para adicionar estágios adicionais.

   autocompletar

   frase

   regex

   curinga

   A consulta permite o seguinte para corresponder a string de consulta new purchase a uma palavra no campo:

   • Permite que as palavras new e purchase apareçam em qualquer lugar no campo plot.

   • Permite que a variação de dois caracteres na string da query corresponda a query a uma palavra no campo, mas não permite que o primeiro caractere da string de consulta seja alterado.

   • Permite considerar até duzentos e cinquenta e seis termos semelhantes.

   estágio do pipeline	Query
   $search	{ "index": "partial-match-tutorial", "autocomplete": { "path": "plot", "query": "new purchase", "tokenOrder": "any", "fuzzy": { "maxEdits": 2, "prefixLength": 1, "maxExpansions": 256 } }, "highlight": { "path": "plot" } }
   $limit	5
   $project	{ "_id": 0, "title": 1, "plot": 1, "highlights": { "$meta": "searchHighlights" } }

   A query especifica a string de query new purpose com uma distância posicional de até 5 entre new e purpose.

   estágio do pipeline	Query
   $search	{ "index": "partial-match-tutorial", "phrase": { "path": "plot", "query": "new purpose", "slop": 5 }, "highlight": { "path": "plot" } }
   $limit	5
   $project	{ "_id": 0, "title": 1, "plot": 1, "highlights": { "$meta": "searchHighlights" } }

   A query usa a expressão regular (.*) para corresponder a qualquer número de caracteres com a string de query parcial.

   estágio do pipeline	Query
   $search	{ "index": "partial-match-tutorial", "regex": { "path": "plot", "query": "(.*)new(.*) pur(.*)" } }
   $limit	5
   $project	{ "_id": 0, "title": 1, "plot": 1 }

   A query usa * na string de query para corresponder 0 ou mais caracteres antes e depois das palavras especificadas na string de query parcial.

   estágio do pipeline	Query
   $search	{ "index": "partial-match-tutorial", "wildcard": { "path": "plot", "query": "*new* pur*" } }
   $limit	5
   $project	{ "_id": 0, "title": 1, "plot": 1 }

Se você habilitou o Auto Preview, o MongoDB Compass exibe os seguintes documentos ao lado da etapa de pipeline do $project:

1
[
2
  {
3
    plot: "A divorced woman and her diabetic daughter take refuge in their newly-purchased house's safe room, when three men break-in, searching for a missing fortune.",
4
    title: 'Panic Room',
5
    highlights: [
6
      {
7
        score: 4.364492893218994,
8
        path: 'plot',
9
        texts: [
10
          {
11
            value: 'A divorced woman and her diabetic daughter take refuge in their ',
12
            type: 'text'
13
          },
14
          { value: "newly-purchased house's safe", type: 'hit' },
15
          {
16
            value: ' room, when three men break-in, searching for a missing fortune.',
17
            type: 'text'
18
          }
19
        ]
20
      }
21
    ]
22
  },
23
  {
24
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
25
    title: 'Her',
26
    highlights: [
27
      {
28
        score: 4.198050022125244,
29
        path: 'plot',
30
        texts: [
31
          {
32
            value: 'A lonely writer develops an unlikely relationship with his ',
33
            type: 'text'
34
          },
35
          { value: 'newly purchased operating system', type: 'hit' },
36
          {
37
            value: " that's designed to meet his every ",
38
            type: 'text'
39
          },
40
          { value: 'need', type: 'hit' },
41
          { value: '.', type: 'text' }
42
        ]
43
      }
44
    ]
45
  },
46
  {
47
    plot: "Set in the near future when artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has purchased. He must therefore go on the run before said ticker is repossessed.",
48
    title: 'Repo Men',
49
    highlights: [
50
      {
51
        score: 2.6448397636413574,
52
        path: 'plot',
53
        texts: [
54
          { value: 'Set in the ', type: 'text' },
55
          { value: 'near future when', type: 'hit' },
56
          { value: ' artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has ', type: 'text' },
57
          { value: 'purchased. He must', type: 'hit' }
58
        ]
59
      }
60
    ]
61
  },
62
  {
63
    plot: 'A psychologically troubled novelty supplier is nudged towards a romance with an English woman, all the while being extorted by a phone-sex line run by a crooked mattress salesman, and purchasing stunning amounts of pudding.',
64
    title: 'Punch-Drunk Love',
65
    highlights: [
66
      {
67
        score: 1.2451990842819214,
68
        path: 'plot',
69
        texts: [
70
          { value: 'A psychologically troubled ', type: 'text' },
71
          { value: 'novelty supplier is', type: 'hit' },
72
          { value: ' ', type: 'text' },
73
          { value: 'nudged towards a', type: 'hit' },
74
          {
75
            value: ' romance with an English woman, all the while being extorted by a phone-sex line run by a crooked mattress salesman, and ',
76
            type: 'text'
77
          },
78
          { value: 'purchasing stunning amounts', type: 'hit' },
79
          { value: ' of pudding.', type: 'text' }
80
        ]
81
      }
82
    ]
83
  },
84
  {
85
    plot: 'Jack Conrad is awaiting the death penalty in a corrupt Central American prison. He is "purchased" by a wealthy television producer and taken to a desolate island where he must fight to the death against nine other condemned killers from all corners of the world, with freedom going to the sole survivor.',
86
    title: 'The Condemned',
87
    highlights: [
88
      {
89
        score: 2.94378924369812,
90
        path: 'plot',
91
        texts: [
92
          { value: 'He is "', type: 'text' },
93
          { value: 'purchased" by a', type: 'hit' },
94
          {
95
            value: ' wealthy television producer and taken to a desolate island where he must fight to the death against ',
96
            type: 'text'
97
          },
98
          { value: 'nine other condemned', type: 'hit' },
99
          {
100
            value: ' killers from all corners of the world, with freedom going to the sole survivor.',
101
            type: 'text'
102
          }
103
        ]
104
      }
105
    ]
106
  }
107
]

1
[
2
  {
3
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
4
    title: 'Music Within',
5
    highlights: [
6
      {
7
        score: 1.9394469261169434,
8
        path: 'plot',
9
        texts: [
10
          { value: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a ', type: 'text' },
11
          { value: 'new', type: 'hit' },
12
          { value: ' ', type: 'text' },
13
          { value: 'purpose', type: 'hit' },
14
          { value: ' in his landmark efforts on the behalf of Americans with disabilities.', type: 'text' }
15
        ]
16
      }
17
    ]
18
  },
19
  {
20
    plot: 'The supervillain Megamind finally defeats his nemesis, the superhero Metro Man. But without a hero, he loses all purpose and must find new meaning to his life.',
21
    title: 'Megamind',
22
    highlights: [
23
      {
24
        score: 2.90376877784729,
25
        path: 'plot',
26
        texts: [
27
          { value: 'But without a hero, he loses all ', type: 'text' },
28
          { value: 'purpose', type: 'hit' },
29
          { value: ' and must find ', type: 'text' },
30
          { value: 'new', type: 'hit' },
31
          { value: ' meaning to his life.', type: 'text' }
32
        ]
33
      }
34
    ]
35
  },
36
  {
37
    plot: 'An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy New Mexico cattle barons--his sole purpose being to bring down his old friend Billy the Kid.',
38
    title: 'Pat Garrett & Billy the Kid',
39
    highlights: [
40
      {
41
        score: 2.115748405456543,
42
        path: 'plot',
43
        texts: [
44
          { value: 'An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy ', type: 'text' },
45
          { value: 'New', type: 'hit' },
46
          { value: ' Mexico cattle barons--his sole ', type: 'text' },
47
          { value: 'purpose', type: 'hit' },
48
          { value: ' being to bring down his old friend Billy the Kid.', type: 'text' }
49
        ]
50
      }
51
    ]
52
  }
53
]

1
[
2
  {
3
    plot: 'After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.',
4
    title: 'Star Wars: Episode V - The Empire Strikes Back'
5
  },
6
  {
7
    plot: "The new owner of the Cleveland Indians puts together a purposely horrible team so they'll lose and she can move the team. But when the plot is uncovered, they start winning just to spite her.",
8
    title: 'Major League'
9
  },
10
  {
11
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
12
    title: 'Music Within'
13
  },
14
  {
15
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
16
    title: 'Her'
17
  },
18
  {
19
    plot: 'An adrenaline junkie walks away from a whirlwind romance and embraces a new life as a thief, though he soon finds himself pursued by veteran police officer and engaged in a turf war with a local gangster.',
20
    title: 'Kick'
21
  }
22
]

1
[
2
  {
3
    plot: 'After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.',
4
    title: 'Star Wars: Episode V - The Empire Strikes Back'
5
  },
6
  {
7
    plot: "The new owner of the Cleveland Indians puts together a purposely horrible team so they'll lose and she can move the team. But when the plot is uncovered, they start winning just to spite her.",
8
    title: 'Major League'
9
  },
10
  {
11
    plot: 'The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a new purpose in his landmark efforts on the behalf of Americans with disabilities.',
12
    title: 'Music Within'
13
  },
14
  {
15
    plot: "A lonely writer develops an unlikely relationship with his newly purchased operating system that's designed to meet his every need.",
16
    title: 'Her'
17
  },
18
  {
19
    plot: 'An adrenaline junkie walks away from a whirlwind romance and embraces a new life as a thief, though he soon finds himself pursued by veteran police officer and engaged in a turf war with a local gangster.',
20
    title: 'Kick'
21
  }
22
]

Configure e inicialize o projeto .NET/C# para a query.

1. Crie um novo diretório chamado partial-match-example e inicialize seu projeto com o comando dotnet new .

   mkdir partial-match-example
   cd partial-match-example
   dotnet new console

2. Adicione o driver .NET/C# ao seu projeto como uma dependência.

   dotnet add package MongoDB.Driver

Crie a query no arquivo Program.cs .

1. Substitua o conteúdo do arquivo Program.cs pelo seguinte código.

   O exemplo de código executa as seguintes tarefas:

   • Importa pacotes e dependências do mongodb .

   • Estabelece uma ligação ao seu cluster Atlas.

   • Executa uma query que usa:

     • $search estágio para procurar um termo

     • $limit estágio para limitar a saída a 5 resultados

     • $project estágio para excluir todos os campos, exceto title

       e a plot

   • Itera sobre o cursor para imprimir os documentos que correspondem à consulta.

   autocompletar

   frase

   regex

   curinga

   A consulta permite o seguinte para corresponder a string de consulta new purchase a uma palavra no campo:

   • Permite que as palavras new e purchase apareçam em qualquer lugar no campo plot.

   • Permite que a variação de dois caracteres na string da query corresponda a query a uma palavra no campo, mas não permite que o primeiro caractere da string de consulta seja alterado.

   • Permite considerar até duzentos e cinquenta e seis termos semelhantes.

   1
   using MongoDB.Bson;
   2
   using MongoDB.Bson.Serialization.Attributes;
   3
   using MongoDB.Bson.Serialization.Conventions;
   4
   using MongoDB.Driver;
   5
   using MongoDB.Driver.Search;
   6
   7
   public class PartialAutocomplete 
   8
   {
   9
       private const string MongoConnectionString = "<connection-string>";
   10
   11
       public static void Main(string[] args) {
   12
           // allow automapping of the camelCase database fields to our MovieDocument
   13
           var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
   14
           ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true);
   15
   16
           // connect to your Atlas cluster
   17
           var mongoClient = new MongoClient(MongoConnectionString);
   18
           var mflixDatabase = mongoClient.GetDatabase("sample_mflix");
   19
           var moviesCollection = mflixDatabase.GetCollection<MovieDocument>("movies");
   20
   21
           // define fuzzy options
   22
           SearchFuzzyOptions fuzzyOptions = new SearchFuzzyOptions()
   23
               {
   24
                   MaxEdits = 2,
   25
                   PrefixLength = 1,
   26
                   MaxExpansions = 256
   27
               };
   28
   29
           // define and run pipeline
   30
           var results = moviesCollection.Aggregate()
   31
               .Search(Builders<MovieDocument>.Search.Autocomplete(movie => movie.Plot, "new purchase", SearchAutocompleteTokenOrder.Any, fuzzy: fuzzyOptions), new SearchHighlightOptions<MovieDocument>(movie => movie.Plot),
   32
                   indexName: "partial-match-tutorial")
   33
               .Project<MovieDocument>(Builders<MovieDocument>.Projection
   34
                   .Include(movie => movie.Plot)
   35
                   .Include(movie => movie.Title)
   36
                   .Exclude(movie => movie.Id)
   37
                   .MetaSearchHighlights("highlights"))
   38
               .Limit(5)
   39
               .ToList();
   40
   41
           // print results
   42
           foreach (var movie in results) {
   43
               Console.WriteLine(movie.ToJson());
   44
           }
   45
       }
   46
   }
   47
   48
   [BsonIgnoreExtraElements]
   49
   public class MovieDocument {
   50
       [BsonIgnoreIfDefault]
   51
       public ObjectId Id { get; set; }
   52
       public string Plot { get; set; }
   53
       public string Title { get; set; }
   54
       [BsonElement("highlights")]
   55
       public List<SearchHighlight> Highlights { get; set; }
   56
   }

   A query especifica a string de query new purpose com uma distância posicional de até 5 entre new e purpose.

   1
   using MongoDB.Bson;
   2
   using MongoDB.Bson.Serialization.Attributes;
   3
   using MongoDB.Bson.Serialization.Conventions;
   4
   using MongoDB.Driver;
   5
   using MongoDB.Driver.Search;
   6
   7
   public class PartialPhrase 
   8
   {
   9
       private const string MongoConnectionString = "<connection-string>";
   10
   11
       public static void Main(string[] args) {
   12
           // allow automapping of the camelCase database fields to our MovieDocument
   13
           var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
   14
           ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true);
   15
   16
           // connect to your Atlas cluster
   17
           var mongoClient = new MongoClient(MongoConnectionString);
   18
           var mflixDatabase = mongoClient.GetDatabase("sample_mflix");
   19
           var moviesCollection = mflixDatabase.GetCollection<MovieDocument>("movies");
   20
   21
           // define and run pipeline
   22
           var results = moviesCollection.Aggregate()
   23
               .Search(Builders<MovieDocument>.Search.Phrase(movie => movie.Plot, "new purpose", 5), new SearchHighlightOptions<MovieDocument>(movie => movie.Plot),
   24
                   indexName: "partial-match-tutorial")
   25
               .Project<MovieDocument>(Builders<MovieDocument>.Projection
   26
                   .Include(movie => movie.Plot)
   27
                   .Include(movie => movie.Title)
   28
                   .Exclude(movie => movie.Id)
   29
                   .MetaSearchHighlights("highlights"))
   30
               .Limit(5)
   31
               .ToList();
   32
   33
           // print results
   34
           foreach (var movie in results) {
   35
               Console.WriteLine(movie.ToJson());
   36
           }
   37
       }
   38
   }
   39
   40
   [BsonIgnoreExtraElements]
   41
   public class MovieDocument {
   42
       [BsonIgnoreIfDefault]
   43
       public ObjectId Id { get; set; }
   44
       public string Plot { get; set; }
   45
       public string Title { get; set; }
   46
       [BsonElement("highlights")]
   47
       public List<SearchHighlight> Highlights { get; set; }
   48
   }

   A query usa a expressão regular (.*) para corresponder a qualquer número de caracteres com a string de query parcial.

   1
   using MongoDB.Bson;
   2
   using MongoDB.Bson.Serialization.Attributes;
   3
   using MongoDB.Bson.Serialization.Conventions;
   4
   using MongoDB.Driver;
   5
   using MongoDB.Driver.Search;
   6
   7
   public class PartialRegex 
   8
   {
   9
       private const string MongoConnectionString = "<connection-string>";
   10
   11
       public static void Main(string[] args) {
   12
           // allow automapping of the camelCase database fields to our MovieDocument
   13
           var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
   14
           ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true);
   15
   16
           // connect to your Atlas cluster
   17
           var mongoClient = new MongoClient(MongoConnectionString);
   18
           var mflixDatabase = mongoClient.GetDatabase("sample_mflix");
   19
           var moviesCollection = mflixDatabase.GetCollection<MovieDocument>("movies");
   20
   21
           // define and run pipeline
   22
           var results = moviesCollection.Aggregate()
   23
               .Search(Builders<MovieDocument>.Search.Regex(movie => movie.Plot, "(.*)new(.*) pur(.*)"),
   24
                   indexName: "partial-match-tutorial")
   25
               .Project<MovieDocument>(Builders<MovieDocument>.Projection
   26
                   .Include(movie => movie.Plot)
   27
                   .Include(movie => movie.Title)
   28
                   .Exclude(movie => movie.Id))
   29
               .Limit(5)
   30
               .ToList();
   31
   32
           // print results
   33
           foreach (var movie in results) {
   34
               Console.WriteLine(movie.ToJson());
   35
           }
   36
       }
   37
   }
   38
   39
   [BsonIgnoreExtraElements]
   40
   public class MovieDocument {
   41
       [BsonIgnoreIfDefault]
   42
       public ObjectId Id { get; set; }
   43
       public string Plot { get; set; }
   44
       public string Title { get; set; }
   45
   }

   A query usa * na string de query para corresponder 0 ou mais caracteres antes e depois das palavras especificadas na string de query parcial.

   1
   using MongoDB.Bson;
   2
   using MongoDB.Bson.Serialization.Attributes;
   3
   using MongoDB.Bson.Serialization.Conventions;
   4
   using MongoDB.Driver;
   5
   using MongoDB.Driver.Search;
   6
   7
   public class PartialWildcard 
   8
   {
   9
       private const string MongoConnectionString = "<connection-string>";
   10
   11
       public static void Main(string[] args) {
   12
           // allow automapping of the camelCase database fields to our MovieDocument
   13
           var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
   14
           ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true);
   15
   16
           // connect to your Atlas cluster
   17
           var mongoClient = new MongoClient(MongoConnectionString);
   18
           var mflixDatabase = mongoClient.GetDatabase("sample_mflix");
   19
           var moviesCollection = mflixDatabase.GetCollection<MovieDocument>("movies");
   20
   21
           // define and run pipeline
   22
           var results = moviesCollection.Aggregate()
   23
               .Search(Builders<MovieDocument>.Search.Wildcard(movie => movie.Plot, "*new* pur*"),
   24
                   indexName: "partial-match-tutorial")
   25
               .Project<MovieDocument>(Builders<MovieDocument>.Projection
   26
                   .Include(movie => movie.Plot)
   27
                   .Include(movie => movie.Title)
   28
                   .Exclude(movie => movie.Id))
   29
               .Limit(5)
   30
               .ToList();
   31
   32
           // print results
   33
           foreach (var movie in results) {
   34
               Console.WriteLine(movie.ToJson());
   35
           }
   36
       }
   37
   }
   38
   39
   [BsonIgnoreExtraElements]
   40
   public class MovieDocument {
   41
       [BsonIgnoreIfDefault]
   42
       public ObjectId Id { get; set; }
   43
       public string Plot { get; set; }
   44
       public string Title { get; set; }
   45
   }

2. Antes de executar o exemplo, substitua <connection-string> por sua cadeia de conexão do Atlas. Certifique-se de que sua cadeia de conexão inclui as credenciais do usuário do banco de dados. Para saber mais, consulte Conectar via Drivers.

Compile e execute o Program.cs arquivo .

dotnet run partial-match-example.csproj

{
  "plot" : "A divorced woman and her diabetic daughter take refuge in
  their newly-purchased house's safe room, when three men break-in,
  searching for a missing fortune.",
  "title" : "Panic Room",
  "highlights" : [{
      "path" : "plot",
      "score" : 4.3644928932189941,
      "texts" : [
          { "type" : "Text", "value" : "A divorced woman and her diabetic daughter take refuge in their " },
          { "type" : "Hit", "value" : "newly-purchased house's safe" },
          { "type" : "Text", "value" : " room, when three men break-in, searching for a missing fortune." }]
  }]
}
{
  "plot" : "A lonely writer develops an unlikely relationship with his
  newly purchased operating system that's designed to meet his every
  need.",
  "title" : "Her",
  "highlights" : [{
      "path" : "plot",
      "score" : 4.1980500221252441,
      "texts" : [
          { "type" : "Text", "value" : "A lonely writer develops an unlikely relationship with his " },
          { "type" : "Hit", "value" : "newly purchased operating system" },
          { "type" : "Text", "value" : " that's designed to meet his every " },
          { "type" : "Hit", "value" : "need" },
          { "type" : "Text", "value" : "." }]
  }]
}
{
  "plot" : "Set in the near future when artificial organs can be
  bought on credit, it revolves around a man who struggles to make the
  payments on a heart he has purchased. He must therefore go on the
  run before said ticker is repossessed.",
  "title" : "Repo Men",
  "highlights" : [{
      "path" : "plot",
      "score" : 2.6448397636413574,
      "texts" : [
          { "type" : "Text", "value" : "Set in the " },
          { "type" : "Hit", "value" : "near future when" },
          { "type" : "Text", "value" : " artificial organs can be bought on credit, it revolves around a man who struggles to make the payments on a heart he has " },
          { "type" : "Hit", "value" : "purchased. He must" }]
  }]
}
{
  "plot" : "A psychologically troubled novelty supplier is nudged
  towards a romance with an English woman, all the while being
  extorted by a phone-sex line run by a crooked mattress salesman, and
  purchasing stunning amounts of pudding.",
  "title" : "Punch-Drunk Love",
  "highlights" : [{
      "path" : "plot",
      "score" : 1.2451990842819214,
      "texts" : [
          { "type" : "Text", "value" : "A psychologically troubled " },
          { "type" : "Hit", "value" : "novelty supplier is" },
          { "type" : "Text", "value" : " " },
          { "type" : "Hit", "value" : "nudged towards a" },
          { "type" : "Text", "value" : " romance with an English woman, all the while being extorted by a phone-sex line run by a crooked mattress salesman, and " },
          { "type" : "Hit", "value" : "purchasing stunning amounts" },
          { "type" : "Text", "value" : " of pudding." }]
  }]
}
{
  "plot" : "Jack Conrad is awaiting the death penalty in a corrupt
  Central American prison. He is \"purchased\" by a wealthy television
  producer and taken to a desolate island where he must fight to the
  death against nine other condemned killers from all corners of the
  world, with freedom going to the sole survivor.",
  "title" : "The Condemned",
  "highlights" : [{
      "path" : "plot",
      "score" : 2.9437892436981201,
      "texts" : [
          { "type" : "Text", "value" : "He is \"" },
          { "type" : "Hit", "value" : "purchased\" by a" },
          { "type" : "Text", "value" : " wealthy television producer and taken to a desolate island where he must fight to the death against " },
          { "type" : "Hit", "value" : "nine other condemned" },
          { "type" : "Text", "value" : " killers from all corners of the world, with freedom going to the sole survivor." }]
  }]
}

dotnet run partial-match-example.csproj

{
  "plot" : "The true story of Richard Pimentel, a brilliant public
  speaker with a troubled past, who returns from Vietnam severely
  hearing -impaired and finds a new purpose in his landmark efforts on
  the behalf of Americans with disabilities.",
  "title" : "Music Within",
  "highlights" : [{
      "path" : "plot",
      "score" : 1.9394469261169434,
      "texts" : [
          { "type" : "Text", "value" : "The true story of Richard Pimentel, a brilliant public speaker with a troubled past, who returns from Vietnam severely hearing -impaired and finds a " },
          { "type" : "Hit", "value" : "new" },
          { "type" : "Text", "value" : " " },
          { "type" : "Hit", "value" : "purpose" },
          { "type" : "Text", "value" : " in his landmark efforts on the behalf of Americans with disabilities." }]
  }]
}
{
  "plot" : "The supervillain Megamind finally defeats his nemesis, the
  superhero Metro Man. But without a hero, he loses all purpose and
  must find new meaning to his life.",
  "title" : "Megamind",
  "highlights" : [{
      "path" : "plot",
      "score" : 2.90376877784729,
      "texts" : [
          { "type" : "Text", "value" : "But without a hero, he loses all " },
          { "type" : "Hit", "value" : "purpose" },
          { "type" : "Text", "value" : " and must find " },
          { "type" : "Hit", "value" : "new" },
          { "type" : "Text", "value" : " meaning to his life." }]
  }]
}
{
  "plot" : "An aging Pat Garrett is hired as a lawman on behalf of a
  group of wealthy New Mexico cattle barons--his sole purpose being to
  bring down his old friend Billy the Kid.",
  "title" : "Pat Garrett & Billy the Kid",
  "highlights" : [{
      "path" : "plot",
      "score" : 2.115748405456543,
      "texts" : [
          { "type" : "Text", "value" : "An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy " },
          { "type" : "Hit", "value" : "New" },
          { "type" : "Text", "value" : " Mexico cattle barons--his sole " },
          { "type" : "Hit", "value" : "purpose" },
          { "type" : "Text", "value" : " being to bring down his old friend Billy the Kid." }]
  }]
}

dotnet run partial-match-example.csproj

{
  "plot" : "After the rebels have been brutally overpowered by the
  Empire on their newly established base, Luke Skywalker takes
  advanced Jedi training with Master Yoda, while his friends are
  pursued by Darth Vader as part of his plan to capture Luke.",
  "title" : "Star Wars: Episode V - The Empire Strikes Back"
}
{
  "plot" : "The new owner of the Cleveland Indians puts together a
  purposely horrible team so they'll lose and she can move the team.
  But when the plot is uncovered, they start winning just to spite
  her.",
  "title" : "Major League"
}
{
  "plot" : "The true story of Richard Pimentel, a brilliant public
  speaker with a troubled past, who returns from Vietnam severely
  hearing -impaired and finds a new purpose in his landmark efforts on
  the behalf of Americans with disabilities.",
  "title" : "Music Within"
}
{
  "plot" : "A lonely writer develops an unlikely relationship with his
  newly purchased operating system that's designed to meet his every
  need.",
  "title" : "Her"
}
{
  "plot" : "An adrenaline junkie walks away from a whirlwind romance
  and embraces a new life as a thief, though he soon finds himself
  pursued by veteran police officer and engaged in a turf war with a
  local gangster.",
  "title" : "Kick"
}

dotnet run partial-match-example.csproj

{
  "plot" : "After the rebels have been brutally overpowered by the
  Empire on their newly established base, Luke Skywalker takes
  advanced Jedi training with Master Yoda, while his friends are
  pursued by Darth Vader as part of his plan to capture Luke.",
  "title" : "Star Wars: Episode V - The Empire Strikes Back"
}
{
  "plot" : "The new owner of the Cleveland Indians puts together a
  purposely horrible team so they'll lose and she can move the team.
  But when the plot is uncovered, they start winning just to spite
  her.",
  "title" : "Major League"
}
{
  "plot" : "The true story of Richard Pimentel, a brilliant public
  speaker with a troubled past, who returns from Vietnam severely
  hearing -impaired and finds a new purpose in his landmark efforts on
  the behalf of Americans with disabilities.",
  "title" : "Music Within"
}
{
  "plot" : "A lonely writer develops an unlikely relationship with his
  newly purchased operating system that's designed to meet his every
  need.",
  "title" : "Her"
}
{
  "plot" : "An adrenaline junkie walks away from a whirlwind romance
  and embraces a new life as a thief, though he soon finds himself
  pursued by veteran police officer and engaged in a turf war with a
  local gangster.",
  "title" : "Kick"
}

Crie um arquivo chamado partial-match-query.go

Copie e cole o exemplo de código do operador para o qual você criou o índice no partial-match-query.go arquivo .

A consulta seguinte usa o operador para consultar o campo plot da coleção sample_mflix.movies. A consulta inclui um:

• $limit estágio para limitar a saída a 5 resultados

• Estágio $project para excluir todos os campos, exceto title e plot

1
package main
2
3
import (
4
	"context"
5
	"fmt"
6
	"time"
7
8
	"go.mongodb.org/mongo-driver/bson"
9
	"go.mongodb.org/mongo-driver/mongo"
10
	"go.mongodb.org/mongo-driver/mongo/options"
11
)
12
13
// define structure of movies collection
14
type MovieCollection struct {
15
	title string `bson:"Title,omitempty"`
16
	plot  string `bson:"Plot,omitempty"`
17
}
18
19
func main() {
20
	var err error
21
	// connect to the Atlas cluster
22
	ctx := context.Background()
23
	client, err := mongo.Connect(ctx, options.Client().ApplyURI("<connection-string>"))
24
	if err != nil {
25
		panic(err)
26
	}
27
	defer client.Disconnect(ctx)
28
	// set namespace
29
	collection := client.Database("sample_mflix").Collection("movies")
30
	// define pipeline
31
	searchStage := bson.D{{"$search", bson.M{
32
		"index": "partial-match-tutorial",
33
		"autocomplete": bson.M{
34
			"path": "plot", "query": "new purchase", "tokenOrder": "any", "fuzzy": bson.M{
35
				"maxEdits": 2, "prefixLength": 1, "maxExpansions": 256},
36
		},
37
		"highlight": bson.D{
38
			{"path", "plot"},
39
		},
40
	}}}
41
	limitStage := bson.D{{"$limit", 5}}
42
	projectStage := bson.D{{"$project", bson.D{{"title", 1}, {"plot", 1}, {"_id", 0}, {"highlights", bson.D{{"$meta", "searchHighlights"}}}}}}
43
	// specify the amount of time the operation can run on the server
44
	opts := options.Aggregate().SetMaxTime(5 * time.Second)
45
	// run pipeline
46
	cursor, err := collection.Aggregate(ctx, mongo.Pipeline{searchStage, limitStage, projectStage}, opts)
47
	if err != nil {
48
		panic(err)
49
	}
50
	// print results
51
	var results []bson.D
52
	if err = cursor.All(context.TODO(), &results); err != nil {
53
		panic(err)
54
	}
55
	for _, result := range results {
56
		fmt.Println(result)
57
	}
58
}

1
package main
2
3
import (
4
	"context"
5
	"fmt"
6
	"time"
7
8
	"go.mongodb.org/mongo-driver/bson"
9
	"go.mongodb.org/mongo-driver/mongo"
10
	"go.mongodb.org/mongo-driver/mongo/options"
11
)
12
13
// define structure of movies collection
14
type MovieCollection struct {
15
	title string `bson:"Title,omitempty"`
16
	plot  string `bson:"Plot,omitempty"`
17
}
18
19
func main() {
20
	var err error
21
	// connect to the Atlas cluster
22
	ctx := context.Background()
23
	client, err := mongo.Connect(ctx, options.Client().ApplyURI("<connection-string>"))
24
	if err != nil {
25
		panic(err)
26
	}
27
	defer client.Disconnect(ctx)
28
	// set namespace
29
	collection := client.Database("sample_mflix").Collection("movies")
30
	// define pipeline
31
	searchStage := bson.D{{"$search", bson.M{
32
		"index":     "partial-match-tutorial",
33
		"phrase":    bson.D{{"path", "plot"}, {"query", "new purpose"}, {"slop", 5}},
34
		"highlight": bson.D{{"path", "plot"}},
35
	}}}
36
	limitStage := bson.D{{"$limit", 5}}
37
	projectStage := bson.D{{"$project", bson.D{{"title", 1}, {"plot", 1}, {"_id", 0}, {"highlights", bson.D{{"$meta", "searchHighlights"}}}}}}
38
	// specify the amount of time the operation can run on the server
39
	opts := options.Aggregate().SetMaxTime(5 * time.Second)
40
	// run pipeline
41
	cursor, err := collection.Aggregate(ctx, mongo.Pipeline{searchStage, limitStage, projectStage}, opts)
42
	if err != nil {
43
		panic(err)
44
	}
45
	// print results
46
	var results []bson.D
47
	if err = cursor.All(context.TODO(), &results); err != nil {
48
		panic(err)
49
	}
50
	for _, result := range results {
51
		fmt.Println(result)
52
	}
53
}

1
package main
2
3
import (
4
	"context"
5
	"fmt"
6
	"time"
7
8
	"go.mongodb.org/mongo-driver/bson"
9
	"go.mongodb.org/mongo-driver/mongo"
10
	"go.mongodb.org/mongo-driver/mongo/options"
11
)
12
13
// define structure of movies collection
14
type MovieCollection struct {
15
	title string `bson:"Title,omitempty"`
16
	plot  string `bson:"Plot,omitempty"`
17
}
18
19
func main() {
20
	var err error
21
	// connect to the Atlas cluster
22
	ctx := context.Background()
23
	client, err := mongo.Connect(ctx, options.Client().ApplyURI("<connection-string>"))
24
	if err != nil {
25
		panic(err)
26
	}
27
	defer client.Disconnect(ctx)
28
	// set namespace
29
	collection := client.Database("sample_mflix").Collection("movies")
30
	// define pipeline
31
	searchStage := bson.D{{"$search", bson.M{
32
		"index": "partial-match-tutorial",
33
		"regex": bson.D{{"path", "plot"}, {"query", "(.*)new(.*) pur(.*)"}},
34
	}}}
35
	limitStage := bson.D{{"$limit", 5}}
36
	projectStage := bson.D{{"$project", bson.D{{"title", 1}, {"plot", 1}, {"_id", 0}}}}
37
	// specify the amount of time the operation can run on the server
38
	opts := options.Aggregate().SetMaxTime(5 * time.Second)
39
	// run pipeline
40
	cursor, err := collection.Aggregate(ctx, mongo.Pipeline{searchStage, limitStage, projectStage}, opts)
41
	if err != nil {
42
		panic(err)
43
	}
44
	// print results
45
	var results []bson.D
46
	if err = cursor.All(context.TODO(), &results); err != nil {
47
		panic(err)
48
	}
49
	for _, result := range results {
50
		fmt.Println(result)
51
	}
52
}

1
package main
2
3
import (
4
	"context"
5
	"fmt"
6
	"time"
7
8
	"go.mongodb.org/mongo-driver/bson"
9
	"go.mongodb.org/mongo-driver/mongo"
10
	"go.mongodb.org/mongo-driver/mongo/options"
11
)
12
13
// define structure of movies collection
14
type MovieCollection struct {
15
	title string `bson:"Title,omitempty"`
16
	plot  string `bson:"Plot,omitempty"`
17
}
18
19
func main() {
20
	var err error
21
	// connect to the Atlas cluster
22
	ctx := context.Background()
23
	client, err := mongo.Connect(ctx, options.Client().ApplyURI("<connection-string>"))
24
	if err != nil {
25
		panic(err)
26
	}
27
	defer client.Disconnect(ctx)
28
	// set namespace
29
	collection := client.Database("sample_mflix").Collection("movies")
30
	// define pipeline
31
	searchStage := bson.D{{"$search", bson.M{
32
		"index":    "partial-match-tutorial",
33
		"wildcard": bson.D{{"path", "plot"}, {"query", "*new* pur*"}},
34
	}}}
35
	limitStage := bson.D{{"$limit", 5}}
36
	projectStage := bson.D{{"$project", bson.D{{"title", 1}, {"plot", 1}, {"_id", 0}}}}
37
	// specify the amount of time the operation can run on the server
38
	opts := options.Aggregate().SetMaxTime(5 * time.Second)
39
	// run pipeline
40
	cursor, err := collection.Aggregate(ctx, mongo.Pipeline{searchStage, limitStage, projectStage}, opts)
41
	if err != nil {
42
		panic(err)
43
	}
44
	// print results
45
	var results []bson.D
46
	if err = cursor.All(context.TODO(), &results); err != nil {
47
		panic(err)
48
	}
49
	for _, result := range results {
50
		fmt.Println(result)
51
	}
52
}