Distinct

Distinct( set )

Distinct( set )

Distinct( set )

Distinct( set )

distinct( set )

distinct( set )

Distinct( set )

Distinct( set )

Description

The Distinct function returns a SetRef object that represents all of the unique elements in the provided SetRef.

Parameters

Argument Type Definition and Requirements

Argument	Type	Definition and Requirements
`set`	SetRef	The SetRef to evaluate for distinct elements.

set

SetRef

The SetRef to evaluate for distinct elements.

Returns

A SetRef for the distinct operation.

Examples

The query below show all of the elements in the "elements_of_spells" index. The index contains duplicate values for "fire" and "water".

curl https://db.fauna.com/ \
    -u fnAChGwBcAACAO70ziE0cfROosNJHdgBmJU1PgpL: \
    -d '{ "paginate": { "match": { "index": "elements_of_spells" } } }'

client.Query(Paginate(Match(Index("elements_of_spells"))));

System.out.println(
    client.query(
      Paginate(Match(Index(Value("elements_of_spells"))))
    ).get());

result, _ := client.Query(f.Paginate(f.Match(f.Index("elements_of_spells"))))

fmt.Println(result)

client.query(Paginate(Match(Index("elements_of_spells"))))

client.query(q.paginate(q.match(q.index("elements_of_spells"))))

$client.query do
  paginate match(index('elements_of_spells'))
end

client.query(
    Paginate(Match(index: Index("elements_of_spells")))
)

client.query(q.Paginate(q.Match(q.Index("elements_of_spells"))))
  .then((ret) => console.log(ret))

HTTP/1.1 200 OK
{
  "resource": {
    "data": [ "air", "earth", "fire", "fire", "water", "water" ]
  }
}

{
  "data": [ "air", "earth", "fire", "fire", "water", "water" ]
}

{
  data: ["air", "earth", "fire", "fire", "water", "water"]
}

map[data:[air earth fire fire water water]]

{
  "data": [ "air", "earth", "fire", "fire", "water", "water" ]
}

{
  "data": [ "air", "earth", "fire", "fire", "water", "water" ]
}

{
  "data": [ "air", "earth", "fire", "fire", "water", "water" ]
}

{
  "data": [ "air", "earth", "fire", "fire", "water", "water" ]
}

{ data: [ 'air', 'earth', 'fire', 'fire', 'water', 'water' ] }

When the set operator Distinct is applied to this query, the duplicate values, "fire" and "water" are eliminated.

curl https://db.fauna.com/ \
    -u fnAChGwBcAACAO70ziE0cfROosNJHdgBmJU1PgpL: \
    -d '{
          "paginate": {
            "distinct": { "match": { "index": "elements_of_spells" } }
          }
        }'

client.Query(
  Paginate(Distinct(Match(Index("elements_of_spells")))));

System.out.println(
        client.query(
           Paginate(Distinct(Match(Index(Value("elements_of_spells")))))
        ).get());

result, _ := client.Query(
    f.Paginate(
        f.Distinct(f.Match(f.Index("elements_of_spells"))),
    ),
)

fmt.Println(result)

client.query(
  Paginate(Distinct(Match(Index("elements_of_spells")))))

client.query(
  q.paginate(q.distinct(q.match(q.index("elements_of_spells")))))

$client.query do
  paginate distinct(match(index('elements_of_spells')))
end

client.query(
    Paginate(
        Distinct(Match(index: Index("elements_of_spells")))
    )
)

client.query(q.Paginate(q.Distinct(q.Match(q.Index("elements_of_spells")))))
  .then((ret) => console.log(ret))

HTTP/1.1 200 OK
{ "resource": { "data": [ "air", "earth", "fire", "water" ] } }

{ "data": [ "air", "earth", "fire", "water" ] }

{ data: ["air", "earth", "fire", "water"] }

map[data:[air earth fire water]]

{ "data": [ "air", "earth", "fire", "water" ] }

{ "data": [ "air", "earth", "fire", "water" ] }

{ "data": [ "air", "earth", "fire", "water" ] }

{ "data": [ "air", "earth", "fire", "water" ] }

{ data: [ 'air', 'earth', 'fire', 'water' ] }

The events view of a set of values include the resources themselves, the distinct function returns the same set.

curl https://db.fauna.com/ \
    -u fnAChGwBcAACAO70ziE0cfROosNJHdgBmJU1PgpL: \
    -d '{
          "paginate": {
            "distinct": { "match": { "index": "elements_of_spells" } }
          },
          "events": true
        }'

client.Query(
  Paginate(
    Distinct(Match(Index("elements_of_spells"))),
    events: true));

System.out.println(
     client.query(
        Events(
          Paginate(Distinct(Match(Index(Value("elements_of_spells")))))
        )
     ).get());

result, _ := client.Query(
    f.Paginate(
        f.Events(
            f.Distinct(f.Match(f.Index("elements_of_spells"))),
        ),
    ),
)

fmt.Println(result)

client.query(
  Paginate(
    Distinct(Match(Index("elements_of_spells"))),
    events = true))

client.query(
  q.paginate(
    q.distinct(q.match(q.index("elements_of_spells"))),
    events=True
  ))

$client.query do
  paginate distinct(match(index('elements_of_spells'))),
           events: true
end

client.query(
    Paginate(
        Distinct(Match(index: Index("elements_of_spells"))),
        events: true
    )
)

client.query(
  q.Paginate(
    q.Events(q.Distinct(q.Match(q.Index("elements_of_spells"))))))
.then((ret) => console.log(ret))

HTTP/1.1 200 OK
{
  "resource": {
    "data": [
      {
        "ts": 1509244539203043,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642046968320" },
        "values": [ "air" ]
      },
      {
        "ts": 1509244539203043,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642046968320" },
        "values": [ "fire" ]
      },
      {
        "ts": 1509244539223511,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642071085568" },
        "values": [ "fire" ]
      },
      {
        "ts": 1509244539223511,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642071085568" },
        "values": [ "water" ]
      },
      {
        "ts": 1509244539235128,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642088911360" },
        "values": [ "earth" ]
      },
      {
        "ts": 1509244539235128,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642088911360" },
        "values": [ "water" ]
      },
      {
        "ts": 1509244539709690,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642581742080" },
        "values": [ "air" ]
      },
      {
        "ts": 1509244539764856,
        "action": "create",
        "resource": { "@ref": "classes/spells/181388642581742080" },
        "values": [ "earth" ]
      },
      {
        "ts": 1509244539795464,
        "action": "delete",
        "resource": { "@ref": "classes/spells/181388642581742080" },
        "values": [ "air" ]
      },
      {
        "ts": 1509244539795464,
        "action": "delete",
        "resource": { "@ref": "classes/spells/181388642581742080" },
        "values": [ "earth" ]
      }
    ]
  }
}

{
  "data": [
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539709690,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539764856,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    }
  ]
}

{
  data: [
    {
      ts: 1527267261636139,
      action: "add",
      instance: ref(id = "181388642071085568", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["fire"]
    {
      ts: 1527267261636139,
      action: "add",
      instance: ref(id = "181388642071085568", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["water"]
    {
      ts: 1527267261664785,
      action: "add",
      instance: ref(id = "181388642046968320", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["air"]
    {
      ts: 1527267261664785,
      action: "add",
      instance: ref(id = "181388642046968320", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["fire"]
    {
      ts: 1527267261713947,
      action: "add",
      instance: ref(id = "181388642088911360", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["earth"]
    {
      ts: 1527267261713947,
      action: "add",
      instance: ref(id = "181388642088911360", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["water"]
    {
      ts: 1527267261924953,
      action: "add",
      instance: ref(id = "181388642581742080", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["air"]
    {
      ts: 1527267261964739,
      action: "remove",
      instance: ref(id = "181388642581742080", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["air"]
    {
      ts: 1527267262013935,
      action: "add",
      instance: ref(id = "181388642581742080", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["air"]
    {
      ts: 1527267262062984,
      action: "remove",
      instance: ref(id = "181388642581742080", class = ref(id = "spells", class = ref(id = "classes"))),
      data: ["air"]
    }
  ]
}

map[data:[
  map[ts:1509244539203043 action:add instance:{181388642046968320 0xc42026c920 <nil>} data:[air]]
  map[ts:1509244539203043 action:add instance:{181388642046968320 0xc42026cc40 <nil>} data:[fire]]
  map[ts:1509244539223511 action:add instance:{181388642071085568 0xc42026cf80 <nil>} data:[fire]]
  map[ts:1509244539223511 action:add instance:{181388642071085568 0xc42026d2a0 <nil>} data:[water]]
  map[ts:1509244539235128 action:add instance:{181388642088911360 0xc42026d5c0 <nil>} data:[earth]]
  map[ts:1509244539235128 action:add instance:{181388642088911360 0xc42026d8e0 <nil>} data:[water]]
  map[ts:1509244539709690 action:add instance:{181388642581742080 0xc42026dc00 <nil>} data:[air]]
  map[ts:1509244539764856 action:add instance:{181388642581742080 0xc42026df20 <nil>} data:[earth]]
  map[ts:1509244539795464 action:remove instance:{181388642581742080 0xc420284240 <nil>} data:[air]]
  map[ts:1509244539795464 action:remove instance:{181388642581742080 0xc420284560 <nil>} data:[earth]]
]]

{
  "data": [
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539709690,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539764856,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    }
  ]
}

{
  "data": [
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539709690,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539764856,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    }
  ]
}

{
  "data": [
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539709690,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539764856,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    }
  ]
}

{
  "data": [
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539203043,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642046968320" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "fire" ]
    },
    {
      "ts": 1509244539223511,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642071085568" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539235128,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642088911360" },
      "values": [ "water" ]
    },
    {
      "ts": 1509244539709690,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539764856,
      "action": "create",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "air" ]
    },
    {
      "ts": 1509244539795464,
      "action": "delete",
      "resource": { "@ref": "classes/spells/181388642581742080" },
      "values": [ "earth" ]
    }
  ]
}

{ data:
  [  { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642046968320, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642046968320, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642071085568, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642071085568, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642088911360, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642088911360, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642581742080, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'add',
       instance:
        Ref(id=181388642581742080, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'remove',
       instance:
        Ref(id=181388642581742080, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] },
     { ts: 1527095186458101,
       action: 'remove',
       instance:
        Ref(id=181388642581742080, class=Ref(id=spells, class=Ref(id=classes))),
       data: [Array] } ] }

Was this article helpful?

We're sorry to hear that.
Tell us how we can improve! documentation@fauna.com

Thank you for your feedback!