Merge branch 'master' into clustered/install-reorg
commit
39fadc605f
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@ -1,7 +1,7 @@
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---
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title: influxdb.cardinality() function
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description: >
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`influxdb.cardinality()` returns the series cardinality of data stored in InfluxDB.
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`influxdb.cardinality()` returns the series cardinality of data retrieved from InfluxDB.
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menu:
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flux_v0_ref:
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name: influxdb.cardinality
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@ -28,9 +28,16 @@ Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md
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------------------------------------------------------------------------------->
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`influxdb.cardinality()` returns the series cardinality of data stored in InfluxDB.
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`influxdb.cardinality()` returns the series cardinality of data retrieved from InfluxDB.
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{{% note %}}
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Although this function is similar to InfluxQL's [`SHOW SERIES CARDINALITY`](/influxdb/v1/query_language/spec/#show-series-cardinality),
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it works in a slightly different manner.
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`influxdb.cardinality()` is time bounded and reports the cardinality of data that matches the conditions passed into it rather than that of the bucket as a whole.
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{{% /note %}}
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##### Function type signature
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@ -107,6 +114,12 @@ The cardinality calculation excludes points that match the specified start time.
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Use a relative duration or absolute time. For example, `-1h` or `2019-08-28T22:00:00Z`.
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Durations are relative to `now()`. Default is `now()`.
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{{% note %}}
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The default value is `now()`, so any points that have been written into the future will
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not be counted unless a future `stop` date is provided.
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{{% /note %}}
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### predicate
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Predicate function that filters records.
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@ -120,15 +133,17 @@ Default is `(r) => true`.
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- [Query series cardinality in a bucket](#query-series-cardinality-in-a-bucket)
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- [Query series cardinality in a measurement//](#query-series-cardinality-in-a-measurement)
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- [Query series cardinality for a specific tag](#query-series-cardinality-for-a-specific-tag)
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- [Query series cardinality of Data Written In the Last 4 Hours](#query-series-cardinality-of-data-written-in-the-last-4-hours)
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### Query series cardinality in a bucket
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```js
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import "influxdata/influxdb"
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influxdb.cardinality(bucket: "example-bucket", start: -1y)
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influxdb.cardinality(bucket: "example-bucket", start: time(v: 1))
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```
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Note: if points have been written into the future, you will need to add an appropriate `stop` date
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### Query series cardinality in a measurement//
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@ -138,7 +153,7 @@ import "influxdata/influxdb"
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influxdb.cardinality(
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bucket: "example-bucket",
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start: -1y,
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start: time(v: 1),
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predicate: (r) => r._measurement == "example-measurement",
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)
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@ -150,7 +165,16 @@ influxdb.cardinality(
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```js
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import "influxdata/influxdb"
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influxdb.cardinality(bucket: "example-bucket", start: -1y, predicate: (r) => r.exampleTag == "foo")
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influxdb.cardinality(bucket: "example-bucket", start: time(v: 1), predicate: (r) => r.exampleTag == "foo")
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```
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### Query Cardinality of Data Written In the Last 4 hours
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```js
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import "influxdata/influxdb"
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influxdb.cardinality(bucket: "example-bucket", start: -4h)
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```
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@ -1088,7 +1088,7 @@ Each InfluxDB Cloud organization has a series cardinality limit to prevent
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runaway cardinality. For information about adjusting cardinality limits, see
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[How do I increase my organization’s rate limits and quotas?](#how-do-i-increase-my-organizations-rate-limits-and-quotas).
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{{% /oss-only %}}
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{{% /cloud-only %}}
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Use [`influxdb.cardinality()`](/flux/v0/stdlib/influxdata/influxdb/cardinality/) in Flux
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or [`SHOW SERIES CARDINALITY`](/influxdb/v1/query_language/spec/#show-series-cardinality)
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@ -920,11 +920,49 @@
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aliases:
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- /influxdb/v2/reference/flux/stdlib/experimental/mqtt/
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- /influxdb/cloud/reference/flux/stdlib/experimental/mqtt/
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prepend:
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block: warn
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content: |
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#### Only supported in InfluxDB Cloud (TSM)
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The `experimental/mqtt` package only supported in InfluxDB Cloud (TSM).
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It is still available to import in InfluxDB OSS and Enterprise, but
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functions will not successfully publish to an MQTT broker.
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exclude_from:
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nightly: true
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oss: ^*
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enterprise: ^*
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/flux/v0/stdlib/experimental/mqtt/to.md: |
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aliases:
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- /influxdb/v2/reference/flux/stdlib/experimental/mqtt/to/
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- /influxdb/cloud/reference/flux/stdlib/experimental/mqtt/to/
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prepend:
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block: warn
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content: |
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#### Only supported in InfluxDB Cloud (TSM)
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The `experimental/mqtt` package only supported in InfluxDB Cloud (TSM).
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It is still available to import in InfluxDB OSS and Enterprise, but
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functions will not successfully publish to an MQTT broker.
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exclude_from:
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nightly: true
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oss: ^*
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enterprise: ^*
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/flux/v0/stdlib/experimental/mqtt/publish.md: |
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prepend:
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block: warn
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content: |
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#### Only supported in InfluxDB Cloud (TSM)
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The `experimental/mqtt` package only supported in InfluxDB Cloud (TSM).
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It is still available to import in InfluxDB OSS and Enterprise, but
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functions will not successfully publish to an MQTT broker.
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exclude_from:
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nightly: true
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oss: ^*
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enterprise: ^*
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/flux/v0/stdlib/experimental/oee/_index.md: |
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aliases:
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@ -45,7 +45,8 @@
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{{ $versionSemVer := split $value "." }}
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{{ $supported := cond (ge (index $versionSemVer 0) (index $introducedSemVer 0)) (cond (ge (index $versionSemVer 1) (index $introducedSemVer 1)) (cond (ge (index $versionSemVer 2) (index $introducedSemVer 2)) true false) false) false }}
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{{ $deprecated := and (isset $.Page.Params "deprecated") (cond (ge (index $versionSemVer 0) (index $deprecatedSemVer 0)) (cond (ge (index $versionSemVer 1) (index $deprecatedSemVer 1)) (cond (ge (index $versionSemVer 2) (index $deprecatedSemVer 2)) true false) false) false) }}
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{{ $excluded := gt (len (findRE (string $excludePatternOSS) $key)) 0 }}
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{{ $nightlyExcluded := and (eq $key "nightly") $.Page.Params.exclude_from.nightly }}
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{{ $excluded := or (gt (len (findRE (string $excludePatternOSS) $key)) 0) $nightlyExcluded }}
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<div class="version-row">
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<div class="version-col"><p>InfluxDB {{ $key }}</p></div>
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<div class="version-col"><p>
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