monitor.stateChangesOnly() function
monitor.stateChangesOnly() takes a stream of tables that contains a _level column
and returns a stream of tables grouped by _level where each record
represents a state change.
Function type signature
(<-tables: stream[{A with _level: B}]) => stream[C] where B: Equatable, C: RecordFor more information, see Function type signatures.
Parameters
tables
Input data. Default is piped-forward data (<-).
Examples
Return records representing state changes
import "array"
import "influxdata/influxdb/monitor"
data =
array.from(
rows: [
{_time: 2021-01-01T00:00:00Z, _level: "ok"},
{_time: 2021-01-01T00:01:00Z, _level: "ok"},
{_time: 2021-01-01T00:02:00Z, _level: "warn"},
{_time: 2021-01-01T00:03:00Z, _level: "crit"},
],
)
data
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