experimental.first() function
The experimental.first() function is subject to change at any time.
By using this function, you accept the risks of experimental functions.
The experimental.first() function returns the first record with a non-null
value in the _value column.
experimental.first() is a selector function.
import "experimental"
experimental.first()
Empty tables
experimental.first() drops empty tables.
Parameters
tables
Input data.
Default is piped-forward data (<-).
Examples
Return the first non-null value
import "experimental"
data
|> experimental.first()
Input data
| _time | _value |
|---|---|
| 2021-01-01T00:00:00Z | 1.2 |
| 2021-01-01T00:01:00Z | 0.6 |
| 2021-01-01T00:02:00Z | 2.3 |
| 2021-01-01T00:03:00Z | 0.9 |
Output data
| _time | _value |
|---|---|
| 2021-01-01T00:00:00Z | 1.2 |
Support and feedback
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