experimental.first() function
experimental.first() is subject to change at any time.
experimental.first() returns the first record with a non-null value in the _value column
for each input table.
experimental.first() drops empty tables.
Function type signature
(<-tables: stream[{A with _value: B}]) => stream[{A with _value: B}]
For more information, see Function type signatures.
Parameters
tables
Input data. Default is piped-forward data (<-).
Examples
Return the first non-null value in each input table
import "experimental"
import "sampledata"
sampledata.int(includeNull: true)
|> experimental.first()
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