first() function
first() returns the first non-null record from each input table.
Note: first() drops empty tables.
Function type signature
(<-tables: stream[A], ?column: string) => stream[A] where A: Record
For more information, see Function type signatures.
Parameters
column
Column to operate on. Default is _value.
tables
Input data. Default is piped-forward data (<-).
Examples
Return the first row in each input table
import "sampledata"
sampledata.int()
|> first()
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