fill() function
fill() replaces all null values in input tables with a non-null value.
Output tables are the same as the input tables with all null values replaced in the specified column.
Function type signature
(<-tables: stream[B], ?column: string, ?usePrevious: bool, ?value: A) => stream[C] where B: Record, C: Record
For more information, see Function type signatures.
Parameters
column
Column to replace null values in. Default is _value.
value
Constant value to replace null values with.
Value type must match the type of the specified column.
usePrevious
Replace null values with the previous non-null value.
Default is false.
tables
Input data. Default is piped-forward data (<-).
Examples
Fill null values with a specified non-null value
import "sampledata"
sampledata.int(includeNull: true)
|> fill(value: 0)
Fill null values with the previous non-null value
import "sampledata"
sampledata.int(includeNull: true)
|> fill(usePrevious: true)
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