Skip to content

Lead/Lag

Lead/Lag allows the user to determine a value from a preceding or following row at a given offset within a group (or partition) of values. This component uses a Snowflake window function.

Properties

Name = string

A human-readable name for the component.

Include Input Columns = boolean

When Yes, the component passes all input columns into the output.

Partition Data = dual listbox

Defines how the input data is partitioned to perform the rank calculation. The calculation is then performed on each partition.

Orderings Within Partitions = column editor

  • Input Column: The input column name for sorting within the partitioned data. You can drag columns to reorder them.
  • Ordering: The order of the sorting: Ascending, Descending, Nulls first, or Nulls Last.

Functions = column editor

  • Window Function:
  • Input Column: The name of the input column that the lead/lag function will return.
  • Offset: The number of rows to go forward (lead) or backwards (lag) in the partition.
  • Output Column: The name of the output column that the window function will create.

Ingore Nulls = boolean

When Yes, disregard null values when determining which row to use. Null values do not count toward reaching the offset.