Usage de base

This page lists all the different examples for different kind of steps.

Those steps provides very basic features and are straightforward to use.

Example	Description
project	Select columns to forward and also creates new columns.
update	Updates the values of the columns.
remove	Removes columns.

This step creates title/total rows and also performs computations on a group of rows defined by some conditions.

Example	Description
basic	Basic break and computations.
inner	Inner breaks and subcomputations.

The remaining steps documented in the specification section:

Step	Description
sort	Sorts the input rows according to one or more criteria.
filter	Keeps only the input rows matching one or more criteria.
union	Concatenates the rows of the current step with those of other root steps.
skip	Applies a sub-step only to rows matching a filter; other rows are forwarded unchanged.
join	Joins the current step with another root step (SQL-like JOIN).
cube	Generates a pivot (data cube) from a pivot column.
notify	Emits notifications to the registered listeners.
script	Executes a JavaScript or JEXL script at startup and/or for each row.