Group Loop Start

When starting a loop with this node, each iteration processes another group of rows. Specify the column(s) to group on and the input data table is sorted based on the specified columns before looping starts, by default. Sorting can be switched off if input data table is already properly sorted based on the columns to group on. If sorting is switched off, but input table is not properly sorted execution will fail.

Input ports

1. Type: Table
   Any Table
   Any input table. Each iteration will process one group of this table.

Output ports

1. Type: Table
   Grouped Input
   The current group of the input table.

External resources

• KNIME E-Learning Course: Section 7.2. Re-executing Workflow Parts: Loops