Aggregating input rows on output

You have several options for aggregating input rows on output.

• Aggregate all rows in a single output row. This is the default option.
• Generate one output row per input row. This is the Single row option.
• Trigger a new output row when the value of an input column changes.
• Trigger a new output row when the value of a passthrough column changes.

  A passthrough column is an output column that has no XPath expression in the Description property and whose name exactly matches the name of an input column.