# Target fields table

![Target fields table in Row denormaliser](/files/SUNJVyrPzskco8VOsWyV)

Use the **Target fields** table to select the fields to denormalize by specifying the String value for the **Key field**. Options are provided to convert data types. Strings are most common as key-value pairs so you must often convert to Integer, Number or Date. If you get key-value pair collisions (key is not unique for the group specified), specify the aggregation method to use. You can click **Get lookup fields** to retrieve fields from the PDI data stream.


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