Add the cranberries, apples, and dates to the bowl of a food processor. Pulse a few times until the fruit is roughly chopped.
Add the pecans to the food processor. Pulse a few more times, scrapping down the sides of the bowl as necessary. Be sure not to over-process. Keep it chunky and crunchy.
Refrigerate the relish in an air-tight container until ready to serve.
Notes
Keep the texture chunky and be careful not to over-process it. For best results, use the pulse function on your food processor.
Make this relish up to 2 days in advance and cover and refrigerate it until ready to use. If kept longer than that it will become too watery. Stir well before serving.