Drain pineapple, reserving juice. Place pineapple in a large serving bowl, and set aside.
Bring 1 cup reserved juice, brown sugar, butter, and curry powder to a boil in a saucepan; reduce heat, and simmer, uncovered, 20 minutes. Pour mixture over pineapple, tossing to coat. Sprinkle with chopped pecans. Serve warm or at room temperature.
