Blend cream cheese, sugar, and salt in mixer bowl. Add 2 eggs, one at a time, beating after each addition. Blend in milk and vanilla (if mixture looks slightly curdled, don't worry - it bakes out). Spread cooled pineapple layer over bottom of pie shell. Pour cream cheese mixture over pineapple; sprinkle with pecans. Bake at 400 degrees for 10 minutes; reduce heat to 325 degrees and bake 50 minutes. Cool.