what is th eyear it built?
where are the picture of the footing for this pilastered column for the outdoor porch?
You could find the red flag that the footing settled or continuting settling.
if it's done settling, no big deal, just report with the mortar of same color and texture.
If it's the latter, fix the footign problem first then repeat above.
Hope this is not related to any seimic event.
good luck!