View the original community article here
Last tested: Jun 26, 2020
If pdt_event_log.action is like 'trigger%', 'regenerate%', 'reap%', that row is deleted after 5 days. But if the pdt_event_log.action_data contains any data at all after 5 days, action_data is overwritten with NULL
for that row.
This content is subject to limited support.