How to figure out key name?

[Scott HarrisParticipant]

I am trying to delete events in the all in one calendar and purchased the bulk delete post by custom field addon for that. Is the ‘key’ the same as the field name in phpmyadmin? The ai1ec_events table lists fields called start and end, but when I try to delete events that ended prior to 5/31/2017, none are getting deleted. I have it set like this:
delete by custom field
post type=ailec_event
key=end
less than (date)
20170531

When I choose to delete, no events get deleted. Am I setting it up right?

[SudarKeymaster]

Hello Scott,

The key is the value that is displayed in the meta_key column of the post_meta table.

[Author]

Posts