I have not set any executions save/prune related env vars. Defaults apply.
On my instance the latest executions are being deleted from the DB. I am referring to production executions triggered via rmq. Strangely all executions post Nov 28 - 2023 are getting pruned.
Sadly Tom doesn’t work at n8n anymore.
And there is no need to tag Jan if you do not get a fast reply.
The new support team is still ramping up so replies should get faster.
To answer the question, the default settings will prune your executions this should be from the old executions, but it might not start at the oldest.
It should prune everything older than 2 weeks if I recall correctly. There is also a limit of 10k executions to be saved by default. So if you have a lot of executions in a short time you might want to change that setting.
that should stop it yes.
If you enable it you also have to set the max nr of executions ENV variable to make sure it doesn’t prune with that setting in mind.