If it get's purged the transaction didnt happen at all. Problem is that every node got its own mempool. So a miner could just store all transactions and never purge them. But your node could have purged it. Its tricky to explain.
If it get's purged the transaction didnt happen at all. Problem is that every node got its own mempool. So a miner could just store all transactions and never purge them. But your node could have purged it. Its tricky to explain.