MySQL defines GTID (global transaction identifier) as "... a unique identifier created and associated with each transaction committed on the server of origin (master) ...".1
- Help page on multi-database environments
- Semantic MediaWiki: GitHub issue 3606– `smw_ft_search` causes "Error: 1785 Statement violates GTID consistency: Updates to non-transactional tables ..."
- This identifier is unique not only to the server on which it originated, but is unique across all servers in a given replication setup. There is a 1-to-1 mapping between all transactions and all GTIDs.