SingleStore DB

What isolation levels does SingleStore DB provide?

SingleStore DB provides the READ COMMITTED isolation level. This guarantees that no transaction will read any uncommitted data from another transaction. Furthermore, once a change is observed in one transaction, it will be visible to all future transactions.

Unlike the REPEATABLE READ or SNAPSHOT isolation level, READ COMMITTED isolation level does not guarantee that a row will remain the same for every read query in a given transaction. Applications that use SingleStore DB should take this into account.

Even though regular transactions use READ COMMITTED isolation level, backups created using the BACKUP command use SNAPSHOT isolation level.