transaction-isolation

Database transaction isolation levels

Databases MariaDB 1020 Error in Python Script After 11.8.3 Upgrade

Discover why MariaDB error 1020 ('Record has changed since last read') hits Python scripts post-upgrade to 11.8.3 due to innodb_snapshot_isolation=ON. Learn causes, repro steps, and fixes like session settings or retries for read-write-read patterns.

#databases
#innodb
#mariadb
#python
#transaction-isolation

1 answer• 1 view

02/09/2026, 05:48 PM