--innodb-log-optimize-ddl

This is a command-line option for the mariadbd & mysqld commands.

In 10.5 ES, 10.5 CS:

Deprecated parameter with no effect.

In 10.4 ES, 10.3 ES, 10.2 ES:

Reduce redo logging when natively creating indexes or rebuilding tables. Setting this OFF avoids delay due to page flushing and allows concurrent backup. (Defaults to on; use --skip-innodb-log-optimize-ddl to disable.)

In 10.4 CS, 10.3 CS, 10.2 CS:

DEPRECATED. Ignored in MariaDB 10.5. Reduce redo logging when natively creating indexes or rebuilding tables. Enabling this may slow down backup and cause delay due to page flushing.

See also: Options for mariadbd & mysqld in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS