# Variables
System Settings.
System Settings.
System Settings.
System Settings.
Online DDL.
System Settings.
System Settings.
System Settings.
Read After Write settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
System Settings.
# Structs
SystemVariable is a system variable that Vitess handles in queries such as: select @@sql_mode set skip_query_plan_cache = true.