This section contains descriptions of server settings i.e settings which cannot be changed at the session or query level.
This section contains descriptions of server settings. These are settings which
cannot be changed at the session or query level.For more information on configuration files in ClickHouse see ""Configuration Files"".Other settings are described in the ""Settings"" section.
Before studying the settings, we recommend reading the Configuration files
section and note the use of substitutions (the incl and optional attributes).