These settings are available in system.settings and are autogenerated from the ClickHouse snapshot.
restore_replace_external_dictionary_source_to_null
Replace external dictionary sources to Null on restore. Useful for testing purposes
restore_replace_external_engines_to_null
For testing purposes. Replaces all external engines to Null to not initiate external connections.
restore_replace_external_table_functions_to_null
For testing purposes. Replaces all external table functions to Null to not initiate external connections.