These settings are available in system.settings and are autogenerated from the ClickHouse snapshot.
mutations_execute_nondeterministic_on_initiator
If true constant nondeterministic functions (e.g. function now()) are executed on initiator and replaced to literals in UPDATE and DELETE queries. It helps to keep data in sync on replicas while executing mutations with constant nondeterministic functions. Default value: false.
mutations_execute_subqueries_on_initiator
If true scalar subqueries are executed on initiator and replaced to literals in UPDATE and DELETE queries. Default value: false.