system.grants
Privileges granted to ClickHouse user accounts.
Columns:
- 
role_name(Nullable(String)) — Role assigned to user account. - 
access_type(Enum8) — Access parameters for ClickHouse user account. - 
column(Nullable(String)) — Name of a column to which access is granted. - 
is_partial_revoke(UInt8) — Logical value. It shows whether some privileges have been revoked. Possible values: - 
0— The row describes a grant. - 
1— The row describes a partial revoke. - 
grant_option(UInt8) — Permission is grantedWITH GRANT OPTION, see GRANT.