system.row_policies
Contains filters for one particular table, as well as a list of roles and/or users which should use this row policy.
Columns:
- 
name(String) — Name of a row policy. - 
short_name(String) — Short name of a row policy. Names of row policies are compound, for example: myfilter ON mydb.mytable. Here "myfilter ON mydb.mytable" is the name of the row policy, "myfilter" is it's short name. - 
database(String) — Database name. - 
table(String) — Table name. Empty if policy for database. - 
id(UUID) — Row policy ID. - 
storage(String) — Name of the directory where the row policy is stored. - 
select_filter(Nullable(String)) — Condition which is used to filter rows. - 
is_restrictive(UInt8) — Shows whether the row policy restricts access to rows, see CREATE ROW POLICY. Value: - 
0— The row policy is defined withAS PERMISSIVEclause. - 
1— The row policy is defined withAS RESTRICTIVEclause. - 
apply_to_all(UInt8) — Shows that the row policies set for all roles and/or users. - 
apply_to_list(Array(String)) — List of the roles and/or users to which the row policies is applied. - 
apply_to_except(Array(String)) — The row policies is applied to all roles and/or users excepting of the listed ones.