> In addition to the SQL-standard privilege system available through GRANT, tables can have row security policies that restrict, on a per-user basis, which rows

> In addition to the SQL-standard privilege system available through GRANT, tables can have row security policies that restrict, on a per-user basis, which rows can be returned by normal queries or inserted, updated, or deleted by data modification commands. This feature is also known as Row-Level Security https://www.postgresql.org/docs/11/ddl-rowsecurity.html https://www.postgresql.org/docs/11/ddl-rowsecurity.html