RESTRICT ROWS
Configures the column used for row-level access control (RLAC); you can only define one primary key column.
If the column is already configured, running the RESTRICT ROWS command replaces the definition.
| Use DESCRIBE TABLE to view the existing restrictions on the table. | 
Syntax
RESTRICT ROWS ON [<keyspace_name>.]<table_name> USING <pk_column_name> ;
Syntax legend
| Syntax conventions | Description | 
|---|---|
| UPPERCASE | Literal keyword. | 
| Lowercase | Not literal. | 
| 
 | Variable value. Replace with a user-defined value. | 
| 
 | Optional.
Square brackets ( | 
| 
 | Group.
Parentheses (  | 
| 
 | Or.
A vertical bar ( | 
| 
 | Repeatable.
An ellipsis (  | 
| 
 | Single quotation ( | 
| 
 | Map collection.
Braces ( | 
| Set, list, map, or tuple.
Angle brackets (  | |
| 
 | End CQL statement.
A semicolon ( | 
| 
 | Separate the command line options from the command arguments with two hyphens (  | 
| 
 | Search CQL only: Single quotation marks ( | 
| 
 | Search CQL only: Identify the entity and literal value to overwrite the XML element in the schema and solrConfig files. | 
Examples
This example uses the cyclist_name so that each cyclist can view only their own expenses.
RLAC requires two commands in order to implement the restrictions
- 
a single RESTRICT command on the rows to filter 
- 
one or more GRANT commands to assign permissions 
For the cyclist_expenses table, configure the cyclist_name column for filtering so that permissions can be assigned.
  RESTRICT ROWS ON cycling.cyclist_expenses USING cyclist_name;Grant cyclist Vera Adrian permission to view her own expenses:
  GRANT SELECT ON 'Vera ADRIAN' ROWS IN cycling.cyclist_expenses TO cycling_accounts;