Function call

call(
functionName: string,
args: (string | Condition | ConditionChain)[],
): ConditionChain
Helper function to call a custom SQL function
Parameters
- functionName: string
  The name of the function to call
- args: (string | Condition | ConditionChain)[]
  Arguments to pass to the function
Returns ConditionChain
A ConditionChain that can be chained with .and() or .or()
Example
```
policy('custom_access')
  .on('data')
  .for('SELECT')
  .when(call('check_permission', ['user_id', 'read']))
```
- Defined in ../home/runner/work/ts-to-rls/ts-to-rls/src/column.ts:617