According to the following page, a primary key is used for both LIKE and NOT LIKE conditions:
https://clickhouse.com/docs/en/engines/table-engines/mergetree-family/mergetree/#functions-support

As I found, a primary key is not used for NOT LIKE 'prefix%' conditions, engine scans all granules.

**How to reproduce**
ClickHouse Playground:
https://fiddle.clickhouse.com/095384c8-7b7e-45ec-b7e7-42dc8150be89

```
CREATE TABLE data
(str String)
ENGINE=MergeTree
ORDER BY str;

INSERT INTO data (str)
SELECT 'aa' FROM numbers(100000);

INSERT INTO data (str)
SELECT 'ba' FROM numbers(100000);

INSERT INTO data (str)
SELECT 'ca' FROM numbers(100000);

SET send_logs_level='trace';

SELECT count()
FROM data
WHERE str NOT LIKE 'a%';
```

`(SelectExecutor): Selected 3/3 parts by partition key, 3 parts by primary key, 36/36 marks by primary key, 36 marks to read from 3 ranges`

**Additional context**
Primary key is used for LIKE conditions, engine skips granules:
https://fiddle.clickhouse.com/95dd14a6-2e9f-4c45-94cd-169233f2a702

Primary key is used for != conditions, engine skips granules:
https://fiddle.clickhouse.com/e208b937-20c3-4cc0-896b-bfe83b42454a

bool contains(const FieldRef & x) const
    {
        return !leftThan(x) && !rightThan(x);
    }
    
    bool rightThan(const FieldRef & x) const
    {
        return less(left, x) || (left_included && equals(x, left));
    }
    
    bool leftThan(const FieldRef & x) const
    {
        return less(x, right) || (right_included && equals(x, right));
    }
    bool intersectsRange(const Range & r) const
    {
        
        if (less(r.right, left) || ((!left_included || !r.right_included) && equals(r.right, left)))
            return false;
        
        if (less(right, r.left) || ((!right_included || !r.left_included) && equals(r.left, right)))
            return false;
        return true;
    }
    bool containsRange(const Range & r) const