Performance of ORDER BY on sorting key prefix with braces is 2x slower than without due to inefficient execution plan.
Without braces:
```sql
EXPLAIN PIPELINE
SELECT
    CounterID,
    EventDate
FROM hits_v1
ORDER BY
    CounterID ASC,
    EventDate ASC

┌─explain───────────────────────────┐
│ (Expression)                      │
│ ExpressionTransform               │
│   (Sorting)                       │
│   MergingSortedTransform 19 → 1   │
│     (Expression)                  │
│     ExpressionTransform × 19      │
│       (ReadFromMergeTree)         │
│       MergeTreeInOrder × 19 0 → 1 │
└───────────────────────────────────┘
```
With braces:
```sql
EXPLAIN PIPELINE
SELECT
    CounterID,
    EventDate
FROM hits_v1
ORDER BY (CounterID, EventDate) ASC

┌─explain────────────────────────────────┐
│ (Expression)                           │
│ ExpressionTransform                    │
│   (Sorting)                            │
│   MergingSortedTransform 16 → 1        │
│     MergeSortingTransform × 16         │
│       LimitsCheckingTransform × 16     │
│         PartialSortingTransform × 16   │
│           (Expression)                 │
│           ExpressionTransform × 16     │
│             (ReadFromMergeTree)        │
│             MergeTreeThread × 16 0 → 1 │
└────────────────────────────────────────┘
```
}
        auto limit = std::make_unique<LimitStep>(
                query_plan.getCurrentDataStream(),
                limit_length, limit_offset, always_read_till_end, query.limit_with_ties, order_descr);
        if (query.limit_with_ties)
            limit->setStepDescription("LIMIT WITH TIES");
        query_plan.addStep(std::move(limit));
    }
}
void InterpreterSelectQuery::executeOffset(QueryPlan & query_plan)
{
    auto & query = getSelectQuery();
    
    if (!query.limitLength() && query.limitOffset())
    {
        UInt64 limit_length;
        UInt64 limit_offset;
        std::tie(limit_length, limit_offset) = getLimitLengthAndOffset(query, context);
        auto offsets_step = std::make_unique<OffsetStep>(query_plan.getCurrentDataStream(), limit_offset);
        query_plan.addStep(std::move(offsets_step));
    }
}
void InterpreterSelectQuery::executeExtremes(QueryPlan & query_plan)
{
    if (!context->getSettingsRef().extremes)
        return;
    auto extremes_step = std::make_unique<ExtremesStep>(query_plan.getCurrentDataStream());
    query_plan.addStep(std::move(extremes_step));
}
void InterpreterSelectQuery::executeSubqueriesInSetsAndJoins(QueryPlan & query_plan, SubqueriesForSets & subqueries_for_sets)