

**How to reproduce**

```sql
CREATE TABLE t_local
(
    `d` DateTime,
    `v` UInt32
)
ENGINE = MergeTree
ORDER BY toStartOfHour(d);

CREATE TABLE t_dist AS t_local
ENGINE = Distributed(test_shard_localhost, currentDatabase(), t_local);

INSERT INTO t_local VALUES (now(), 1);
```

```sql

EXPLAIN PIPELINE
SELECT v
FROM t_dist
ORDER BY
    toStartOfHour(d) ASC,
    v ASC
SETTINGS optimize_monotonous_functions_in_order_by = 0

┌─explain────────────────────────────┐
│ (SettingQuotaAndLimits)            │
│   (Expression)                     │
│   ExpressionTransform              │
│     (Sorting)                      │
│  -> FinishSortingTransform <-      │
│       PartialSortingTransform      │
│         (Expression)               │
│         ExpressionTransform        │
│           (SettingQuotaAndLimits)  │
│             (ReadFromMergeTree)    │
│             MergeTreeInOrder 0 → 1 │
└────────────────────────────────────┘

EXPLAIN PIPELINE
SELECT v
FROM t_dist
ORDER BY
    toStartOfHour(d) ASC,
    v ASC
SETTINGS optimize_monotonous_functions_in_order_by = 1

┌─explain──────────────────────────────┐
│ (SettingQuotaAndLimits)              │
│   (Expression)                       │
│   ExpressionTransform                │
│     (Sorting)                        │
│  -> MergeSortingTransform   <-            │
│       LimitsCheckingTransform        │
│         PartialSortingTransform      │
│           (Expression)               │
│           ExpressionTransform        │
│             (SettingQuotaAndLimits)  │
│               (ReadFromMergeTree)    │
│               MergeTreeInOrder 0 → 1 │
└──────────────────────────────────────┘

EXPLAIN SYNTAX
SELECT v
FROM t_dist
ORDER BY
    toStartOfHour(d) ASC,
    v ASC
SETTINGS optimize_monotonous_functions_in_order_by = 1

Query id: 1add8abb-1f3c-4f50-82df-cadcf162358d

┌─explain────────────────────────────────────────────────┐
│ SELECT v                                               │
│ FROM t_dist                                            │
│ ORDER BY                                               │
│     d ASC,                                             │
│     v ASC                                              │
│ SETTINGS optimize_monotonous_functions_in_order_by = 1 │
└────────────────────────────────────────────────────────┘
```
It happens, because `optimize_monotonous_functions_in_order_by` eliminates monotonous function from `ORDER BY`, while it is used for matching the prefix of primary key and `optimize_read_in_order` doesn't work.
{
    
    
    
    select_query->setExpression(ASTSelectQuery::Expression::GROUP_BY, std::make_shared<ASTExpressionList>());
    select_query->groupBy()->children.emplace_back(std::make_shared<ASTLiteral>(Int64(-1)));
}
void optimizeGroupBy(ASTSelectQuery * select_query, ContextPtr context)
{
    const FunctionFactory & function_factory = FunctionFactory::instance();
    if (!select_query->groupBy())
        return;
    const auto is_literal = [] (const ASTPtr & ast) -> bool
    {
        return ast->as<ASTLiteral>();
    };
    auto & group_exprs = select_query->groupBy()->children;
    
    const auto remove_expr_at_index = [&group_exprs] (const size_t idx)
    {
        if (idx < group_exprs.size() - 1)
            std::swap(group_exprs[idx], group_exprs.back());
        group_exprs.pop_back();
    };
    const auto & settings = context->getSettingsRef();
    
    for (size_t i = 0; i < group_exprs.size();)