**Describe what's wrong**

Query with rollup using same selected field name as the name of underlying column reports structure mismatch

**Does it reproduce on recent release?**

yes

**How to reproduce**

`21.9.2.17`

```sql
CREATE TABLE test
(
    `d` DateTime,
    `a` LowCardinality(String),
    `b` UInt64
)
ENGINE = MergeTree
PARTITION BY toDate(d)
ORDER BY d;

SELECT *
FROM (
    SELECT
        a,
        max((d, b)).2 AS value
    FROM test
    GROUP BY rollup(a)
)
WHERE a <> '';
```

**Expected behavior**

This used to return an ok result on v21.8

**Error message and/or stacktrace**

> Code: 352. DB::Exception: Block structure mismatch in (columns with identical name must have identical structure) stream: different columns:
> notEquals(a, '') LowCardinality(UInt8) ColumnLowCardinality(size = 0, UInt8(size = 0), ColumnUnique(size = 1, UInt8(size = 1)))
> notEquals(a, '') LowCardinality(UInt8) Const(size = 0, ColumnLowCardinality(size = 1, UInt8(size = 1), ColumnUnique(size = 2, UInt8(size = 2)))). (AMBIGUOUS_COLUMN_NAME) (version 21.9.2.17 (official build))



ContextPtr context,
    const StorageID & table_id,
    const StorageMetadataPtr & table_metadata,
    const TreeRewriterResult & syntax_analyzer_result)
{
    if (!syntax_analyzer_result.has_explicit_columns && table_metadata && !table_metadata->getColumns().empty())
    {
        
        
        
        
        
        auto access = context->getAccess();
        for (const auto & column : table_metadata->getColumns())
        {
            if (access->isGranted(AccessType::SELECT, table_id.database_name, table_id.table_name, column.name))
                return;
        }
        throw Exception(
            ErrorCodes::ACCESS_DENIED,
            "{}: Not enough privileges. To execute this query it's necessary to have grant SELECT for at least one column on {}",
            context->getUserName(),
            table_id.getFullTableName());
    }
    
    context->checkAccess(AccessType::SELECT, table_id, syntax_analyzer_result.requiredSourceColumnsForAccessCheck());
}
static bool shouldIgnoreQuotaAndLimits(const StorageID & table_id)