Hello!

I've started to use `DateTime64` recently and faced the next issue with `toDate()`/`toDate32()` functions.

This query works fine:
```sql
SELECT toDate('2022-07-26 00:00:00')

Query id: bf64d8a8-018d-4b3e-ae24-f92600a1fa15

┌─toDate('2022-07-26 00:00:00')─┐
│                    2022-07-26 │
└───────────────────────────────┘

1 rows in set. Elapsed: 0.003 sec.
```

But when the string representation of the timestamp has the milliseconds fraction the function does not work:
```sql
SELECT toDate('2022-07-26 00:00:00.000')

Query id: 8b42473a-0ceb-4892-b0e7-6f73f583d4b4


0 rows in set. Elapsed: 0.006 sec.

Received exception from server (version 22.3.8):
Code: 6. DB::Exception: Received from s:9000. DB::Exception: Cannot parse string '2022-07-26 00:00:00.000' as Date: syntax error at position 10 (parsed just '2022-07-26'): While processing toDate('2022-07-26 00:00:00.000'). (CANNOT_PARSE_TEXT)
```

The `toDate32()` doesn't work in both cases.

Yes, you can say I must change the input or use a workaround like this:
```sql
SELECT toDate(toDateTime64('2022-07-26 00:00:00.000', 3, 'UTC')) AS date
```

But it's not convenient and it'd be great if the mentioned functions will ignore the time part.

P.s. ClickHouse server version: `22.3.8.39`

for (size_t row = 0; row < offsets.size(); ++row)
            {
                for (size_t i = offsets[static_cast<ssize_t>(row) - 1]; i < offsets[row]; ++i)
                {
                    auto ref = key_column_str.getDataAt(i);
                    bool inserted;
                    SubcolumnsMap::LookupResult it;
                    subcolumns.emplace(ref, it, inserted);
                    auto & subcolumn = it->getMapped();
                    if (inserted)
                        subcolumn = value_column.cloneEmpty()->cloneResized(row);
                    
                    if (subcolumn->size() == row)
                        subcolumn->insertFrom(value_column, i);
                }
                
                for (const auto & [_, subcolumn] : subcolumns)
                    if (subcolumn->size() == row)
                        subcolumn->insertDefault();
            }
            auto column_object = ColumnObject::create(has_nullable_subcolumns);
            for (auto && [key, subcolumn] : subcolumns)
            {
                PathInData path(key.toView());
                column_object->addSubcolumn(path, std::move(subcolumn));
            }
            return column_object;
        };
    }
    WrapperType createObjectWrapper(const DataTypePtr & from_type, const DataTypeObject * to_type) const