22.2.1.4422.

```
create table test_alias (K Int64, D Date, S String, B Int64 Alias length(S)) Engine=MergeTree order by K;
insert into test_alias select number, today(), 'sdfsdfsdfsdfsdfds' from numbers(10000000);

session1: 
clickhouse-benchmark -c 10 <<< "insert into test_alias select number, today(), 'sdfsdfsdfsdfsdfds' from numbers(10000)"

session2: 
alter table test_alias drop column B;
0 rows in set. Elapsed: 251.043 sec.
```

especially it can be a problem with S3 disks

Alias columns do not persist in parts even in columns.txt
backQuote(column_name), toString(column_default->kind), toString(column_default->kind));
                }
                if (command.to_remove == AlterCommand::RemoveProperty::MATERIALIZED && column_default->kind != ColumnDefaultKind::Materialized)
                {
                    throw Exception(
                        ErrorCodes::BAD_ARGUMENTS,
                        "Cannot remove MATERIALIZED from column {}, because column default type is {}. Use REMOVE {} to delete it",
                        backQuote(column_name), toString(column_default->kind), toString(column_default->kind));
                }
                if (command.to_remove == AlterCommand::RemoveProperty::ALIAS && column_default->kind != ColumnDefaultKind::Alias)
                {
                    throw Exception(
                        ErrorCodes::BAD_ARGUMENTS,
                        "Cannot remove ALIAS from column {}, because column default type is {}. Use REMOVE {} to delete it",
                        backQuote(column_name), toString(column_default->kind), toString(column_default->kind));
                }
            }
            if (command.isRemovingProperty())
            {
                if (!column_default && command.to_remove == AlterCommand::RemoveProperty::DEFAULT)
                    throw Exception(
                        ErrorCodes::BAD_ARGUMENTS,
                        "Column {} doesn't have DEFAULT, cannot remove it",
                        backQuote(column_name));
                if (!column_default && command.to_remove == AlterCommand::RemoveProperty::ALIAS)
                    throw Exception(
                        ErrorCodes::BAD_ARGUMENTS,
                        "Column {} doesn't have ALIAS, cannot remove it",
                        backQuote(column_name));
                if (!column_default && command.to_remove == AlterCommand::RemoveProperty::MATERIALIZED)