**Describe what's wrong**

Creating a table with a Map-type Ephemeral column will make the server crash on the restart because of wrongly save metadata.

Fiddle to reproduce: https://fiddle.clickhouse.com/81fc3a83-f7ea-43c2-afad-2e2940d04e8c

**Does it reproduce on recent release?**

Tested on version 22.11.1.1286.

**How to reproduce**

* Use version 22.11.x
* Use the fiddle above to reproduce.

**Expected behavior**

When creating a `EPHEMERAL` columns, a default value is assigned.
Example with a Int32:
```sql
CREATE TABLE name (
  example_col Int32 EPHEMERAL
) -- ... engine stuff here ...
```

Metadata will assign a default value:
```sql
CREATE TABLE name (
  example_col Int32 EPHEMERAL 0
) -- ... engine stuff here ...
```

But, with Map-type, no default value gets assigned, only a `()` (empty parenthesis).

**Error message and/or stacktrace**

```
2022.12.07 14:59:29.359153 [ 11464597 ] {} <Error> Application: DB::Exception: Syntax error (in file /Users/vlourme/Desktop/ch/store/75e/75e717de-1bbd-4011-802c-acd04e9a3409/bug_ephemeral.sql): failed at position 118 ('(') (line 4, col 41): (),
    `result` Int32 DEFAULT (data['number']) * 2
)
ENGINE = MergeTree
ORDER BY id
SETTINGS index_granularity = 8192
. Expected one of: literal, NULL, number, Bool, true, false, string literal, NOT, COMMENT, CODEC, TTL, token, Comma, ClosingRoundBracket: Cannot parse definition from metadata file /Users/vlourme/Desktop/ch/store/75e/75e717de-1bbd-4011-802c-acd04e9a3409/bug_ephemeral.sql
```

**Additional context**

The issue can't be fixed by setting a default expression after `EPHEMERAL`, this, for example will not work:
```sql
CREATE TABLE bug_ephemeral (
    id Int32,
    data Map(String, Int32) EPHEMERAL {},
    result Int DEFAULT data['number'] * 2
)
Engine = MergeTree()
ORDER BY (id);
```

But this, is accepted:
```sql
CREATE TABLE bug_ephemeral (
    id Int32,
    data Int32 EPHEMERAL 12,
    result Int DEFAULT data * 2
)
Engine = MergeTree()
ORDER BY (id);
```

for (const auto & [name, type] : properties.columns.getAllPhysical())
        {
            if (type->hasDynamicSubcolumns())
            {
                throw Exception(ErrorCodes::ILLEGAL_COLUMN,
                    "Cannot create table with column '{}' which type is '{}' "
                    "because experimental Object type is not allowed. "
                    "Set setting allow_experimental_object_type = 1 in order to allow it",
                    name, type->getName());
            }
        }
    }
    if (!create.attach && !settings.allow_suspicious_fixed_string_types)
    {
        for (const auto & [name, type] : properties.columns.getAllPhysical())
        {
            auto basic_type = removeLowCardinality(removeNullable(type));
            if (const auto * fixed_string = typeid_cast<const DataTypeFixedString *>(basic_type.get()))
            {
                if (fixed_string->getN() > MAX_FIXEDSTRING_SIZE_WITHOUT_SUSPICIOUS)
                    throw Exception(ErrorCodes::ILLEGAL_COLUMN,
                        "Cannot create table with column '{}' which type is '{}' "
                        "because fixed string with size > {} is suspicious. "
                        "Set setting allow_suspicious_fixed_string_types = 1 in order to allow it",
                        name, type->getName(), MAX_FIXEDSTRING_SIZE_WITHOUT_SUSPICIOUS);
            }
        }
    }
}
String InterpreterCreateQuery::getTableEngineName(DefaultTableEngine default_table_engine)