**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);
```

else
    {
        bool is_on_cluster = getContext()->getClientInfo().query_kind == ClientInfo::QueryKind::SECONDARY_QUERY;
        bool has_uuid = create.uuid != UUIDHelpers::Nil || create.to_inner_uuid != UUIDHelpers::Nil;
        if (has_uuid && !is_on_cluster)
            throw Exception(ErrorCodes::INCORRECT_QUERY,
                            "{} UUID specified, but engine of database {} is not Atomic", kind, create.getDatabase());
        
        create.uuid = UUIDHelpers::Nil;
        create.to_inner_uuid = UUIDHelpers::Nil;
    }
}
BlockIO InterpreterCreateQuery::createTable(ASTCreateQuery & create)
{
    
    if (create.temporary && create.database)
        throw Exception("Temporary tables cannot be inside a database. You should not specify a database for a temporary table.",
            ErrorCodes::BAD_DATABASE_FOR_TEMPORARY_TABLE);
    String current_database = getContext()->getCurrentDatabase();
    auto database_name = create.database ? create.getDatabase() : current_database;
    DDLGuardPtr ddl_guard;
    
    if (create.attach && !create.storage && !create.columns_list)
    {
        auto database = DatabaseCatalog::instance().getDatabase(database_name);
        if (database->shouldReplicateQuery(getContext(), query_ptr))
        {
            auto guard = DatabaseCatalog::instance().getDDLGuard(database_name, create.getTable());
            create.setDatabase(database_name);
            guard->releaseTableLock();