```
cat /etc/clickhouse-client/conf.d/propmt.xml
<config>
    <prompt_by_server_display_name>
	    <default>{database}@{host} :) </default>
    </prompt_by_server_display_name>
</config>


cat /etc/clickhouse-server/conf.d/default_database.xml
<?xml version="1.0"?>
<yandex>
    <default_database>dw</default_database>
</yandex>

$ clickhouse-client
ClickHouse client version 21.6.5.37 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 21.6.5 revision 54448.

default@localhost :) select currentDatabase();

SELECT currentDatabase()

Query id: efd2952e-a0d5-4250-be3c-5c3a929d3256

┌─currentDatabase()─┐
│ dw                │
└───────────────────┘
```

now: `default@localhost :)`
expected: `dw@localhost :)`
{
    return boost::replace_all_copy(prompt_by_server_display_name, "{database}", config().getString("database", "default"));
}
void ClientBase::initQueryIdFormats()
{
    if (!query_id_formats.empty())
        return;
    /// Initialize query_id_formats if any
    if (config().has("query_id_formats"))
    {
        Poco::Util::AbstractConfiguration::Keys keys;
        config().keys("query_id_formats", keys);
        for (const auto & name : keys)
            query_id_formats.emplace_back(name + ":", config().getString("query_id_formats." + name));
    }
    if (query_id_formats.empty())
        query_id_formats.emplace_back("Query id:", " {query_id}\n");
}
void ClientBase::runInteractive()