```
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 :)`
if (options.count("config-file"))
        config().setString("config-file", options["config-file"].as<std::string>());
    if (options.count("queries-file"))
        queries_files = options["queries-file"].as<std::vector<std::string>>();
    if (options.count("multiline"))
        config().setBool("multiline", true);
    if (options.count("multiquery"))
        config().setBool("multiquery", true);
    if (options.count("ignore-error"))
        config().setBool("ignore-error", true);
    if (options.count("format"))
        config().setString("format", options["format"].as<std::string>());
    if (options.count("vertical"))
        config().setBool("vertical", true);
    if (options.count("stacktrace"))
        config().setBool("stacktrace", true);
    if (options.count("print-profile-events"))
        config().setBool("print-profile-events", true);
    if (options.count("profile-events-delay-ms"))
        config().setInt("profile-events-delay-ms", options["profile-events-delay-ms"].as<UInt64>());
    if (options.count("progress"))
        config().setBool("progress", true);
    if (options.count("echo"))
        config().setBool("echo", true);
    if (options.count("disable_suggestion"))
        config().setBool("disable_suggestion", true);
    if (options.count("suggestion_limit"))
        config().setInt("suggestion_limit", options["suggestion_limit"].as<int>());
    if (options.count("highlight"))
        config().setBool("highlight", options["highlight"].as<bool>());