21.11.3.6
```
cat /etc/clickhouse-server/node.tsv
1,test

cat /etc/clickhouse-server/node_dictionary.xml
<dictionaries>
    <dictionary>
        <name>node</name>
        <source>
            <file>
                <path>/etc/clickhouse-server/node.tsv</path>
                <format>CSV</format>
            </file>
        </source>
        <lifetime>0</lifetime>
        <layout><flat /></layout>
        <structure>
            <id><name>key</name></id>
            <attribute>
                <name>name</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
        </structure>
    </dictionary>
</dictionaries>

create table default.node ( key UInt64, name String ) Engine=Dictionary(node);

select * from default.node;
┌─key─┬─name─┐
│   1 │ test │
└─────┴──────┘

/etc/init.d/clickhouse-server restart

<Error> Application: DB::Exception: Cannot attach 1 tables due to cyclic dependencies. See server log for details.
<Information> Application: shutting down
```
{
        if (literal->value.getType() != Field::Types::String)
            return;
        auto maybe_qualified_name = QualifiedTableName::tryParseFromString(literal->value.get<String>());
        
        if (!maybe_qualified_name)
            return;
        qualified_name = std::move(*maybe_qualified_name);
    }
    else if (const auto * identifier = dynamic_cast<const ASTIdentifier *>(arg))
    {
        
        auto table_identifier = identifier->createTable();
        
        if (!table_identifier)
            return;
        qualified_name.database = table_identifier->getDatabaseName();
        qualified_name.table = table_identifier->shortName();
    }
    else
    {
        assert(false);
        return;
    }
    if (qualified_name.database.empty())
        qualified_name.database = data.default_database;
    data.dependencies.emplace(std::move(qualified_name));
}
}