CREATE TABLE ... **EMPTY** AS SELECT

**Use case**

Create a table with the same structure as SELECT query returns but don't fill it.

**Describe alternatives you've considered**

CREATE TABLE ... AS DESCRIBE (SELECT ...)

\- more consistent but also more clunky.
const InterpreterCreateQuery::TableProperties & properties)
{
    std::unique_ptr<DDLGuard> guard;
    String data_path;
    DatabasePtr database;
    bool need_add_to_database = !create.temporary;
    if (need_add_to_database)
    {
        /** If the request specifies IF NOT EXISTS, we allow concurrent CREATE queries (which do nothing).
          * If table doesn't exist, one thread is creating table, while others wait in DDLGuard.
          */
        guard = DatabaseCatalog::instance().getDDLGuard(create.getDatabase(), create.getTable());
        database = DatabaseCatalog::instance().getDatabase(create.getDatabase());
        assertOrSetUUID(create, database);
        String storage_name = create.is_dictionary ? "Dictionary" : "Table";
        auto storage_already_exists_error_code = create.is_dictionary ? ErrorCodes::DICTIONARY_ALREADY_EXISTS : ErrorCodes::TABLE_ALREADY_EXISTS;
        
        if (database->isTableExist(create.getTable(), getContext()))
        {
            
            if (create.if_not_exists)
                return false;
            else if (create.replace_view)
            {
                
                auto drop_ast = std::make_shared<ASTDropQuery>();
                drop_ast->setDatabase(create.getDatabase());
                drop_ast->setTable(create.getTable());
                drop_ast->no_ddl_lock = true;