**Use case**

If FixedString is used with more than 256 bytes in size, it is suspicious and most likely indicates misusage.
Forbid this by default and add a setting to override it; ATTACH queries should allow creating tables nevertheless.

See also: `allow_suspicious_low_cardinality_types`.

if (create.table || !create.storage)
            throw Exception(ErrorCodes::INCORRECT_QUERY, "Metadata file {} contains incorrect CREATE DATABASE query", metadata_file_path.string());
        create.attach = true;
        create.attach_short_syntax = true;
        create.setDatabase(database_name);
    }
    else if (!create.storage)
    {
        
        
        if (create.attach)
            throw Exception("Database engine must be specified for ATTACH DATABASE query", ErrorCodes::UNKNOWN_DATABASE_ENGINE);
        auto engine = std::make_shared<ASTFunction>();
        auto storage = std::make_shared<ASTStorage>();
        engine->name = "Atomic";
        engine->no_empty_args = true;
        storage->set(storage->engine, engine);
        create.set(create.storage, storage);
    }
    else if ((create.columns_list
              && ((create.columns_list->indices && !create.columns_list->indices->children.empty())
                  || (create.columns_list->projections && !create.columns_list->projections->children.empty()))))
    {
        
        throw Exception(ErrorCodes::UNKNOWN_DATABASE_ENGINE, "Unknown database engine: {}", serializeAST(*create.storage));
    }
    if (create.storage && !create.storage->engine)
        throw Exception(ErrorCodes::INCORRECT_QUERY, "Database engine must be specified");
    if (create.storage->engine->name == "Atomic"
        || create.storage->engine->name == "Replicated"