**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`.

{
    switch (default_table_engine)
    {
        case DefaultTableEngine::Log:
            return "Log";
        case DefaultTableEngine::StripeLog:
            return "StripeLog";
        case DefaultTableEngine::MergeTree:
            return "MergeTree";
        case DefaultTableEngine::ReplacingMergeTree:
            return "ReplacingMergeTree";
        case DefaultTableEngine::ReplicatedMergeTree:
            return "ReplicatedMergeTree";
        case DefaultTableEngine::ReplicatedReplacingMergeTree:
            return "ReplicatedReplacingMergeTree";
        case DefaultTableEngine::Memory:
            return "Memory";
        default:
            throw Exception("default_table_engine is set to unknown value", ErrorCodes::LOGICAL_ERROR);
    }
}
void InterpreterCreateQuery::setDefaultTableEngine(ASTStorage & storage, ContextPtr local_context)