**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`.

{
    ASTs constraints_data;
    if (constraints)
        for (const auto & constraint : constraints->children)
            constraints_data.push_back(constraint->clone());
    return ConstraintsDescription{constraints_data};
}
InterpreterCreateQuery::TableProperties InterpreterCreateQuery::getTablePropertiesAndNormalizeCreateQuery(ASTCreateQuery & create) const