This issue happens on production of one user that enabled Sentry:

![Screenshot_20210303_002028](https://user-images.githubusercontent.com/18581488/109716945-7f9a1200-7bb6-11eb-8cf4-1080ad535d18.png)

Build id: 49938CCB63EE2A4E16CF0528307EE15F08469219.
default_expr_list->children.emplace_back(setAlias(col_decl.default_expression->clone(), col_decl.name));
        }
    }
    Block defaults_sample_block;
    
    if (!default_expr_list->children.empty())
        defaults_sample_block = validateColumnsDefaultsAndGetSampleBlock(default_expr_list, column_names_and_types, context);
    ColumnsDescription res;
    auto name_type_it = column_names_and_types.begin();
    for (auto ast_it = columns_ast.children.begin(); ast_it != columns_ast.children.end(); ++ast_it, ++name_type_it)
    {
        ColumnDescription column;
        auto & col_decl = (*ast_it)->as<ASTColumnDeclaration &>();
        column.name = col_decl.name;
        if (col_decl.default_expression)
        {
            ASTPtr default_expr = col_decl.default_expression->clone();
            if (col_decl.type)
                column.type = name_type_it->type;
            else
                column.type = defaults_sample_block.getByName(column.name).type;
            column.default_desc.kind = columnDefaultKindFromString(col_decl.default_specifier);
            column.default_desc.expression = default_expr;
        }
        else if (col_decl.type)
            column.type = name_type_it->type;
        else
            throw Exception();
        if (col_decl.comment)
            column.comment = col_decl.comment->as<ASTLiteral &>().value.get<String>();