<snip> std::string md5Hash = ""; std::string query_str = "select * from hash where path = \"" + filePath + "\""; auto query_results = osquery::SQL(query_str); if(query_results.rows().size() > 0) { md5Hash = query_results.rows().back().at("md5"); LOG(INFO) << "md5Hash::: " << md5Hash; } </snip>