pgpingpgping ✅ How to delete a PGPing result from PostgreSQL's libpq? pgping,PGPing PQpingParams; 该函数返回下列值之一: PQPING_OK 服务器&emspPGPing { PQPING_OK, PQPING_REJECT, PQPING_NO_RESPONSE, PQPING_NO_ATTEMPT } Referenced by main() { PGconn *conn = PQconnectStartParams(keywords, values,