return err
	}
	simulateBadConn("db.Exec prepare", &hookPrepareBadConn, dbExec)
	simulateBadConn("db.Exec exec", &hookExecBadConn, dbExec)

	// db.Query
	dbQuery := func() error {
		rows, err := db.Query("SELECT|t1|age,name|")
		if err == nil {
			err = rows.Close()
		}
		return err
	}
	simulateBadConn("db.Query prepare", &hookPrepareBadConn, dbQuery)