This bad boy will open a Postgres plan visualizer in your browser (Mac) for the given query

viewplan.go

func ViewPlan(ctx context.Context, db sqler.Queryer, s string, params ...interface{}) {
	explain, err := func() (string, error) {
		rows, err := db.Query(ctx, `EXPLAIN (ANALYZE, COSTS, VERBOSE, BUFFERS, FORMAT JSON) `+s, params...)
		if err != nil {
			return "", err
		}
		defer rows.Close()
		var explain strings.Builder
		for rows.Next() {
			var v string
			err := rows.Scan(&v)
			if err != nil {
				return "", err

			}
			fmt.Fprintln(&explain, v)
		}
		return explain.String(), nil
	}()
	if err != nil {
		fmt.Println("ExplainAnalyze:", err)
		return
	}
	go func() (err error) {
		defer func() {
			if err != nil {
				fmt.Println(err)
			}
		}()

		body, _ := json.Marshal(map[string]interface{}{
			"plan":  explain,
			"query": s,
		})
		resp, err := (&http.Client{
			CheckRedirect: func(req *http.Request, via []*http.Request) error {
				return http.ErrUseLastResponse
			},
		}).Post(
			"https://explain.dalibo.com/new",
			"application/json", bytes.NewReader(body),
		)
		if err != nil {
			return err
		}
		defer resp.Body.Close()

		err = exec.Command("open", resp.Header.Get("Location")).Run()
		if err != nil {
			return err
		}

		return nil
	}()
}