如何在Go中使用`pq.Scan`扫描空数组？ [重复]

I'm creating a simple resp API in Go which queries from a PostgreSQL database. Since some of the results are a array I'm using pq.Array to convert it however if the array is empty I get the following error

Scan error on column index 5, name "detailed_muscle_group": pq: parsing array element index 0: cannot convert nil to string

I understand it can't convert from a empty array but I don't know how to handle this.

Here is the controller for it:

package controllers

import (
    "exercisedb-api/config"
    "exercisedb-api/models"
    "github.com/lib/pq"
)

func GetExercises() []models.Exercise {
    db := config.OpenDB()
    exercises := []models.Exercise{}

    rows, err := db.Query(`SELECT exercise, dificulty, type, mechanic, equipment, detailed_muscle_group FROM overview LIMIT 10;`)

    if err != nil {
        panic(err)
    }


    for rows.Next() {
        exercise := models.Exercise{}

        err = rows.Scan(&exercise.Title, &exercise.Difficulty, &exercise.Type, &exercise.Mechanic, pq.Array(&exercise.Equipment), pq.Array(&exercise.DetailedMuscleGroup))
        if err != nil {
            panic(err)
        }
        exercises = append(exercises,exercise)

    }

    err = rows.Err()
    if err != nil {
        panic(err)
    }

    return exercises
}

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