title: django.db.utils.ProgrammingError: column "Price" of relation "ogs_features_product" does not exist
body: <p>I am currenltly running django 3.1</p>
  <p>I am trying to migrate my models.py file to postgres database. I was able to makemigrations, but when I did python manage.py migrate I got the following error.</p>
  <p>Previously, I had a &quot;Price&quot; table which included &quot;Product_ID&quot; of &quot;Product&quot; table. After having issues with my models.py id's (I have previously changed my current primary keys names you see to just id, and that caused the whole confusion), I went back to a previous version of my code that did not include &quot;Price&quot; table.
  I was able to hop on the local server and everything, but I cannot access Customers in admin page because Customer_ID does not exist for some reason (This is in addition to not being able to migrate because of the &quot;Price&quot; table error!)</p>
  <p>Is their a way to completely clean all the migrations.</p>
  <p>models.py file</p>
  <pre><code>from django.db import models
  from django.contrib.auth.models import User
  
  # Create your models here.
  
  #strong entities + many-to-one + many-to-many
  class Customer(models.Model):
      Customer_ID = models.CharField(max_length = 9, primary_key = True)
      addressID = models.ManyToManyField('Address')
      First_name = models.CharField(max_length = 20, null = True)
      Middle_initial = models.CharField(max_length = 1, null = True)
      Last_name = models.CharField(max_length = 20, null = True)
      Account_Balance = models.FloatField(null = True)
      def __str__(self):
          return self.First_name + ' ' + self.Last_name
  
  class Address(models.Model):
      Address_Title = models.CharField(max_length = 20, null = True)
      addressID = models.CharField(max_length = 9, primary_key = True)
      Street_number = models.CharField(max_length = 20, null = True)
      Street_name = models.CharField(max_length = 20, null = True)
      Apartment_number = models.CharField(max_length = 5, null = True)
      zipcode = models.CharField(max_length = 5, null = True)
      def __str__(self):
          return self.Address_Title
  
  class Credit_Card(models.Model):
      Credit_Card_Number = models.CharField(max_length = 16, primary_key = True)
      CVV = models.DecimalField(decimal_places = 0, max_digits = 4, null = True)
      Expiration_Date = models.CharField(max_length = 10, null = True)
      Customer_Name = models.ForeignKey('Customer', on_delete=models.CASCADE, null = True)
      addressID = models.ManyToManyField('Address')
      def __str__(self):
          return self.Credit_Card_Number
  
  class Order(models.Model):
      STATUS = (('Pending', 'Pending'), ('Out for delivery', 'Out for delivery'),('Delivered', 'Delivered'))
      Order_Number = models.CharField(max_length = 10, primary_key = True)
      Customer_Name = models.ForeignKey('Customer', on_delete=models.CASCADE, null = True)
      Credit_Card_Number = models.OneToOneField('Credit_Card', on_delete=models.CASCADE, null = True)
      Total_Price =  models.FloatField(null = True)
      status = models.CharField(max_length = 200, null = True, choices = STATUS)
      def __str__(self):
          return self.status
  
  class Grocery_Store(models.Model):
      Grocery_Store_ID = models.CharField(max_length = 10, primary_key = True)
      addressID = models.ForeignKey('Address', on_delete=models.CASCADE)
      Grocery_Store_Name = models.CharField(max_length = 20)
      Warehouse = models.ManyToManyField('Warehouse')
      def __str__(self):
          return self.Grocery_Store_Name
  
  class Product(models.Model):
      CATEGORY = (('Food', 'Food'), ('Drink', 'Drink'))
      Product_ID = models.CharField(max_length = 10, primary_key = True)
      Product_Name = models.CharField(max_length = 100, null = True)
      Quantity = models.IntegerField(null = True)
      Size = models.FloatField(null = True)
      Category = models.CharField(max_length = 10, null = True, choices = CATEGORY)
      Nutritional_info = models.CharField(max_length = 200)
      Product_Image = models.ImageField(null = True, blank = True)
      Grocery_Store = models.ForeignKey('Grocery_Store', on_delete=models.CASCADE, null = True,blank = True)
      Warehouse = models.ForeignKey('Warehouse', on_delete=models.CASCADE, null = True ,blank = True)
      Supplier = models.ForeignKey('Supplier', on_delete=models.CASCADE, null = True)
      def __str__(self):
         return self.Product_Name
      @property
      def imageURL(self):
          try:
              url = self.Product_Image.url
          except:
              url = ''
          return url
  
  class Supplier(models.Model):
      Supplier_ID = models.CharField(max_length = 9, primary_key = True)
      addressID = models.ForeignKey('Address', on_delete=models.CASCADE)
      Supplier_Name = models.CharField(max_length = 20)
      def __str__(self):
          return self.Supplier_Name
  
  class Warehouse(models.Model):
      Warehouse_ID = models.CharField(max_length = 10, primary_key = True)
      addressID = models.ForeignKey('Address', on_delete=models.CASCADE, null = True)
      Warehouse_Name = models.CharField(max_length = 20)
      Size = models.FloatField(null = True)
      available_space = models.FloatField(null = True)
      #Grocery_Store_ID = models.ForeignKey('Grocery_Store', on_delete=models.CASCADE)
      def __str__(self):
          return self.Warehouse_Name
  
  class Staff_Member(models.Model):
      Staff_ID = models.CharField(max_length = 9, primary_key = True)
      addressID = models.ForeignKey('Address', on_delete=models.CASCADE)
      Name = models.CharField(max_length = 20)
      #Phone_Number = models.CharField(max_length = 15)
      Job_title = models.CharField(max_length = 15)
      Grocery_Store_ID = models.ForeignKey('Grocery_Store', on_delete=models.CASCADE)
      def __str__(self):
          return self.Name
  </code></pre>