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    <p>Say your model is 'Shop'</p> <pre><code>class Shop(models.Model): street = models.CharField(max_length=150) city = models.CharField(max_length=150) # some of your models may have explicit ordering class Meta: ordering = ('city') </code></pre> <p>Since you may have the <code>Meta</code> class <code>ordering</code> attribute set, you can use <code>order_by()</code> without parameters to clear any ordering when using <code>distinct()</code>. See the documentation under <a href="https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by" rel="noreferrer"><code>order_by</code>()</a></p> <blockquote> <p>If you don’t want any ordering to be applied to a query, not even the default ordering, call order_by() with no parameters.</p> </blockquote> <p>and <a href="https://docs.djangoproject.com/en/dev/ref/models/querysets/#distinct" rel="noreferrer"><code>distinct()</code></a> in the note where it discusses issues with using <code>distinct()</code> with ordering.</p> <p>To query your DB, you just have to call:</p> <pre><code>models.Shop.objects.order_by().values('city').distinct() # returns a dictionary </code></pre> <p>or</p> <pre><code>models.Shop.objects.order_by().values_list('city').distinct() # returns a list of tuples. </code></pre> <p>You can also add <code>flat=True</code> to <code>values_list</code> to have a flat list.</p> <p>See also: <a href="https://stackoverflow.com/questions/3432673/get-distinct-values-of-queryset-by-field">Get distinct values of Queryset by field</a></p>
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    1. POSelect distinct values from a table field
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    1. COActually that works. However! I couldn't get it to work on all my models. Weidly, it worked on some but not others. For those that have a Meta ordering it doesn't work. So, you have to clear the ordering on the queryset first. models.Shop.objects.order_by().values('city').distinct()
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    2. COIt is important to note that `values_list` doesn't actually return a list. It returns something like a queryset. I found it useful to always use list() around values_list calls.
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    3. CO`values_list` returns ValuesListQuerySet which is an iterator. Casting to list might be handy, but can also strike performance when all rows have to be evaluated at once, especially with large data sets.
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      1. USPeter Kilczuk
 

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