Fixed #31777 -- Added support for database collations to Char/TextFields.

Thanks Simon Charette and Mariusz Felisiak for reviews.

tests/inspectdb/models.py

@@ -1,4 +1,4 @@
-from django.db import models
+from django.db import connection, models
 
 
 class People(models.Model):
@@ -79,6 +79,23 @@ class JSONFieldColumnType(models.Model):
         }
 
 
+test_collation = connection.features.test_collations.get('non_default')
+
+
+class CharFieldDbCollation(models.Model):
+    char_field = models.CharField(max_length=10, db_collation=test_collation)
+
+    class Meta:
+        required_db_features = {'supports_collation_on_charfield'}
+
+
+class TextFieldDbCollation(models.Model):
+    text_field = models.TextField(db_collation=test_collation)
+
+    class Meta:
+        required_db_features = {'supports_collation_on_textfield'}
+
+
 class UniqueTogether(models.Model):
     field1 = models.IntegerField()
     field2 = models.CharField(max_length=10)