Does Django automatically generate indexes for foreign keys columns?
Solution 1:
Django automatically creates an index for all models.ForeignKey columns.
From Django documentation:
A database index is automatically created on the
ForeignKey. You can disable this by settingdb_indextoFalse. You may want to avoid the overhead of an index if you are creating a foreign key for consistency rather than joins, or if you will be creating an alternative index like a partial or multiple column index.