Added some additional db indexes

gameserver/models/contest.py

@@ -1,15 +1,11 @@
 from datetime import timedelta
 
 from django.apps import apps
-from django.contrib.auth.models import Permission
-from django.contrib.contenttypes.models import ContentType
 from django.core.cache import cache
 from django.core.cache.utils import make_template_fragment_key
 from django.core.validators import MinValueValidator
 from django.db import models
-from django.db.models import Count, F, Max, Min, OuterRef, Q, Subquery, Sum
-from django.db.models.expressions import Window
-from django.db.models.functions import Coalesce, Rank
+from django.db.models import Min, Q
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.functional import cached_property
@@ -49,7 +45,7 @@ def __init__(self, *args, **kwargs):
 
     tags = models.ManyToManyField(ContestTag, blank=True)
 
-    is_public = models.BooleanField(default=True)
+    is_public = models.BooleanField(default=True, db_index=True)
     max_team_size = models.PositiveSmallIntegerField(
         null=True, blank=True, validators=[MinValueValidator(1)]
     )

gameserver/models/problem.py

@@ -47,7 +47,7 @@ class Problem(models.Model):
     challenge_spec = models.JSONField(null=True, blank=True)
     log_submission_content = models.BooleanField(default=False)
 
-    is_public = models.BooleanField(default=False)
+    is_public = models.BooleanField(default=False, db_index=True)
 
     date_created = models.DateTimeField(auto_now_add=True)
 

gameserver/models/submission.py

@@ -15,11 +15,13 @@ class Submission(models.Model):
         blank=True,
         related_name="submissions",
         related_query_name="submission",
+        db_index=True,
     )
     problem = models.ForeignKey(
         "Problem",
         on_delete=models.CASCADE,
         related_name="submissions",
+        db_index=True,
         related_query_name="submission",
     )
     is_correct = models.BooleanField(default=False, db_index=True)