Add missing indices

It should potentially improve performance of some queries a bit.
No benchmarking is done, just those fields are used in various queries.

closes #6742
https://pulp.plan.io/issues/6742

CHANGES/6742.misc

@@ -0,0 +1 @@
+Added some indices used in various queries.

pulp_2to3_migration/app/migrations/0028_create_missing_indices.py

@@ -0,0 +1,46 @@
+# Generated by Django 2.2.19 on 2021-03-30 17:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pulp_2to3_migration', '0027_pulp2repocontent_created_index'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='pulp2content',
+            index=models.Index(fields=['pulp2_last_updated'], name='pulp_2to3_m_pulp2_l_c8b0d6_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2distributor',
+            index=models.Index(fields=['pulp2_last_updated'], name='pulp_2to3_m_pulp2_l_2c5996_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2distributor',
+            index=models.Index(fields=['pulp2_repo_id'], name='pulp_2to3_m_pulp2_r_77bd32_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2importer',
+            index=models.Index(fields=['pulp2_last_updated'], name='pulp_2to3_m_pulp2_l_2bbfde_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2repository',
+            index=models.Index(fields=['pulp2_last_unit_added'], name='pulp_2to3_m_pulp2_l_270629_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2repository',
+            index=models.Index(fields=['pulp2_last_unit_removed'], name='pulp_2to3_m_pulp2_l_2de33d_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2repository',
+            index=models.Index(fields=['pulp2_repo_id'], name='pulp_2to3_m_pulp2_r_68b419_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='pulp2importer',
+            index=models.Index(fields=['pulp2_repo_id'], name='pulp_2to3_m_pulp2_r_46adaf_idx'),
+        ),
+
+    ]

pulp_2to3_migration/app/models/content.py

@@ -49,6 +49,7 @@ class Meta:
         ]
         indexes = [
             models.Index(fields=['pulp2_content_type_id']),
+            models.Index(fields=['pulp2_last_updated']),
         ]
 
 

pulp_2to3_migration/app/models/repository.py

@@ -65,6 +65,9 @@ class Pulp2Repository(BaseModel):
     class Meta:
         indexes = [
             models.Index(fields=['pulp2_repo_type']),
+            models.Index(fields=['pulp2_last_unit_added']),
+            models.Index(fields=['pulp2_last_unit_removed']),
+            models.Index(fields=['pulp2_repo_id']),
         ]
 
 
@@ -128,6 +131,8 @@ class Pulp2Importer(BaseModel):
     class Meta:
         indexes = [
             models.Index(fields=['pulp2_type_id']),
+            models.Index(fields=['pulp2_last_updated']),
+            models.Index(fields=['pulp2_repo_id']),
         ]
 
 
@@ -178,4 +183,6 @@ class Meta:
         unique_together = ('pulp2_object_id',)
         indexes = [
             models.Index(fields=['pulp2_type_id']),
+            models.Index(fields=['pulp2_last_updated']),
+            models.Index(fields=['pulp2_repo_id']),
         ]