Add a GIN index to the pulp_labels field

CHANGES/7477.bugfix

@@ -0,0 +1,2 @@
+Added a GIN index to the pulp_labels field on Content and updated label filtering to use
+GIN-optimized lookups, improving query performance for label-based content searches.

pulpcore/app/migrations/0146_content_pulp_labels_gin.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.7 on 2026-03-17 18:32
+
+import django.contrib.postgres.indexes
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0145_domainize_import_export'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='content',
+            index=django.contrib.postgres.indexes.GinIndex(fields=['pulp_labels'], name='pulp_labels_gin_index'),
+        ),
+    ]

pulpcore/app/models/content.py

@@ -18,6 +18,7 @@
 
 from django.conf import settings
 from django.contrib.postgres.fields import HStoreField
+from django.contrib.postgres.indexes import GinIndex
 from django.core import validators
 from django.db import IntegrityError, models, transaction
 from django.forms.models import model_to_dict
@@ -552,6 +553,9 @@ class Content(MasterModel, QueryMixin):
     class Meta:
         verbose_name_plural = "content"
         unique_together = ()
+        indexes = [
+            GinIndex(fields=["pulp_labels"], name="pulp_labels_gin_index"),
+        ]
         permissions = [
             ("manage_content_labels", "Can manage content-labels"),
         ]

pulpcore/app/viewsets/custom_filters.py

@@ -323,10 +323,10 @@ def filter(self, qs, value):
                 raise DRFValidationError(_("Cannot use an operator with '{}'.").format(key))
 
             if op == "=":
-                qs = qs.filter(**{f"{field_name}__{key}": val})
+                qs = qs.filter(**{f"{field_name}__contains": {key: val}})
             elif op == "!=":
                 qs = qs.filter(**{f"{field_name}__has_key": key}).exclude(
-                    **{f"{field_name}__{key}": val}
+                    **{f"{field_name}__contains": {key: val}}
                 )
             elif op == "~":
                 qs = qs.filter(**{f"{field_name}__{key}__icontains": val})