⚡️ Add db index in FoiMessage.email_message_id

froide/foirequest/migrations/0061_foimessage_foirequest__email_m_304d80_idx.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.0.8 on 2022-12-19 13:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("foirequest", "0060_foirequest_banner"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="foimessage",
+            index=models.Index(
+                fields=["email_message_id"], name="foirequest__email_m_304d80_idx"
+            ),
+        ),
+    ]

froide/foirequest/models/message.py

@@ -168,6 +168,8 @@ class Meta:
         verbose_name = _("Freedom of Information Message")
         verbose_name_plural = _("Freedom of Information Messages")
 
+        indexes = [models.Index(fields=["email_message_id"])]
+
     def __str__(self):
         return _("Message in '%(request)s' at %(time)s") % {
             "request": self.request,