[Update] 优化session 索引 is_finished (#3697)

apps/terminal/migrations/0021_auto_20200213_1316.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.10 on 2020-02-13 05:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('terminal', '0020_auto_20191218_1721'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='session',
+            name='is_finished',
+            field=models.BooleanField(db_index=True, default=False),
+        ),
+    ]

apps/terminal/models.py

@@ -181,7 +181,7 @@ class Session(OrgModelMixin):
     system_user_id = models.CharField(blank=True, default='', max_length=36, db_index=True)
     login_from = models.CharField(max_length=2, choices=LOGIN_FROM_CHOICES, default="ST")
     remote_addr = models.CharField(max_length=128, verbose_name=_("Remote addr"), blank=True, null=True)
-    is_finished = models.BooleanField(default=False)
+    is_finished = models.BooleanField(default=False, db_index=True)
     has_replay = models.BooleanField(default=False, verbose_name=_("Replay"))
     has_command = models.BooleanField(default=False, verbose_name=_("Command"))
     terminal = models.ForeignKey(Terminal, null=True, on_delete=models.SET_NULL)