修改消息相关索引

video-gen-api/app/models/notification_read.py

@@ -1,4 +1,4 @@
-from sqlalchemy import String, ForeignKey
+from sqlalchemy import String, ForeignKey, Index, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column
 
 from app.models.base import Base, TimestampMixin
@@ -12,3 +12,8 @@ class NotificationRead(Base, TimestampMixin):
         String(32), ForeignKey("notifications.id"), index=True
     )
     user_id: Mapped[str] = mapped_column(String(32), index=True)
+
+    __table_args__ = (
+        UniqueConstraint('notification_id', 'user_id', name='uq_notif_read_user'),
+        Index('idx_notif_read_user_notif', 'user_id', 'notification_id'),
+    )