diff --git a/.gitignore b/.gitignore
index e6f47dd..22adafb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,9 +19,6 @@ test/
 *.log.*
 *.sig
 
-pkg/
-src/
-
 ### VisualStudio template
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 72d1675..6707e12 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -11,13 +11,45 @@ datasource db {
 }
 
 model Message {
-  id              Int          @id @default(autoincrement())
-  roomId          Int
-  senderId        Int
+  id              Int         @id @default(autoincrement())
+  qqRoomId        Int
+  qqSenderId      Int
   time            DateTime
   brief           String
   seq             Int
   rand            Int
   pktnum          Int
+  tgChatId        Int
+  tgMsgId         Int
+
+  @@unique([qqRoomId, qqSenderId, seq, rand, pktnum])
+  @@unique([tgChatId, tgMsgId])
 }
 
+model ForwardPair {
+  id              Int         @id @default(autoincrement())
+  qqRoomId        Int         @unique
+  tgChatId        Int         @unique
+}
+
+model File {
+  id              Int         @id @default(autoincrement())
+  groupId         Int
+  fileId          String
+  info            String
+
+  @@unique([groupId, fileId])
+}
+
+model FlashPhoto {
+  id              Int         @id @default(autoincrement())
+  photoMd5        String
+}
+
+model FlashPhotoView {
+  id              Int         @id @default(autoincrement())
+  flashPhotoId    Int
+  viewerId        Int
+
+  @@unique([flashPhotoId, viewerId])
+}