From 54190ffff99675cef40dd2f6405ae172dd599f35 Mon Sep 17 00:00:00 2001
From: JRoberts <8711996+jr-simplex@users.noreply.github.com>
Date: Fri, 30 Dec 2022 16:34:42 +0400
Subject: [PATCH] core: add db indexes for faster group deletion (#1664)

---
 simplex-chat.cabal                            |  1 +
 src/Simplex/Chat/Migrations/M20221230_idxs.hs | 14 ++++++++++++++
 src/Simplex/Chat/Migrations/chat_schema.sql   |  5 +++++
 src/Simplex/Chat/Store.hs                     |  4 +++-
 4 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 src/Simplex/Chat/Migrations/M20221230_idxs.hs

diff --git a/simplex-chat.cabal b/simplex-chat.cabal
index 8d1b05cb1e..22948a6215 100644
--- a/simplex-chat.cabal
+++ b/simplex-chat.cabal
@@ -72,6 +72,7 @@ library
       Simplex.Chat.Migrations.M20221214_live_message
       Simplex.Chat.Migrations.M20221222_chat_ts
       Simplex.Chat.Migrations.M20221223_idx_chat_items_item_status
+      Simplex.Chat.Migrations.M20221230_idxs
       Simplex.Chat.Mobile
       Simplex.Chat.Options
       Simplex.Chat.ProfileGenerator
diff --git a/src/Simplex/Chat/Migrations/M20221230_idxs.hs b/src/Simplex/Chat/Migrations/M20221230_idxs.hs
new file mode 100644
index 0000000000..dbe84357aa
--- /dev/null
+++ b/src/Simplex/Chat/Migrations/M20221230_idxs.hs
@@ -0,0 +1,14 @@
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Chat.Migrations.M20221230_idxs where
+
+import Database.SQLite.Simple (Query)
+import Database.SQLite.Simple.QQ (sql)
+
+m20221230_idxs :: Query
+m20221230_idxs =
+  [sql|
+CREATE INDEX idx_connections_group_member ON connections(user_id, group_member_id);
+
+CREATE INDEX idx_commands_connection_id ON commands(connection_id);
+|]
diff --git a/src/Simplex/Chat/Migrations/chat_schema.sql b/src/Simplex/Chat/Migrations/chat_schema.sql
index 233ec8627a..8ef2acabfa 100644
--- a/src/Simplex/Chat/Migrations/chat_schema.sql
+++ b/src/Simplex/Chat/Migrations/chat_schema.sql
@@ -463,3 +463,8 @@ CREATE INDEX idx_chat_items_group_member_id ON chat_items(group_member_id);
 CREATE INDEX idx_chat_items_contact_id ON chat_items(contact_id);
 CREATE INDEX idx_chat_items_timed_delete_at ON chat_items(timed_delete_at);
 CREATE INDEX idx_chat_items_item_status ON chat_items(item_status);
+CREATE INDEX idx_connections_group_member ON connections(
+  user_id,
+  group_member_id
+);
+CREATE INDEX idx_commands_connection_id ON commands(connection_id);
diff --git a/src/Simplex/Chat/Store.hs b/src/Simplex/Chat/Store.hs
index d2889174e6..796ba00530 100644
--- a/src/Simplex/Chat/Store.hs
+++ b/src/Simplex/Chat/Store.hs
@@ -323,6 +323,7 @@ import Simplex.Chat.Migrations.M20221212_chat_items_timed
 import Simplex.Chat.Migrations.M20221214_live_message
 import Simplex.Chat.Migrations.M20221222_chat_ts
 import Simplex.Chat.Migrations.M20221223_idx_chat_items_item_status
+import Simplex.Chat.Migrations.M20221230_idxs
 import Simplex.Chat.Protocol
 import Simplex.Chat.Types
 import Simplex.Chat.Util (week)
@@ -381,7 +382,8 @@ schemaMigrations =
     ("20221212_chat_items_timed", m20221212_chat_items_timed),
     ("20221214_live_message", m20221214_live_message),
     ("20221222_chat_ts", m20221222_chat_ts),
-    ("20221223_idx_chat_items_item_status", m20221223_idx_chat_items_item_status)
+    ("20221223_idx_chat_items_item_status", m20221223_idx_chat_items_item_status),
+    ("20221230_idxs", m20221230_idxs)
   ]
 
 -- | The list of migrations in ascending order by date