core: preset simplex contact (#3321)

src/Simplex/Chat/Migrations/M20231107_indexes.hs

@@ -0,0 +1,18 @@
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Chat.Migrations.M20231107_indexes where
+
+import Database.SQLite.Simple (Query)
+import Database.SQLite.Simple.QQ (sql)
+
+m20231107_indexes :: Query
+m20231107_indexes =
+  [sql|
+CREATE INDEX idx_contact_profiles_contact_link ON contact_profiles(user_id, contact_link);
+|]
+
+down_m20231107_indexes :: Query
+down_m20231107_indexes =
+  [sql|
+DROP INDEX idx_contact_profiles_contact_link;
+|]

src/Simplex/Chat/Migrations/chat_schema.sql

@@ -748,3 +748,7 @@ CREATE INDEX idx_connections_via_contact_uri_hash ON connections(
   user_id,
   via_contact_uri_hash
 );
+CREATE INDEX idx_contact_profiles_contact_link ON contact_profiles(
+  user_id,
+  contact_link
+);