[v5.2.2] Significantly optimize performance for fetching leaderboards (#642)

* Significantly optimize performance for fetching leaderboards

* v5.2.2

* bump ver

Author: cmyui

migrations/base.sql

@@ -254,7 +254,8 @@ create index scores_userid_index
 	on scores (userid);
 create index scores_online_checksum_index
 	on scores (online_checksum);
-
+create index scores_fetch_leaderboard_generic_index
+	on scores (map_md5, status, mode);
 
 create table startups
 (

migrations/migrations.sql

@@ -471,3 +471,7 @@ create index users_clan_priv_index
 	on users (clan_priv);
 create index users_country_index
 	on users (country);
+
+# v5.2.2
+create index scores_fetch_leaderboard_generic_index
+	on scores (map_md5, status, mode);

pyproject.toml

@@ -34,7 +34,7 @@ profile = "black"
 
 [tool.poetry]
 name = "bancho-py"
-version = "5.2.1"
+version = "5.2.2"
 description = "An osu! server implementation optimized for maintainability in modern python"
 authors = ["Akatsuki Team"]
 license = "MIT"