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core: create indices on chat_items for faster pagination (#927)

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JRoberts
2022-08-11 15:48:47 +04:00
committed by GitHub
parent 622ab549a3
commit cc498572cd
4 changed files with 28 additions and 1 deletions
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simplex-chat.cabal
+1
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@@ -42,6 +42,7 @@ library
Simplex.Chat.Migrations.M20220626_auto_reply
Simplex.Chat.Migrations.M20220702_calls
Simplex.Chat.Migrations.M20220715_groups_chat_item_id
Simplex.Chat.Migrations.M20220811_chat_items_indices
Simplex.Chat.Mobile
Simplex.Chat.Options
Simplex.Chat.Protocol
src/Simplex/Chat/Migrations/M20220811_chat_items_indices.hs
+13
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@@ -0,0 +1,13 @@
{-# LANGUAGE QuasiQuotes #-}
module Simplex.Chat.Migrations.M20220811_chat_items_indices where
import Database.SQLite.Simple (Query)
import Database.SQLite.Simple.QQ (sql)
m20220811_chat_items_indices :: Query
m20220811_chat_items_indices =
[sql|
CREATE INDEX idx_chat_items_groups ON chat_items(user_id, group_id, item_ts, chat_item_id);
CREATE INDEX idx_chat_items_contacts ON chat_items(user_id, contact_id, chat_item_id);
|]
src/Simplex/Chat/Migrations/chat_schema.sql
+11
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@@ -382,3 +382,14 @@ CREATE TABLE calls(
created_at TEXT NOT NULL DEFAULT(datetime('now')),
updated_at TEXT NOT NULL DEFAULT(datetime('now'))
);
CREATE INDEX idx_chat_items_groups ON chat_items(
user_id,
group_id,
item_ts,
chat_item_id
);
CREATE INDEX idx_chat_items_contacts ON chat_items(
user_id,
contact_id,
chat_item_id
);
src/Simplex/Chat/Store.hs
+3 -1
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@@ -221,6 +221,7 @@ import Simplex.Chat.Migrations.M20220514_profiles_user_id
import Simplex.Chat.Migrations.M20220626_auto_reply
import Simplex.Chat.Migrations.M20220702_calls
import Simplex.Chat.Migrations.M20220715_groups_chat_item_id
import Simplex.Chat.Migrations.M20220811_chat_items_indices
import Simplex.Chat.Protocol
import Simplex.Chat.Types
import Simplex.Messaging.Agent.Protocol (AgentMsgId, ConnId, InvitationId, MsgMeta (..))
@@ -248,7 +249,8 @@ schemaMigrations =
("20220514_profiles_user_id", m20220514_profiles_user_id),
("20220626_auto_reply", m20220626_auto_reply),
("20220702_calls", m20220702_calls),
("20220715_groups_chat_item_id", m20220715_groups_chat_item_id)
("20220715_groups_chat_item_id", m20220715_groups_chat_item_id),
("20220811_chat_items_indices", m20220811_chat_items_indices)
]
-- | The list of migrations in ascending order by date