Support for local deletes synced to all your devices

ts/sql/migrations/1060-addressable-messages-and-sync-tasks.ts

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+// Copyright 2024 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { Database } from '@signalapp/better-sqlite3';
+
+import type { LoggerType } from '../../types/Logging';
+
+export const version = 1060;
+
+export function updateToSchemaVersion1060(
+  currentVersion: number,
+  db: Database,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 1060) {
+    return;
+  }
+
+  db.transaction(() => {
+    db.exec(`
+      ALTER TABLE messages
+        ADD COLUMN isAddressableMessage INTEGER
+        GENERATED ALWAYS AS (
+          type IS NULL
+          OR
+          type IN (
+            'incoming',
+            'outgoing'
+          )
+        );
+     
+      CREATE INDEX messages_by_date_addressable
+        ON messages (
+          conversationId, isAddressableMessage, received_at, sent_at
+      );
+
+      CREATE TABLE syncTasks(
+        id TEXT PRIMARY KEY NOT NULL,
+        attempts INTEGER NOT NULL,
+        createdAt INTEGER NOT NULL,
+        data TEXT NOT NULL,
+        envelopeId TEXT NOT NULL,
+        sentAt INTEGER NOT NULL,
+        type TEXT NOT NULL
+      ) STRICT;
+
+      CREATE INDEX syncTasks_order ON syncTasks (
+        createdAt, sentAt, id
+      )
+    `);
+  })();
+
+  db.pragma('user_version = 1060');
+
+  logger.info('updateToSchemaVersion1060: success!');
+}