signal-desktop/ts/sql/migrations/52-optimize-stories.ts
2022-03-21 14:21:35 -07:00

38 lines
972 B
TypeScript

// Copyright 2022 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import type { Database } from 'better-sqlite3';
import type { LoggerType } from '../../types/Logging';
export default function updateToSchemaVersion52(
currentVersion: number,
db: Database,
logger: LoggerType
): void {
if (currentVersion >= 52) {
return;
}
db.transaction(() => {
db.exec(
`
-- Create indices that don't have storyId in them so that
-- '_storyIdPredicate' could be optimized.
-- See migration 47
CREATE INDEX messages_conversation_no_story_id ON messages
(conversationId, isStory, received_at, sent_at);
-- See migration 50
CREATE INDEX messages_unread_no_story_id ON messages
(conversationId, readStatus, isStory, received_at, sent_at)
WHERE readStatus IS NOT NULL;
`
);
db.pragma('user_version = 52');
})();
logger.info('updateToSchemaVersion52: success!');
}