signal-desktop/ts/sql/migrations/72-optimize-call-id-message-lookup.ts

// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only

import type { Database } from '@signalapp/sqlcipher';

export default function updateToSchemaVersion72(db: Database): void {
  db.exec(
    `
    ALTER TABLE messages
      ADD COLUMN callId TEXT
      GENERATED ALWAYS AS (
        json_extract(json, '$.callHistoryDetails.callId')
      );
    ALTER TABLE messages
      ADD COLUMN callMode TEXT
      GENERATED ALWAYS AS (
        json_extract(json, '$.callHistoryDetails.callMode')
      );
    CREATE INDEX messages_call ON messages
      (conversationId, type, callMode, callId);
    `
  );
}