This property is a compatibility alias that returns the update timestamp as a POSIX timestamp. It infers whether the database is SQLite using sqlalchemy.inspect to call get_update_timestamp correctly
Close#4334
Co-authored-by: George Weale <gweale@google.com>
PiperOrigin-RevId: 864595914
The migration tool uses synchronous SQLAlchemy engines but users often provide async driver URLs (e.g., postgresql+asyncpg://) since that's what ADK requires at runtime.
This fix:
- Makes `to_sync_url()` public in `_schema_check_utils.py` for reuse
- Updates `migrate_from_sqlalchemy_pickle.py` to convert async URLs
- Updates `migrate_from_sqlalchemy_sqlite.py` to convert async URLs
- Adds comprehensive unit tests for `to_sync_url()` function
- Adds integration test for migration with async driver URLs
Fixes#4176
Co-authored-by: Liang Wu <wuliang@google.com>
PiperOrigin-RevId: 858359061
Final part of https://github.com/google/adk-python/discussions/3605.
This change introduces:
- A new `adk migrate session` CLI command to run database schema upgrades.
- A migration script to upgrade from the old Pickle-based session schema (v0) to the new JSON-based schema (v1).
- A migration runner that orchestrates the upgrade process, handling sequential migrations and using temporary SQLite databases for intermediate steps if needed.
- Unit tests for the v0 to v1 migration.
Co-authored-by: Liang Wu <wuliang@google.com>
PiperOrigin-RevId: 852983323
George WealeandCopybara-Service
Liang WuandCopybara-Service