sqlalchemy-postgres

To fix SQLAlchemy 2.x async pattern mistakes, transition from session.query() to select() statements, ensure proper AsyncSession dependency injection, and apply correct transaction handling for your PostgreSQL codebase.

Avoid N+1 queries in SQLAlchemy 2.x by implementing proper eager loading strategies for relationship loading. This ensures related data is fetched efficiently within async sessions without triggering individual queries per item.

Migrate from session.query() to select() by adopting the modern SQLAlchemy 2.x API patterns. Replace legacy query calls with select() statements and execute them properly through async sessions for PostgreSQL.

Yes, it covers Alembic migration best practices including generator defaults and migration checks. This helps prevent migration gotchas and ensures your database schema transitions correctly with SQLAlchemy 2.x.

SQLAlchemy 2.x async sessions drop transaction state when dependency injection for AsyncSession is improperly configured. Ensure proper transaction handling and session management to maintain state during PostgreSQL operations.

Yes, you can use select() style queries for relationship loading in async SQLAlchemy. Apply proper eager loading strategies to efficiently load related objects and prevent N+1 queries in PostgreSQL.