Openshift app with flask, sqlalchemy and sqlite - problems with database reverting.storing list/tuples in sqlite database with sqlalchemy.Building queries with a cross database join using SQLalchemy ORM and SQLite.Can Sqlalchemy work well with multiple attached SQLite database files?.Dynamically attaching a SQLite database with SQLAlchemy.This should only attach the "realtime" db if it is actually needed. LazyAttachDatabaseSession.isAttached = TrueĪnd configure the engine as follows: engine: sa.engine.Engine = create_engine(url, Self._engine.execute(f"ATTACH DATABASE '' as 'realtime'") If mapper is not None and issubclass(mapper.class_, _Realtime): Self._logger = logging.getLogger(_name_)ĭef get_bind(self, mapper=None, clause=None): I've tried with the following code where if the SQLALchemy object inherits from a certain base class, then I would attach the database for the session but this does not seem to work as I expect: class LazyAttachDatabaseSession(orm.Session):ĭef _init_(self, theEngine, dbpath, **kw): The problem I have is that there are parts of the application that do not require the partitioned tables and if I load them via an "attach" command in those sessions that don't actually need it, then the attached database is effectively locked thereby eliminating the entire benefit of the partitioning. I've been able to successfully get SQLAlchemy and SQLite to work together for the purpose of vertical partitioning (partitioning certain tables into different databases). GAE, sqlite3.OperationalError: unable to open database file.Sqlite PDO Exception with laravel migration.How to compare text data values that are in a sqlite database?.How implement one-to-many objects database in sqlite for android.Trouble with sql query using group by and order by. ![]()
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