def test_materialized_from_obj_maybe_materialize(db_engine_with_events_table):
from_obj = FromObj(from_obj="events",
name="myquery",
knowledge_date_column='event_date')
from_obj.should_materialize = lambda: True
from_obj.maybe_materialize(db_engine_with_events_table)
assert table_exists(from_obj.table, db_engine_with_events_table)
def preprocess_aggregation(self, aggregation):
create_schema = aggregation.get_create_schema()
if create_schema is not None:
with self.db_engine.begin() as conn:
conn.execute(create_schema)
if self.materialize_subquery_fromobjs:
# materialize from obj
from_obj = FromObj(
from_obj=aggregation.from_obj.text,
name=f"{aggregation.schema}.{aggregation.prefix}",
knowledge_date_column=aggregation.date_column)
from_obj.maybe_materialize(self.db_engine)
aggregation.from_obj = from_obj.table
return aggregation
