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use joinedload instead of lazyload to speed up db queries in hk #566

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Oct 14, 2023
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use joinedload instead of lazyload to speed up db queries in hk #566

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4 changes: 2 additions & 2 deletions sotodlib/io/g3thk_db.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
from sqlalchemy.exc import IntegrityError

from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, relationship
from sqlalchemy.orm import sessionmaker, relationship, joinedload

import os
import yaml
Expand Down Expand Up @@ -521,7 +521,7 @@ def get_db_agents(self, instance_id, start, stop):
if agents.count() == 0:
logger.warning(f"no agents found between {start} and {stop}")

agents = agents.filter(HKAgents.instance_id == instance_id).all()
agents = agents.filter(HKAgents.instance_id == instance_id).options(joinedload(HKAgents.fields)).all()
return agents

def get_last_update(self):
Expand Down