Batch SELECTs in _get_auth_chain_ids_txn
Batch SELECTs in _get_auth_chain_ids_txn

matrix-org/synapse,rzr/synapse,iot-factory/synapse,TribeMedia/synapse,iot-factory/synapse,iot-factory/synapse,matrix-org/synapse,rzr/synapse,iot-factory/synapse,matrix-org/synapse,TribeMedia/synapse,rzr/synapse,TribeMedia/synapse,matrix-org/synapse,rzr/synapse,iot-factory/synapse,matrix-org/synapse,TribeMedia/synapse,matrix-org/synapse,TribeMedia/synapse,rzr/synapse