diff --git a/src/context/service/database/models/_Base.py b/src/context/service/database/models/_Base.py index 4323fb7130462b13958627216c62f1fe4edc91c7..973f7b7be9282ff07e25c27529e9b41c8bd35cfc 100644 --- a/src/context/service/database/models/_Base.py +++ b/src/context/service/database/models/_Base.py @@ -13,10 +13,47 @@ # limitations under the License. import sqlalchemy -from sqlalchemy.orm import declarative_base +from typing import Any, List +from sqlalchemy.orm import Session, sessionmaker, declarative_base +from sqlalchemy.sql import text +from sqlalchemy_cockroachdb import run_transaction _Base = declarative_base() +def create_performance_enhancers(db_engine : sqlalchemy.engine.Engine) -> None: + def index_storing( + index_name : str, table_name : str, index_fields : List[str], storing_fields : List[str] + ) -> Any: + str_index_fields = ','.join(['"{:s}"'.format(index_field) for index_field in index_fields]) + str_storing_fields = ','.join(['"{:s}"'.format(storing_field) for storing_field in storing_fields]) + INDEX_STORING = 'CREATE INDEX IF NOT EXISTS {:s} ON "{:s}" ({:s}) STORING ({:s});' + return text(INDEX_STORING.format(index_name, table_name, str_index_fields, str_storing_fields)) + + statements = [ + index_storing('configrule_device_uuid_rec_idx', 'configrule', ['device_uuid'], [ + 'service_uuid', 'slice_uuid', 'position', 'kind', 'action', 'data', 'created_at', 'updated_at' + ]), + index_storing('configrule_service_uuid_rec_idx', 'configrule', ['service_uuid'], [ + 'device_uuid', 'slice_uuid', 'position', 'kind', 'action', 'data', 'created_at', 'updated_at' + ]), + index_storing('configrule_slice_uuid_rec_idx', 'configrule', ['slice_uuid'], [ + 'device_uuid', 'service_uuid', 'position', 'kind', 'action', 'data', 'created_at', 'updated_at' + ]), + index_storing('constraint_service_uuid_rec_idx', 'constraint', ['service_uuid'], [ + 'slice_uuid', 'position', 'kind', 'data', 'created_at', 'updated_at' + ]), + index_storing('constraint_slice_uuid_rec_idx', 'constraint', ['slice_uuid'], [ + 'service_uuid', 'position', 'kind', 'data', 'created_at', 'updated_at' + ]), + index_storing('endpoint_device_uuid_rec_idx', 'endpoint', ['device_uuid'], [ + 'topology_uuid', 'name', 'endpoint_type', 'kpi_sample_types', 'created_at', 'updated_at' + ]), + ] + def callback(session : Session) -> bool: + for stmt in statements: session.execute(stmt) + run_transaction(sessionmaker(bind=db_engine), callback) + def rebuild_database(db_engine : sqlalchemy.engine.Engine, drop_if_exists : bool = False): if drop_if_exists: _Base.metadata.drop_all(db_engine) _Base.metadata.create_all(db_engine) + create_performance_enhancers(db_engine)