Update instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/__init__.py

Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>

Author: tdancheva

instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/__init__.py

@@ -78,7 +78,7 @@ async def main():
 
 def _hydrate_span_from_args(connection, query, parameters) -> dict:
     """Get network and database attributes from connection."""
-    span_attributes = {DB_SYSTEM_NAME: DbSystemValues.POSTGRESQL.value}
+    span_attributes = {DB_SYSTEM: DbSystemValues.POSTGRESQL.value}
 
     # connection contains _params attribute which is a namedtuple ConnectionParameters.
     # https://github.com/MagicStack/asyncpg/blob/master/asyncpg/connection.py#L68