Add a little context of why this code exists

This commit is contained in:
Gavin M. Roy 2020-08-11 19:40:56 -04:00
parent 9a49d769df
commit e880017fc8

View file

@ -266,6 +266,13 @@ class PostgresConnector:
'Unexpected value for ProgrammingError(%s).pgcode: %r',
err, err.pgcode)
# This logic exists so that we can wrap the results and quickly free
# the cursor / connection. We do not know if the query was a SELECT,
# INSERT, UPDATE, or DELETE and we may impact multiple rows, but not
# have any data to retrieve. The ProgrammingErrror is raised in this
# context. It is raised in other contexts, such as when there is an
# error in the query, but that will be caught on L248
if self.cursor.rowcount == 1:
try:
row = dict(await self.cursor.fetchone())