Description
asyncpg supports an explicit server_options=... dict connection method parameter, but does not seem to populate its value from the PGOPTIONS environment variable. This is a feature request for it to do so.
Specifically, asyncpg/connect_utils.py reads user, host, port, database, password, and SSL information with calls like os.getenv('PGUSER'), os.environ.get('PGHOST'), etc. There is no corresponding call for reading PGOPTIONS.
I would like to set the environment variable PGOPTIONS='-c default_transaction_read_only=on -c statement_timeout=120s' and have asyncpg interpret its values as server_settings the way libpq does. For instance, the below works for psql:
PGOPTIONS='-c statement_timeout=1s' psql -c "SELECT pg_sleep(2)"
ERROR: canceling statement due to statement timeout
but a simple asyncpg script running the same ignores the statement_timeout since it never reads the value of PGOPTIONS.
$ PGOPTIONS='-c statement_timeout=1s' ./test_asyncpg_timeout.py
SELECT 1