I made some updates based on the feedbacks in v2. This patch only contains the code change for allowing the signaling to av worker with pg_signal_autovacuum. I will send a separate patch for the tap test shortly.
Thanks -- Anthony Leung Amazon Web Services: https://aws.amazon.com
v2-0001-Introduce-pg_signal_autovacuum-role-to-cancel-or-termiante-autovacuum-worker.patch
Description: v2-0001-Introduce-pg_signal_autovacuum-role-to-cancel-or-termiante-autovacuum-worker.patch
