I admit I'm surprised that your patch fixes the bug. sql_drop was added before the command-stashing was added for pg_event_trigger_ddl_commands was added, and sql_drop only processes objects from the list passed to performMultipleDeletions, so adding the EventTriggerAlterTableStart() / End() calls should not affect it ... evidently I must be missing something here.
Still looking. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
