Rotate subscription and tick tables to avoid held-xmin bloat (#61)

build/transform.sh

@@ -789,7 +789,7 @@ echo "-- Section 6: pgque additions (NEW — not derived from PgQ)" >> "${INSTAL
 echo "-- ======================================================================" >> "${INSTALL_FILE}"
 echo "" >> "${INSTALL_FILE}"
 
-for addition_file in config.sql queue_max_retries.sql lifecycle.sql roles.sql dlq.sql; do
+for addition_file in config.sql queue_max_retries.sql lifecycle.sql roles.sql dlq.sql metadata_rotation.sql; do
   echo "-- pgque-additions/${addition_file}" >> "${INSTALL_FILE}"
   cat "${ADDITIONS_DIR}/${addition_file}" >> "${INSTALL_FILE}"
   echo "" >> "${INSTALL_FILE}"

sql/pgque-additions/lifecycle.sql

@@ -56,7 +56,8 @@ begin
     select cron.schedule_in_database(
         'pgque_rotate_step2',
         '10 seconds',
-        $sql$SELECT pgque.maint_rotate_tables_step2()$sql$,
+        $sql$SELECT pgque.maint_rotate_tables_step2();
+             SELECT pgque.maint_rotate_metadata_step2();$sql$,
         v_dbname
     ) into v_step2_id;