add reseting of synapse_state_compressor to purge script

purge/matrixpurge.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 # Do various clean-up tasks in matrix postgresql database
 # run as cron job all 6h or so
+# run with argument reset every month or every week
 
 # URL to connect to matrix
 MATRIXURL="http://localhost:8008"
@@ -34,6 +35,25 @@ then
 	psql -t postgresql://${SQLUSER}:${SQLPASSWD}@localhost/${SQLDB} -c "insert into access_tokens(id, user_id, token, device_id, last_validated, used) values (${TOKENID}, '${ADMINID}', '${TOKEN}', 'SQLCLEANER', 1656788062940, 'f')"
 fi
 
+[ "${1}" = "reset" ] && {
+	# reset state_auto_compressor
+  echo "-- Reset rust-synapse-compress-state"
+  psql -t postgresql://${SQLUSER}:${SQLPASSWD}@localhost/${SQLDB} -c "drop table state_compressor_state; drop table state_compressor_progress; drop table state_compressor_total_progress;"
+}
+
+# purge events in a room - just for reference - ignore this block
+# TODO provide a function that purges a room and also its state_groups
+#ROOM="scTbMproDsaihhGesQ:pixelplanet.fun"
+#DELURL="${MATRIXURL}/_synapse/admin/v1/purge_history/!${ROOM}"
+#curl --insecure -XPOST -H "Authorization: Bearer ${TOKEN}" -H "Content-Type: application/json" -d "{\"delete_local_events\": true, \"purge_up_to_ts\": 1660340843343}" ${DELURL}
+# and its status check
+#DELURL="${MATRIXURL}/_synapse/admin/v1/purge_history_status/MtGGeIGbsYTqdCUF"
+#curl --insecure -XGET -H "Authorization: Bearer ${TOKEN}" ${DELURL}
+# Remember that if you delete a room, it's state groups are still around
+# https://github.com/erikjohnston/synapse-find-unreferenced-state-groups
+#exit
+# -----------------------------------------------------------------
+
 # Disable ratelimit
 echo "--Disabling ratelimit for admin user ${ADMINID}..."
 RATEURL="${MATRIXURL}/_synapse/admin/v1/users/${ADMINID}/override_ratelimit"
@@ -90,3 +110,5 @@ time psql -t postgresql://${SQLUSER}:${SQLPASSWD}@localhost/${SQLDB} -c "SELECT
 
 [ -n "${BASH_VERSION}" ] && set +H
 psql postgresql://${SQLUSER}:${SQLPASSWD}@localhost/${SQLDB} -c "SELECT nspname || '.' || relname AS \"relation\", pg_size_pretty(pg_total_relation_size(c.oid)) AS \"total_size\" FROM pg_class c LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace) WHERE nspname NOT IN ('pg_catalog', 'information_schema') AND c.relkind <> 'i' AND nspname !~ '^pg_toast' ORDER BY pg_total_relation_size(c.oid) DESC LIMIT 20;"
+
+