diff --git a/arc-core/src/main/resources/BdD/script_function_utility.sql b/arc-core/src/main/resources/BdD/script_function_utility.sql
index 7dd76d0c8..3198f11e7 100644
--- a/arc-core/src/main/resources/BdD/script_function_utility.sql
+++ b/arc-core/src/main/resources/BdD/script_function_utility.sql
@@ -1,6 +1,20 @@
 CREATE SCHEMA IF NOT EXISTS arc;
 
 -- optimization parameters at database level
+-- dont forget to change parameters set at server nod level
+/*
+postgresql::server::config_entry:
+  wal_compression:
+    value: "on"
+  force_parallel_mode:
+    value: "off"
+  log_statement:
+    value: "none"
+  max_locks_per_transaction:
+    value: "1000"
+  max_connections:
+    value: "1000"
+*/
 do $$
 declare
 c record;