define immutable trigger for connection and connection state

internal/db/migrations/postgres.gen.go

@@ -3726,6 +3726,12 @@ begin;
     update_time wt_timestamp
   );
 
+  create trigger 
+    immutable_columns
+  before
+  update on session_connection
+    for each row execute procedure immutable_columns('wt_public_id', 'session_id', 'client_address', 'client_port', 'backend_address', 'backend_port', 'create_time');
+
   create or replace function 
     insert_new_connection_state()
     returns trigger
@@ -3782,6 +3788,12 @@ begin;
       references session_connection_state (connection_id, end_time)
   );
 
+  create trigger 
+    immutable_columns
+  before
+  update on session_connection_state
+    for each row execute procedure immutable_columns('connection_id', 'state', 'start_time');
+
 
   create or replace function
     insert_session_connection_state()

internal/db/migrations/postgres/51_connection.up.sql

@@ -131,6 +131,12 @@ begin;
     update_time wt_timestamp
   );
 
+  create trigger 
+    immutable_columns
+  before
+  update on session_connection
+    for each row execute procedure immutable_columns('wt_public_id', 'session_id', 'client_address', 'client_port', 'backend_address', 'backend_port', 'create_time');
+
   create or replace function 
     insert_new_connection_state()
     returns trigger
@@ -187,6 +193,12 @@ begin;
       references session_connection_state (connection_id, end_time)
   );
 
+  create trigger 
+    immutable_columns
+  before
+  update on session_connection_state
+    for each row execute procedure immutable_columns('connection_id', 'state', 'start_time');
+
 
   create or replace function
     insert_session_connection_state()