diff --git a/src/exchangedb/exchange_do_batch2_reserves_in_insert.sql b/src/exchangedb/exchange_do_batch2_reserves_in_insert.sql
index bda644eca..932f7d813 100644
--- a/src/exchangedb/exchange_do_batch2_reserves_in_insert.sql
+++ b/src/exchangedb/exchange_do_batch2_reserves_in_insert.sql
@@ -55,7 +55,6 @@ DECLARE
 DECLARE
   k INT8;
 BEGIN
-  --SIMPLE INSERT ON CONFLICT DO NOTHING
   transaction_duplicate=TRUE;
   transaction_duplicate2=TRUE;
   out_reserve_found = TRUE;
diff --git a/src/exchangedb/exchange_do_batch4_reserves_in_insert.sql b/src/exchangedb/exchange_do_batch4_reserves_in_insert.sql
index c2157f7d3..a70521bcd 100644
--- a/src/exchangedb/exchange_do_batch4_reserves_in_insert.sql
+++ b/src/exchangedb/exchange_do_batch4_reserves_in_insert.sql
@@ -267,7 +267,7 @@ BEGIN
     END IF;
   k=k+1;
   END LOOP;
-
+ /**ROLLBACK TRANSACTION IN SOTRED PROCEDURE IS IT PROSSIBLE ?**/
   /*IF transaction_duplicate
   OR transaction_duplicate2
   OR transaction_duplicate3
diff --git a/src/exchangedb/test_exchangedb_by_j.c b/src/exchangedb/test_exchangedb_by_j.c
index 9769d964b..533871cca 100644
--- a/src/exchangedb/test_exchangedb_by_j.c
+++ b/src/exchangedb/test_exchangedb_by_j.c
@@ -107,7 +107,7 @@ run (void *cls)
         const char *sndr = "payto://x-taler-bank/localhost:8080/1";
         struct TALER_Amount value;
         unsigned int batch_size = batches[i];
-        unsigned int iterations = 16;//1024*10;
+        unsigned int iterations = 10000;//1024*10;
         struct TALER_ReservePublicKeyP reserve_pubs[iterations];
         struct GNUNET_TIME_Absolute now;
         struct GNUNET_TIME_Timestamp ts;