diff --git a/sql.go b/sql.go
index 7d0af9b..2dbe7e9 100644
--- a/sql.go
+++ b/sql.go
@@ -1753,6 +1753,8 @@ func getSQLListID64(q string) []int64 {
 		ids []int64
 	)
 
+	fmt.Printf("getSQLListID64 : init : len(ids) = %d\n", len(ids))
+
 	rows, err := db.Query(q)
 	s := fmt.Sprintf("getSQLListID64 : Query(%s)", q)
 	logOnError(err, s)
@@ -1761,9 +1763,13 @@ func getSQLListID64(q string) []int64 {
 		err = rows.Scan(&id)
 		logOnError(err, "getSQLListID64 : scan next val")
 		ids = append(ids, id)
+		fmt.Printf("getSQLListID64 : append : len(ids) = %d\n", len(ids))
 	}
 	err = rows.Err()
 	logOnError(err, "getSQLListID64 : query end")
 	rows.Close()
+
+	fmt.Printf("getSQLListID64 : done : len(ids) = %d\n", len(ids))
+
 	return ids
 }