Reimplement image copying for Oracle

Now we no longer "steal" descriptors (destructive copy). Instead, for
LOBs, we clone the locator using OCILobAssign(). For date-time types we
extract the data during copying. As a result of this change we no longer
need to track image changes and rebind the statements.

1 files changed, 1 insertions, 8 deletions

diff --git a/odb/oracle/no-id-object-result.txx b/odb/oracle/no-id-object-result.txx
index c58e0af..d845ab9 100644
--- a/odb/oracle/no-id-object-result.txx
+++ b/odb/oracle/no-id-object-result.txx
@@ -129,7 +129,7 @@ namespace odb
 
     template <typename T>
     void no_id_object_result_impl<T>::
-    change_callback (void* c, binding* b)
+    change_callback (void* c)
     {
       no_id_object_result_impl<T>* r (
         static_cast<no_id_object_result_impl<T>*> (c));
@@ -141,13 +141,6 @@ namespace odb
       else
         *r->image_copy_ = im;
 
-      // See comment in simple object_result for details on what's going
-      // on here.
-      //
-      im.version++;
-      if (b != 0)
-        b->version++;
-
       im.change_callback_.callback = 0;
       im.change_callback_.context = 0;