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, 0 insertions, 13 deletions

diff --git a/odb/oracle/statement.hxx b/odb/oracle/statement.hxx
index 6a5d604..ba85fd8 100644
--- a/odb/oracle/statement.hxx
+++ b/odb/oracle/statement.hxx
@@ -110,17 +110,6 @@ namespace odb
                    std::size_t count,
                    std::size_t lob_prefetch_size = 0);
 
-      // Rebind LOB input parameters. If a query has made a private copy of
-      // the shared image, any LOB handles that were previously owned by the
-      // shared image are now owned by the private image of the query. These
-      // LOB handles need to be reallocated and redefined so that any unfetched
-      // results may be fetched.
-      //
-      void
-      rebind_result (bind*,
-                     std::size_t count,
-                     std::size_t lob_prefetch_size = 0);
-
       // Stream the result LOBs, calling user callbacks where necessary.
       // The old_base and new_base arguments can be used to "re-base" the
       // lob_callback struct pointer (stored in bind::callback), the lob
@@ -278,9 +267,7 @@ namespace odb
 
     private:
       binding& result_;
-      std::size_t result_version_;
       ub4 result_count_; // Actual number of bound columns.
-      const std::size_t lob_prefetch_size_;
       bool done_;
     };