Added support for setting CLIENT_DRIVER in V$SESSION_CONNECT_INFO in Oracle 11g

and higher.

Connection.c

@@ -418,6 +418,17 @@ static int Connection_Connect(
             return -1;
     }
 
+#ifdef OCI_ATTR_DRIVER_NAME
+printf("setting driver name to %s\n", DRIVER_NAME);
+    status = OCIAttrSet(self->sessionHandle, OCI_HTYPE_SESSION,
+            (text*) DRIVER_NAME, strlen(DRIVER_NAME), OCI_ATTR_DRIVER_NAME,
+            self->environment->errorHandle);
+    if (Environment_CheckForError(self->environment, status,
+            "Connection_Connect(): set driver name") < 0)
+        return -1;
+
+#endif
+
     // set the session handle on the service context handle
     status = OCIAttrSet(self->handle, OCI_HTYPE_SVCCTX,
             self->sessionHandle, 0, OCI_ATTR_SESSION,

HISTORY.txt

@@ -16,24 +16,26 @@ Changes from 4.3.3 to 4.4
     during the rollback; unfortunately, Oracle decides to commit data even when
     dropping a connection from the pool instead of rolling it back so the
     attempt still has to be made.
- 7) Use cx_Oracle.InterfaceError rather than the builtin RuntimeError when
+ 7) Added support for setting CLIENT_DRIVER in V$SESSION_CONNECT_INFO in Oracle
+    11g and higher.
+ 8) Use cx_Oracle.InterfaceError rather than the builtin RuntimeError when
     unable to create the Oracle environment object as requested by Luke Mewburn
     since the error is specific to Oracle and someone attempting to catch any
     exception cannot simply use cx_Oracle.Error.
- 8) Translated some error codes to OperationalError as requested by Matthew
+ 9) Translated some error codes to OperationalError as requested by Matthew
     Harriger; translated if/elseif/else logic to switch statement to make it
     more readable and to allow for additional translation if desired.
- 9) Transformed documentation to new format using restructured text. Thanks to
+10) Transformed documentation to new format using restructured text. Thanks to
     Waldemar Osuch for contributing the initial draft of the new documentation.
-10) Allow the password to be overwritten by a new value as requested by Alex
+11) Allow the password to be overwritten by a new value as requested by Alex
     VanderWoude; this value is retained as a convenience to the user and not
     used by anything in the module; if changed externally it may be convenient
     to keep this copy up to date.
-11) Cygwin is on Windows so should be treated in the same way as noted by
+12) Cygwin is on Windows so should be treated in the same way as noted by
     Matthew Cahn.
-12) Add support for using setuptools if so desired as requested by Shreya
+13) Add support for using setuptools if so desired as requested by Shreya
     Bhatt.
-13) Specify that the version of Oracle 10 that is now primarily used is 10.2,
+14) Specify that the version of Oracle 10 that is now primarily used is 10.2,
     not 10.1.
 
 Changes from 4.3.2 to 4.3.3

cx_Oracle.c

@@ -50,10 +50,11 @@ typedef int Py_ssize_t;
     if (PyModule_AddObject(module, name, (PyObject*) type) < 0) \
         return;
 
-// define macro to get the build version as a string
+// define macros to get the build version as a string and the driver name
 #define xstr(s)                 str(s)
 #define str(s)                  #s
 #define BUILD_VERSION_STRING    xstr(BUILD_VERSION)
+#define DRIVER_NAME             "cx_Oracle-"BUILD_VERSION_STRING
 
 
 //-----------------------------------------------------------------------------