[Firebird-checkins] SF.net SVN: firebird:[61456] firebird/trunk/src/jrd/vio.cpp

[<ale...@us...>]

Revision: 61456
          http://sourceforge.net/p/firebird/code/61456
Author:   alexpeshkoff
Date:     2015-04-27 13:15:44 +0000 (Mon, 27 Apr 2015)
Log Message:
-----------
Check for source nullifying a bit more accurate

Modified Paths:
--------------
    firebird/trunk/src/jrd/vio.cpp

Modified: firebird/trunk/src/jrd/vio.cpp
===================================================================
--- firebird/trunk/src/jrd/vio.cpp	2015-04-27 12:36:09 UTC (rev 61455)
+++ firebird/trunk/src/jrd/vio.cpp	2015-04-27 13:15:44 UTC (rev 61456)
@@ -4149,7 +4149,7 @@
 		const bool org_null = !EVL_field(NULL, org_rpb->rpb_record, iter, &org_desc);
 		const bool new_null = !EVL_field(NULL, new_rpb->rpb_record, iter, &new_desc);
 
-		if (iter == field_id && new_null)
+		if (iter == field_id && new_null && (!org_null))
 		{
 			fb_assert(org_desc.dsc_dtype == dtype_blob);
 			fb_assert(new_desc.dsc_dtype == dtype_blob);

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