tdf#93724 KeySet insert: properly set default values: NULL & right type

Change-Id: I933eed918e18b6923d4e0d24748297cf0dd0088d
Reviewed-on: https://gerrit.libreoffice.org/19651Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
(cherry picked from commit 11ce80e1)

dbaccess/source/core/api/KeySet.cxx

@@ -797,7 +797,18 @@ void OKeySet::executeInsert( const ORowSetRow& _rInsertRow,const OUString& i_sSQ
         for(;aIter != aEnd;++aIter)
         {
             if ( !(_rInsertRow->get())[aIter->second.nPosition].isModified() )
-                (_rInsertRow->get())[aIter->second.nPosition] = aIter->second.sDefaultValue;
+            {
+                if(aIter->second.bNullable && aIter->second.sDefaultValue.isEmpty())
+                {
+                    (_rInsertRow->get())[aIter->second.nPosition].setTypeKind(aIter->second.nType);
+                    (_rInsertRow->get())[aIter->second.nPosition].setNull();
+                }
+                else
+                {
+                    (_rInsertRow->get())[aIter->second.nPosition] = aIter->second.sDefaultValue;
+                    (_rInsertRow->get())[aIter->second.nPosition].setTypeKind(aIter->second.nType);
+                }
+            }
         }
         try
         {