wl2240 - ndb partitioning bug fixes for range scans

ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  Fix setting of dist keys for ordered indexes
ndb/src/ndbapi/NdbOperationSearch.cpp:
  Remove support for combined distribution key and range scan
sql/ha_ndbcluster.cc:
  Merge error with wl2126

ndb/src/ndbapi/NdbDictionaryImpl.cpp

@@ -1950,8 +1950,11 @@ NdbDictInterface::create_index_obj_from_table(NdbIndexImpl** dst,
   idx->m_logging = tab->m_logging;
   // skip last attribute (NDB$PK or NDB$TNODE)
 
-  Uint32 distKeys = 0;
-  for(unsigned i = 0; i+1<tab->m_columns.size(); i++){
+  const Uint32 distKeys = prim->m_noOfDistributionKeys;
+  Uint32 keyCount = (distKeys ? distKeys : prim->m_noOfKeys);
+
+  unsigned i;
+  for(i = 0; i+1<tab->m_columns.size(); i++){
     NdbColumnImpl* org = tab->m_columns[i];
 
     NdbColumnImpl* col = new NdbColumnImpl;
@@ -1969,20 +1972,24 @@ NdbDictInterface::create_index_obj_from_table(NdbIndexImpl** dst,
     idx->m_key_ids[key_id] = i;
     col->m_keyInfoPos = key_id;
 
-    /**
-     * Fix distribution key stuff for ordered indexes
-     */
-    if(type == NdbDictionary::Index::OrderedIndex)
-    {
-      if(primCol->m_distributionKey ||
-	 (prim->m_noOfDistributionKeys == 0 && primCol->getPrimaryKey()))
+    if(type == NdbDictionary::Index::OrderedIndex && 
+       (primCol->m_distributionKey ||
+	(distKeys == 0 && primCol->getPrimaryKey())))
     {
-	distKeys++;
+      keyCount--;
       org->m_distributionKey = 1;
     }
   }
+
+  if(keyCount == 0)
+  {
+    tab->m_noOfDistributionKeys = (distKeys ? distKeys : prim->m_noOfKeys);
+  }
+  else 
+  {
+    for(i = 0; i+1<tab->m_columns.size(); i++)
+      tab->m_columns[i]->m_distributionKey = 0;
   }
-  tab->m_noOfDistributionKeys = distKeys;
 
   * dst = idx;
   return 0;

ndb/src/ndbapi/NdbOperationSearch.cpp

@@ -512,8 +512,10 @@ NdbOperation::handle_distribution_key(const Uint64* value, Uint32 len)
   {
     setPartitionHash(value, len);
   }
-  else 
+  else if(tSignal->readSignalNumber() == GSN_TCKEYREQ)
   {
+    // No support for combined distribution key and scan
+
     /**
      * Copy distribution key to linear memory
      */

sql/ha_ndbcluster.cc

@@ -1304,6 +1304,9 @@ inline int ha_ndbcluster::next_result(byte *buf)
   int res;
   DBUG_ENTER("next_result");
     
+  if (!m_active_cursor)
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+  
   if((res= fetch_next(m_active_cursor)) == 0)
   {
     DBUG_PRINT("info", ("One more record found"));