removed special ndb query cache variable

ndb will always return query cache type ASKTRANSACT

sql/ha_ndbcluster.cc

@@ -3025,9 +3025,6 @@ int ha_ndbcluster::external_lock(THD *thd, int lock_type)
       m_transaction_on= FALSE;
     else
       m_transaction_on= thd->variables.ndb_use_transactions;
-#ifdef HAVE_QUERY_CACHE
-    m_query_cache_type= thd->variables.ndb_query_cache_type;
-#endif
 
     m_active_trans= thd->transaction.all.ndb_tid ? 
       (NdbConnection*)thd->transaction.all.ndb_tid:
@@ -3752,8 +3749,7 @@ ha_ndbcluster::ha_ndbcluster(TABLE *table_arg):
   m_ha_not_exact_count(FALSE),
   m_force_send(TRUE),
   m_autoincrement_prefetch(32),
-  m_transaction_on(TRUE),
-  m_query_cache_type(0)
+  m_transaction_on(TRUE)
 {
   int i;
   
@@ -4457,22 +4453,8 @@ const char* ha_ndbcluster::index_type(uint key_number)
 }
 uint8 ha_ndbcluster::table_cache_type()
 {
-  DBUG_ENTER("ha_ndbcluster::table_cache_type");
-  switch (m_query_cache_type)
-  {
-  case 0:
-    DBUG_PRINT("exit",("HA_CACHE_TBL_NOCACHE"));
-    DBUG_RETURN(HA_CACHE_TBL_NOCACHE);
-  case 1:
-    DBUG_PRINT("exit",("HA_CACHE_TBL_ASKTRANSACT"));
+  DBUG_ENTER("ha_ndbcluster::table_cache_type=HA_CACHE_TBL_ASKTRANSACT");
   DBUG_RETURN(HA_CACHE_TBL_ASKTRANSACT);
-  case 2:
-    DBUG_PRINT("exit",("HA_CACHE_TBL_TRANSACT"));
-    DBUG_RETURN(HA_CACHE_TBL_TRANSACT);
-  default:
-    DBUG_PRINT("exit",("HA_CACHE_TBL_NOCACHE"));
-    DBUG_RETURN(HA_CACHE_TBL_NOCACHE);
-  }
 }
 
 static

sql/ha_ndbcluster.h

@@ -247,7 +247,6 @@ class ha_ndbcluster: public handler
   bool m_force_send;
   ha_rows m_autoincrement_prefetch;
   bool m_transaction_on;
-  ulong m_query_cache_type;
 
   void set_rec_per_key();
   void records_update();

sql/mysqld.cc

@@ -3969,7 +3969,6 @@ enum options_mysqld
   OPT_INNODB, OPT_ISAM,
   OPT_NDBCLUSTER, OPT_NDB_CONNECTSTRING, OPT_NDB_USE_EXACT_COUNT,
   OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
-  OPT_NDB_QUERY_CACHE_TYPE,
   OPT_SKIP_SAFEMALLOC,
   OPT_TEMP_POOL, OPT_TX_ISOLATION,
   OPT_SKIP_STACK_TRACE, OPT_SKIP_SYMLINKS,
@@ -4429,16 +4428,6 @@ Disable with --skip-ndbcluster (will save memory).",
    (gptr*) &global_system_variables.ndb_use_exact_count,
    (gptr*) &global_system_variables.ndb_use_exact_count,
    0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
-#ifdef HAVE_QUERY_CACHE
-  {"ndb_query_cache_type", OPT_NDB_QUERY_CACHE_TYPE,
-   "0 = OFF = Don't cache or retrieve results. 1 = ON = Cache as query_cache_type states and "
-   "invalidate cache if tables are updated by other mysql servers. "
-   "2 = LOCAL = Cache as query_cache_type states and don't bother about what's happening on other "
-   "mysql servers.",
-   (gptr*) &global_system_variables.ndb_query_cache_type,
-   (gptr*) &global_system_variables.ndb_query_cache_type,
-   0, GET_ULONG, REQUIRED_ARG, 0, 0, 2, 0, 0, 0},
-#endif
 #endif
   {"new", 'n', "Use very new possible 'unsafe' functions.",
    (gptr*) &global_system_variables.new_mode,

sql/set_var.cc

@@ -370,12 +370,6 @@ sys_ndb_force_send("ndb_force_send",
 sys_var_thd_bool
 sys_ndb_use_exact_count("ndb_use_exact_count",
 			&SV::ndb_use_exact_count);
-#ifdef HAVE_QUERY_CACHE
-sys_var_thd_enum
-sys_ndb_query_cache_type("ndb_query_cache_type",
-		    &SV::ndb_query_cache_type,
-		    &ndb_query_cache_type_typelib);
-#endif
 sys_var_thd_bool
 sys_ndb_use_transactions("ndb_use_transactions",
 			 &SV::ndb_use_transactions);
@@ -640,9 +634,6 @@ sys_var *sys_variables[]=
   &sys_ndb_autoincrement_prefetch_sz,
   &sys_ndb_force_send,
   &sys_ndb_use_exact_count,
-#ifdef HAVE_QUERY_CACHE
-  &sys_ndb_query_cache_type,
-#endif
   &sys_ndb_use_transactions,
 #endif
   &sys_unique_checks,
@@ -810,9 +801,6 @@ struct show_var_st init_vars[]= {
    (char*) &sys_ndb_autoincrement_prefetch_sz,                      SHOW_SYS},
   {sys_ndb_force_send.name,   (char*) &sys_ndb_force_send,          SHOW_SYS},
   {sys_ndb_use_exact_count.name,(char*) &sys_ndb_use_exact_count,   SHOW_SYS},
-#ifdef HAVE_QUERY_CACHE
-  {sys_ndb_query_cache_type.name,(char*) &sys_ndb_query_cache_type, SHOW_SYS},
-#endif
   {sys_ndb_use_transactions.name,(char*) &sys_ndb_use_transactions, SHOW_SYS},
 #endif
   {sys_net_buffer_length.name,(char*) &sys_net_buffer_length,       SHOW_SYS},

sql/sql_cache.cc

@@ -366,12 +366,6 @@ TYPELIB query_cache_type_typelib=
   array_elements(query_cache_type_names)-1,"", query_cache_type_names, NULL
 };
 
-const char *ndb_query_cache_type_names[]= { "OFF", "ON", "LOCAL",NullS };
-TYPELIB ndb_query_cache_type_typelib=
-{
-  array_elements(ndb_query_cache_type_names)-1,"", ndb_query_cache_type_names, NULL
-};
-
 /*****************************************************************************
  Query_cache_block_table method(s)
 *****************************************************************************/

sql/sql_cache.h

@@ -422,7 +422,6 @@ protected:
 };
 
 extern Query_cache query_cache;
-extern TYPELIB ndb_query_cache_type_typelib;
 extern TYPELIB query_cache_type_typelib;
 void query_cache_end_of_result(THD *thd);
 void query_cache_abort(NET *net);

sql/sql_class.h

@@ -403,7 +403,6 @@ struct system_variables
   ulong ndb_autoincrement_prefetch_sz;
   my_bool ndb_force_send;
   my_bool ndb_use_exact_count;
-  ulong   ndb_query_cache_type;
   my_bool ndb_use_transactions;
 #endif /* HAVE_NDBCLUSTER_DB */
   my_bool old_passwords;