fix some conversion warnings

sql/item_sum.cc

@@ -36,9 +36,9 @@
   used in Item_sum_*
 */
 
-ulonglong Item_sum::ram_limitation(THD *thd)
+size_t Item_sum::ram_limitation(THD *thd)
 {
-  return MY_MIN(thd->variables.tmp_memory_table_size,
+  return (size_t)MY_MIN(thd->variables.tmp_memory_table_size,
                 thd->variables.max_heap_table_size);
 }
 

sql/item_sum.h

@@ -382,7 +382,7 @@ class Item_sum :public Item_func_or_sum
   */
   Item **orig_args, *tmp_orig_args[2];
   
-  static ulonglong ram_limitation(THD *thd);
+  static size_t ram_limitation(THD *thd);
 
 public:  
 

sql/opt_range.cc

@@ -10912,7 +10912,7 @@ int read_keys_and_merge_scans(THD *thd,
 
     unique= new Unique(refpos_order_cmp, (void *)file,
                        file->ref_length,
-                       thd->variables.sortbuff_size,
+                       (size_t)thd->variables.sortbuff_size,
 		       intersection ? quick_selects.elements : 0);                     
     if (!unique)
       goto err;

sql/sql_cache.h

@@ -557,8 +557,8 @@ struct Query_cache_query_flags
   ha_rows limit;
   Time_zone *time_zone;
   sql_mode_t sql_mode;
-  ulong max_sort_length;
-  ulong group_concat_max_len;
+  ulonglong max_sort_length;
+  ulonglong group_concat_max_len;
   ulong default_week_format;
   ulong div_precision_increment;
   MY_LOCALE *lc_time_names;

sql/sql_table.cc

@@ -4352,7 +4352,7 @@ static bool prepare_blob_field(THD *thd, Column_definition *sql_field)
         sql_field->sql_type == FIELD_TYPE_MEDIUM_BLOB)
     {
       /* The user has given a length to the blob column */
-      sql_field->sql_type= get_blob_type_from_length(sql_field->length);
+      sql_field->sql_type= get_blob_type_from_length((ulong)sql_field->length);
       sql_field->pack_length= calc_pack_length(sql_field->sql_type, 0);
     }
     sql_field->length= 0;

sql/sql_test.cc

@@ -432,7 +432,7 @@ static void push_locks_into_array(DYNAMIC_ARRAY *ar, THR_LOCK_DATA *data,
     if (table && table->s->tmp_table == NO_TMP_TABLE)
     {
       TABLE_LOCK_INFO table_lock_info;
-      table_lock_info.thread_id= table->in_use->thread_id;
+      table_lock_info.thread_id= (ulong)table->in_use->thread_id;
       memcpy(table_lock_info.table_name, table->s->table_cache_key.str,
 	     table->s->table_cache_key.length);
       table_lock_info.table_name[strlen(table_lock_info.table_name)]='.';

sql/uniques.cc

@@ -79,7 +79,7 @@ int unique_intersect_write_to_ptrs(uchar* key, element_count count, Unique *uniq
 
 
 Unique::Unique(qsort_cmp2 comp_func, void * comp_func_fixed_arg,
-	       uint size_arg, ulonglong max_in_memory_size_arg,
+	       uint size_arg, size_t max_in_memory_size_arg,
                uint min_dupl_count_arg)
   :max_in_memory_size(max_in_memory_size_arg),
    size(size_arg),
@@ -91,7 +91,7 @@ Unique::Unique(qsort_cmp2 comp_func, void * comp_func_fixed_arg,
   if (min_dupl_count_arg)
     full_size+= sizeof(element_count);
   with_counters= MY_TEST(min_dupl_count_arg);
-  init_tree(&tree, (ulong) (max_in_memory_size / 16), 0, size, comp_func,
+  init_tree(&tree, (max_in_memory_size / 16), 0, size, comp_func,
             NULL, comp_func_fixed_arg, MYF(MY_THREAD_SPECIFIC));
   /* If the following fail's the next add will also fail */
   my_init_dynamic_array(&file_ptrs, sizeof(BUFFPEK), 16, 16,
@@ -306,7 +306,7 @@ static double get_merge_many_buffs_cost(uint *buffer,
 */
 
 double Unique::get_use_cost(uint *buffer, size_t nkeys, uint key_size,
-                            ulonglong max_in_memory_size,
+                            size_t max_in_memory_size,
                             uint compare_factor,
                             bool intersect_fl, bool *in_memory)
 {

sql/uniques.h

@@ -30,7 +30,7 @@ class Unique :public Sql_alloc
 {
   DYNAMIC_ARRAY file_ptrs;
   ulong max_elements;
-  ulonglong max_in_memory_size;
+  size_t max_in_memory_size;
   IO_CACHE file;
   TREE tree;
   ulong filtered_out_elems;
@@ -46,7 +46,7 @@ class Unique :public Sql_alloc
   ulong elements;
   SORT_INFO sort;
   Unique(qsort_cmp2 comp_func, void *comp_func_fixed_arg,
-	 uint size_arg, ulonglong max_in_memory_size_arg,
+	 uint size_arg, size_t max_in_memory_size_arg,
          uint min_dupl_count_arg= 0);
   ~Unique();
   ulong elements_in_tree() { return tree.elements_in_tree; }
@@ -72,12 +72,12 @@ class Unique :public Sql_alloc
   }  
 
   static double get_use_cost(uint *buffer, size_t nkeys, uint key_size,
-                             ulonglong max_in_memory_size, uint compare_factor,
+                             size_t max_in_memory_size, uint compare_factor,
                              bool intersect_fl, bool *in_memory);
   inline static int get_cost_calc_buff_size(size_t nkeys, uint key_size,
-                                            ulonglong max_in_memory_size)
+                                            size_t max_in_memory_size)
   {
-    register ulonglong max_elems_in_tree=
+    register size_t max_elems_in_tree=
       max_in_memory_size / ALIGN_SIZE(sizeof(TREE_ELEMENT)+key_size);
     return (int) (sizeof(uint)*(1 + nkeys/max_elems_in_tree));
   }
@@ -86,7 +86,7 @@ class Unique :public Sql_alloc
   bool walk(TABLE *table, tree_walk_action action, void *walk_action_arg);
 
   uint get_size() const { return size; }
-  ulonglong get_max_in_memory_size() const { return max_in_memory_size; }
+  size_t get_max_in_memory_size() const { return max_in_memory_size; }
 
   friend int unique_write_to_file(uchar* key, element_count count, Unique *unique);
   friend int unique_write_to_ptrs(uchar* key, element_count count, Unique *unique);

storage/myisam/myisamchk.c

@@ -1116,7 +1116,7 @@ static int myisamchk(HA_CHECK *param, char * filename)
       {
 	if (param->testflag & (T_EXTEND | T_MEDIUM))
 	  (void) init_key_cache(dflt_key_cache,opt_key_cache_block_size,
-                                param->use_buffers, 0, 0, 0, 0);
+                                (size_t)param->use_buffers, 0, 0, 0, 0);
 	(void) init_io_cache(&param->read_cache,datafile,
 			   (uint) param->read_buffer_length,
 			   READ_CACHE,