diff --git a/myisam/mi_write.c b/myisam/mi_write.c
index cc17d4c6165..967fbdc2330 100644
--- a/myisam/mi_write.c
+++ b/myisam/mi_write.c
@@ -975,7 +975,7 @@ int mi_init_bulk_insert(MI_INFO *info, ulong cache_size, ha_rows rows)
     DBUG_RETURN(0);
 
   if (rows && rows*total_keylength < cache_size)
-    cache_size=rows;
+    cache_size= (ulong)rows;
   else
     cache_size/=total_keylength*16;
 
diff --git a/myisam/sort.c b/myisam/sort.c
index f48161b7c8e..023f70d18b9 100644
--- a/myisam/sort.c
+++ b/myisam/sort.c
@@ -141,7 +141,7 @@ int _create_index_by_sort(MI_SORT_PARAM *info,my_bool no_messages,
     if ((records < UINT_MAX32) && 
        ((my_off_t) (records + 1) * 
         (sort_length + sizeof(char*)) <= (my_off_t) memavl))
-      keys= records+1;
+      keys= (uint)records+1;
     else
       do
       {
@@ -349,7 +349,7 @@ pthread_handler_t thr_find_all_keys(void *arg)
     sort_keys= (uchar **) NULL;
 
     memavl=       max(sort_param->sortbuff_size, MIN_SORT_MEMORY);
-    idx=          sort_param->sort_info->max_records;
+    idx=          (uint)sort_param->sort_info->max_records;
     sort_length=  sort_param->key_length;
     maxbuffer=    1;
 
diff --git a/sql/ha_federated.cc b/sql/ha_federated.cc
index 4c15b13a5c9..d7f2309657b 100644
--- a/sql/ha_federated.cc
+++ b/sql/ha_federated.cc
@@ -2562,9 +2562,9 @@ int ha_federated::info(uint flag)
       data_file_length= records * mean_rec_length;
 
       if (row[12] != NULL)
-        update_time= (ha_rows) my_strtoll10(row[12], (char**) 0, &error);
+        update_time= (time_t) my_strtoll10(row[12], (char**) 0, &error);
       if (row[13] != NULL)
-        check_time= (ha_rows) my_strtoll10(row[13], (char**) 0, &error);
+        check_time= (time_t) my_strtoll10(row[13], (char**) 0, &error);
     }
 
     /*
diff --git a/sql/ha_heap.cc b/sql/ha_heap.cc
index bf807407df1..f829a78d0fa 100644
--- a/sql/ha_heap.cc
+++ b/sql/ha_heap.cc
@@ -175,7 +175,7 @@ void ha_heap::update_key_stats()
       else
       {
         ha_rows hash_buckets= file->s->keydef[i].hash_buckets;
-        uint no_records= hash_buckets ? file->s->records/hash_buckets : 2;
+        uint no_records= hash_buckets ? (uint) file->s->records/hash_buckets : 2;
         if (no_records < 2)
           no_records= 2;
         key->rec_per_key[key->key_parts-1]= no_records;
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 2d47c42cf1d..ce1a7fa0213 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -5474,7 +5474,7 @@ ha_innobase::info(
 
  				table->key_info[i].rec_per_key[j]=
 				  rec_per_key >= ~(ulong) 0 ? ~(ulong) 0 :
-				  rec_per_key;
+				  (ulong) rec_per_key;
 			}
 
 			index = dict_table_get_next_index_noninline(index);
diff --git a/sql/ha_myisam.cc b/sql/ha_myisam.cc
index 92fa9e405e1..ae0284fb202 100644
--- a/sql/ha_myisam.cc
+++ b/sql/ha_myisam.cc
@@ -1412,7 +1412,7 @@ void ha_myisam::start_bulk_insert(ha_rows rows)
   DBUG_ENTER("ha_myisam::start_bulk_insert");
   THD *thd= current_thd;
   ulong size= min(thd->variables.read_buff_size,
-                  table->s->avg_row_length*rows);
+                  (ulong) (table->s->avg_row_length*rows));
   DBUG_PRINT("info",("start_bulk_insert: rows %lu size %lu",
                      (ulong) rows, size));
 
diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index 04e2816d553..86900de8adb 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -2206,7 +2206,7 @@ double get_sweep_read_cost(const PARAM *param, ha_rows records)
   if (param->table->file->primary_key_is_clustered())
   {
     result= param->table->file->read_time(param->table->s->primary_key,
-                                          records, records);
+                                          (uint)records, records);
   }
   else
   {
@@ -2414,7 +2414,7 @@ TABLE_READ_PLAN *get_best_disjunct_quick(PARAM *param, SEL_IMERGE *imerge,
 
   /* Add Unique operations cost */
   unique_calc_buff_size=
-    Unique::get_cost_calc_buff_size(non_cpk_scan_records,
+    Unique::get_cost_calc_buff_size((ulong)non_cpk_scan_records,
                                     param->table->file->ref_length,
                                     param->thd->variables.sortbuff_size);
   if (param->imerge_cost_buff_size < unique_calc_buff_size)
@@ -2426,7 +2426,7 @@ TABLE_READ_PLAN *get_best_disjunct_quick(PARAM *param, SEL_IMERGE *imerge,
   }
 
   imerge_cost +=
-    Unique::get_use_cost(param->imerge_cost_buff, non_cpk_scan_records,
+    Unique::get_use_cost(param->imerge_cost_buff, (uint)non_cpk_scan_records,
                          param->table->file->ref_length,
                          param->thd->variables.sortbuff_size);
   DBUG_PRINT("info",("index_merge total cost: %g (wanted: less then %g)",
@@ -2765,7 +2765,7 @@ ROR_INTERSECT_INFO* ror_intersect_init(const PARAM *param)
   info->is_covering= FALSE;
   info->index_scan_costs= 0.0;
   info->index_records= 0;
-  info->out_rows= param->table->file->records;
+  info->out_rows= (double) param->table->file->records;
   bitmap_clear_all(&info->covered_fields);
   return info;
 }
@@ -6757,7 +6757,7 @@ int QUICK_RANGE_SELECT::reset()
   if (file->table_flags() & HA_NEED_READ_RANGE_BUFFER)
   {
     mrange_bufsiz= min(multi_range_bufsiz,
-                       (QUICK_SELECT_I::records + 1)* head->s->reclength);
+                       ((uint)QUICK_SELECT_I::records + 1)* head->s->reclength);
 
     while (mrange_bufsiz &&
            ! my_multi_malloc(MYF(MY_WME),
@@ -8359,7 +8359,7 @@ void cost_group_min_max(TABLE* table, KEY *index_info, uint used_key_parts,
                         bool have_min, bool have_max,
                         double *read_cost, ha_rows *records)
 {
-  uint table_records;
+  ha_rows table_records;
   uint num_groups;
   uint num_blocks;
   uint keys_per_block;
diff --git a/sql/sql_map.cc b/sql/sql_map.cc
index 03dc091b9b7..282716c6151 100644
--- a/sql/sql_map.cc
+++ b/sql/sql_map.cc
@@ -41,7 +41,7 @@ mapped_files::mapped_files(const my_string filename,byte *magic,uint magic_lengt
     struct stat stat_buf;
     if (!fstat(file,&stat_buf))
     {
-      if (!(map=(byte*) my_mmap(0,(size=(ulong) stat_buf.st_size),PROT_READ,
+      if (!(map=(byte*) my_mmap(0,(size_t)(size=(ulong) stat_buf.st_size),PROT_READ,
 			     MAP_SHARED | MAP_NORESERVE,file,
 			     0L)))
       {
@@ -52,7 +52,7 @@ mapped_files::mapped_files(const my_string filename,byte *magic,uint magic_lengt
     if (map && memcmp(map,magic,magic_length))
     {
       my_error(ER_WRONG_MAGIC, MYF(0), name);
-      VOID(my_munmap(map,size));
+      VOID(my_munmap(map,(size_t)size));
       map=0;
     }
     if (!map)
@@ -70,7 +70,7 @@ mapped_files::~mapped_files()
 #ifdef HAVE_MMAP
   if (file >= 0)
   {
-    VOID(my_munmap(map,size));
+    VOID(my_munmap(map,(size_t)size));
     VOID(my_close(file,MYF(0)));
     file= -1; map=0;
   }
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 3529de1c28a..7e7bd7a21ae 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -5915,7 +5915,7 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
 
 	    /* Fix for EXPLAIN */
 	    if (sel->quick)
-	      join->best_positions[i].records_read= sel->quick->records;
+	      join->best_positions[i].records_read= (double)sel->quick->records;
 	  }
 	  else
 	  {
diff --git a/sql/sql_update.cc b/sql/sql_update.cc
index c78e246f518..321d07dec76 100644
--- a/sql/sql_update.cc
+++ b/sql/sql_update.cc
@@ -362,7 +362,7 @@ int mysql_update(THD *thd,
         init_read_record_idx(&info, thd, table, 1, used_index);
 
       thd->proc_info="Searching rows for update";
-      uint tmp_limit= limit;
+      ha_rows tmp_limit= limit;
 
       while (!(error=info.read_record(&info)) && !thd->killed)
       {