Fixed compiler warnings (Mostly VC++):

- Removed not used variables
- Changed some ulong parameters/variables to ulonglong (possible serious bug)
- Added casts to get rid of safe assignment from longlong to long (and similar)
- Added casts to function parameters
- Fixed signed/unsigned compares
- Added some constructores to structures
- Removed some not portable constructs

Better fix for bug Bug #21428 "skipped 9 bytes from file: socket (3)" on "mysqladmin shutdown"
(Added new parameter to net_clear() to define when we want the communication buffer to be emptied)


client/mysql.cc:
  Removed not used variable
client/mysqldump.c:
  Fixed compiler warning
client/mysqlslap.c:
  Fixed compiler warning
client/mysqltest.c:
  Fixed compiler warning
extra/replace.c:
  Fixed compiler warning
include/my_global.h:
  Fixed compiler warning
include/mysql_com.h:
  Changed prototype for net_clear()
libmysql/libmysql.c:
  Changed prototype for net_clear()
mysys/base64.c:
  Fixed compiler warning (function definition and prototype didn't match)
mysys/my_thr_init.c:
  AFter merge fixes
mysys/my_vle.c:
  Fixed compiler warning
sql/event_data_objects.cc:
  Fixed compiler warning
sql/event_scheduler.cc:
  Removed not used variable
sql/field.cc:
  Removed not used variables
  Fixed compiler warning
sql/gen_lex_hash.cc:
  Fixed compiler warning
sql/ha_partition.h:
  Fixed compiler warning
sql/handler.cc:
  Fixed compiler warning
sql/item.cc:
  Fixed compiler warning
sql/item_create.cc:
  Fixed compiler warning
sql/item_func.cc:
  Fixed compiler warning
sql/item_strfunc.cc:
  Fixed compiler warning
sql/item_timefunc.cc:
  Fixed compiler warning
sql/item_xmlfunc.cc:
  Fixed compiler warning
sql/log.cc:
  Fixed compiler warning
sql/log_event.cc:
  Fixed compiler warning
sql/log_event.h:
  Fixed compiler warning
sql/mysql_priv.h:
  Fixed too short 'select_type'
sql/net_serv.cc:
  Added argument to net_clear() if we should empty the communication buffer.
sql/opt_range.cc:
  Fixed compiler warning
sql/partition_info.cc:
  Fixed compiler warning
sql/rpl_injector.h:
  Fixed compiler warning
sql/set_var.cc:
  Fixed compiler warning
sql/slave.cc:
  Fixed compiler warning
sql/sp_head.cc:
  Fixed compiler warning
sql/sql_base.cc:
  Fixed compiler warning
sql/sql_db.cc:
  Fixed compiler warning
sql/sql_delete.cc:
  Fixed compiler warning
sql/sql_insert.cc:
  Fixed compiler warning
sql/sql_lex.h:
  Fixed compiler warning
sql/sql_parse.cc:
  Fixed compiler warning
sql/sql_partition.cc:
  Fixed compiler warning
sql/sql_plugin.cc:
  Fixed compiler warning
sql/sql_prepare.cc:
  Fixed compiler warning
sql/sql_rename.cc:
  Fixed compiler warning
sql/sql_select.cc:
  Fixed compiler warning
sql/sql_show.cc:
  Fixed compiler warning
sql/sql_table.cc:
  Fixed compiler warning
sql/sql_trigger.cc:
  Fixed compiler warning
sql-common/client.c:
  Better fix for bug Bug #21428 "skipped 9 bytes from file: socket (3)" on "mysqladmin shutdown"
sql-common/my_time.c:
  Fixed compiler warning
sql/sql_union.cc:
  Fixed compiler warning
sql/sql_update.cc:
  Fixed compiler warning
sql/sql_view.cc:
  Fixed compiler warning
sql/sql_yacc.yy:
  Fixed compiler warning
sql/table.cc:
  Fixed compiler warning
storage/archive/azio.c:
  Fixed compiler warning
storage/csv/ha_tina.cc:
  Removed not used code
storage/myisam/mi_unique.c:
  Fixed compiler warning
storage/ndb/include/util/OutputStream.hpp:
  Fixed compiler warning
storage/ndb/include/util/SocketAuthenticator.hpp:
  Fixed compiler warning
storage/ndb/src/kernel/vm/Pool.hpp:
  Fixed compiler warning
strings/ctype-simple.c:
  Fixed compiler warning
strings/my_strchr.c:
  Fixed compiler warning

sql/opt_range.cc

@@ -540,7 +540,8 @@ class PARAM : public RANGE_OPT_PARAM
 {
 public:
   KEY_PART *key[MAX_KEY]; /* First key parts of keys used in the query */
-  uint baseflag, max_key_part, range_count;
+  longlong baseflag;
+  uint max_key_part, range_count;
 
 
   char min_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH],
@@ -1142,7 +1143,6 @@ int QUICK_RANGE_SELECT::init_ror_merged_scan(bool reuse_handler)
 {
   handler *save_file= file, *org_file;
   THD *thd;
-  MY_BITMAP *bitmap;
   DBUG_ENTER("QUICK_RANGE_SELECT::init_ror_merged_scan");
 
   in_ror_merged_scan= 1;
@@ -2048,7 +2048,7 @@ int SQL_SELECT::test_quick_select(THD *thd, key_map keys_to_use,
 
     /* set up parameter that is passed to all functions */
     param.thd= thd;
-    param.baseflag=head->file->ha_table_flags();
+    param.baseflag= head->file->ha_table_flags();
     param.prev_tables=prev_tables | const_tables;
     param.read_tables=read_tables;
     param.current_table= head->map;
@@ -2101,7 +2101,8 @@ int SQL_SELECT::test_quick_select(THD *thd, key_map keys_to_use,
 	key_parts->null_bit=	 key_part_info->null_bit;
         key_parts->image_type =
           (key_info->flags & HA_SPATIAL) ? Field::itMBR : Field::itRAW;
-        key_parts->flag=         key_part_info->key_part_flag;
+        /* Only HA_PART_KEY_SEG is used */
+        key_parts->flag=         (uint8) key_part_info->key_part_flag;
       }
       param.real_keynr[param.keys++]=idx;
     }
@@ -2508,7 +2509,6 @@ bool prune_partitions(THD *thd, TABLE *table, Item *pprune_cond)
 
   prune_param.key= prune_param.range_param.key_parts;
   SEL_TREE *tree;
-  SEL_ARG *arg;
   int res;
 
   tree= get_mm_tree(range_par, pprune_cond);
@@ -3223,12 +3223,12 @@ static bool create_partition_index_description(PART_PRUNE_PARAM *ppar)
   {
     key_part->key=          0;
     key_part->part=	    part;
-    key_part->length=       (*field)->pack_length_in_rec();
+    key_part->length=       (uint16) (*field)->pack_length_in_rec();
     /* 
       psergey-todo: check yet again if this is correct for tricky field types,
       e.g. see "Fix a fatal error in decimal key handling" in open_binary_frm()
     */
-    key_part->store_length= (*field)->pack_length();
+    key_part->store_length= (uint16) (*field)->pack_length();
     if ((*field)->real_maybe_null())
       key_part->store_length+= HA_KEY_NULL_LENGTH;
     if ((*field)->type() == FIELD_TYPE_BLOB || 
@@ -7652,7 +7652,7 @@ QUICK_RANGE_SELECT *get_quick_select_for_ref(THD *thd, TABLE *table,
     key_part->length=  	    key_info->key_part[part].length;
     key_part->store_length= key_info->key_part[part].store_length;
     key_part->null_bit=     key_info->key_part[part].null_bit;
-    key_part->flag=         key_info->key_part[part].key_part_flag;
+    key_part->flag=         (uint8) key_info->key_part[part].key_part_flag;
   }
   if (insert_dynamic(&quick->ranges,(gptr)&range))
     goto err;