Merge mysql.com:/my/mysql-4.1 into mysql.com:/my/mysql-5.0

client/mysqltest.c:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_prepare.cc:
  Auto merged

client/mysqltest.c

@@ -2154,7 +2154,7 @@ int run_query(MYSQL* mysql, struct st_query* q, int flags)
   DYNAMIC_STRING ds_tmp;
   DYNAMIC_STRING eval_query;
   char* query;
-  int query_len;
+  int query_len, got_error_on_send= 0;
   DBUG_ENTER("run_query");
   
   if (q->type != Q_EVAL)
@@ -2179,9 +2179,13 @@ int run_query(MYSQL* mysql, struct st_query* q, int flags)
   else
     ds= &ds_res;
 
-  if ((flags & QUERY_SEND) && mysql_send_query(mysql, query, query_len))
-    die("At line %u: unable to send query '%s'(mysql_errno=%d,errno=%d)",
+  if (flags & QUERY_SEND)
+  {
+    got_error_on_send= mysql_send_query(mysql, query, query_len);
+    if (got_error_on_send && !q->expected_errno[0])
+      die("At line %u: unable to send query '%s' (mysql_errno=%d , errno=%d)",
 	  start_lineno, query, mysql_errno(mysql), errno);
+  }
 
   do
   {
@@ -2194,7 +2198,8 @@ int run_query(MYSQL* mysql, struct st_query* q, int flags)
     if (!(flags & QUERY_REAP))
       DBUG_RETURN(0);
 
-    if ((!counter && (*mysql->methods->read_query_result)(mysql)) ||
+    if (got_error_on_send ||
+	(!counter && (*mysql->methods->read_query_result)(mysql)) ||
 	 (!(last_result= res= mysql_store_result(mysql)) &&
 	  mysql_field_count(mysql)))
     {

mysql-test/mysql-test-run.sh

@@ -198,6 +198,8 @@ USER_TEST=
 
 EXTRA_MASTER_OPT=""
 EXTRA_MYSQL_TEST_OPT=""
+EXTRA_MYSQLDUMP_OPT=""
+EXTRA_MYSQLBINLOG_OPT=""
 USE_RUNNING_SERVER=""
 DO_GCOV=""
 DO_GDB=""
@@ -373,6 +375,10 @@ while test $# -gt 0; do
        --debug=d:t:i:A,$MYSQL_TEST_DIR/var/log/slave.trace"
       EXTRA_MYSQL_TEST_OPT="$EXTRA_MYSQL_TEST_OPT \
        --debug=d:t:A,$MYSQL_TEST_DIR/var/log/mysqltest.trace"
+      EXTRA_MYSQLDUMP_OPT="$EXTRA_MYSQLDUMP_OPT \
+       --debug=d:t:A,$MYSQL_TEST_DIR/var/log/mysqldump.trace"
+      EXTRA_MYSQLBINLOG_OPT="$EXTRA_MYSQLBINLOG_OPT \
+       --debug=d:t:A,$MYSQL_TEST_DIR/var/log/mysqlbinlog.trace"
       ;;
     --fast)
       FAST_START=1
@@ -490,8 +496,8 @@ else
   fi
 fi
 
-MYSQL_DUMP="$MYSQL_DUMP --no-defaults -uroot --socket=$MASTER_MYSOCK"
-MYSQL_BINLOG="$MYSQL_BINLOG --no-defaults --local-load=$MYSQL_TMP_DIR"
+MYSQL_DUMP="$MYSQL_DUMP --no-defaults -uroot --socket=$MASTER_MYSOCK  $EXTRA_MYSQLDUMP_OPT"
+MYSQL_BINLOG="$MYSQL_BINLOG --no-defaults --local-load=$MYSQL_TMP_DIR $EXTRA_MYSQLBINLOG_OPT"
 export MYSQL_DUMP
 export MYSQL_BINLOG
 

mysql-test/r/init_connect.result

@@ -20,5 +20,5 @@ hex(a)
 616263
 set GLOBAL init_connect="adsfsdfsdfs";
 select @a;
-ERROR HY000: Lost connection to MySQL server during query
+Got one of the listed errors
 drop table t1;

mysql-test/r/order_by.result

@@ -584,3 +584,9 @@ CREATE TABLE t1 (a INT, b INT);
 SET @id=0;
 UPDATE t1 SET a=0 ORDER BY (a=@id), b;
 DROP TABLE t1;
+CREATE TABLE t1 (  id smallint(6) unsigned NOT NULL default '0',  menu tinyint(4) NOT NULL default '0',  KEY id (id),  KEY menu (menu)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (11384, 2),(11392, 2);
+SELECT id FROM t1 WHERE id <11984 AND menu =2 ORDER BY id DESC LIMIT 1 ;
+id
+11392
+drop table t1;

mysql-test/t/init_connect-master.opt

---set-variable=init_connect="set @a='a\0c'"
+--set-variable=init_connect="set @a='a\\0c'"

mysql-test/t/init_connect.test

@@ -28,7 +28,7 @@ connection con0;
 set GLOBAL init_connect="adsfsdfsdfs";
 connect (con5,localhost,user_1,,);
 connection con5;
---error 2013
+--error 2013,2006
 select @a;
 connection con0;
 drop table t1;

mysql-test/t/order_by.test

@@ -373,3 +373,11 @@ SET @id=0;
 UPDATE t1 SET a=0 ORDER BY (a=@id), b;
 DROP TABLE t1;
 
+#
+# Bug when doing an order by on a 1 byte string (Bug #2147)
+#
+
+CREATE TABLE t1 (  id smallint(6) unsigned NOT NULL default '0',  menu tinyint(4) NOT NULL default '0',  KEY id (id),  KEY menu (menu)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (11384, 2),(11392, 2);
+SELECT id FROM t1 WHERE id <11984 AND menu =2 ORDER BY id DESC LIMIT 1 ;
+drop table t1;

sql/filesort.cc

@@ -161,8 +161,6 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
     records=table->file->estimate_number_of_rows();
     selected_records_file= 0;
   }
-  if (param.rec_length == param.ref_length && records > param.max_rows)
-    records=param.max_rows;			/* purecov: inspected */
 
   if (multi_byte_charset &&
       !(param.tmp_buffer=my_malloc(param.sort_length,MYF(MY_WME))))
@@ -192,7 +190,7 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
 		       DISK_BUFFER_SIZE, MYF(MY_WME)))
     goto err;
 
-  param.keys--;
+  param.keys--;  			/* TODO: check why we do this */
   param.sort_form= table;
   param.end=(param.local_sortorder=sortorder)+s_length;
   if ((records=find_all_keys(&param,select,sort_keys, &buffpek_pointers,
@@ -432,16 +430,6 @@ static ha_rows find_all_keys(SORTPARAM *param, SQL_SELECT *select,
 	if (write_keys(param,sort_keys,idx,buffpek_pointers,tempfile))
 	  DBUG_RETURN(HA_POS_ERROR);
 	idx=0;
-	if (param->ref_length == param->rec_length &&
-	    my_b_tell(tempfile)/param->rec_length >= param->max_rows)
-	{
-	  /*
-	    We are writing the result index file and have found all
-	    rows that we need.  Abort the sort and return the result.
-	  */
-	  error=HA_ERR_END_OF_FILE;
-	  break;			/* Found enough records */
-	}
 	indexpos++;
       }
       make_sortkey(param,sort_keys[idx++],ref_pos);

sql/item.h

@@ -129,7 +129,7 @@ public:
   virtual ~Item() { name=0; cleanup(); }		/*lint -e1509 */
   void set_name(const char *str,uint length, CHARSET_INFO *cs);
   void init_make_field(Send_field *tmp_field,enum enum_field_types type);
-  virtual void cleanup() {}
+  virtual void cleanup() { fixed=0; }
   virtual void make_field(Send_field *field);
   virtual bool fix_fields(THD *, struct st_table_list *, Item **);
   virtual int save_in_field(Field *field, bool no_conversions);

sql/item_func.cc

@@ -1782,17 +1782,25 @@ char *ull_get_key(const ULL *ull,uint *length,
   return (char*) ull->key;
 }
 
+
+static bool item_user_lock_inited= 0;
+
 void item_user_lock_init(void)
 {
   pthread_mutex_init(&LOCK_user_locks,MY_MUTEX_INIT_SLOW);
   hash_init(&hash_user_locks,system_charset_info,
 	    16,0,0,(hash_get_key) ull_get_key,NULL,0);
+  item_user_lock_inited= 1;
 }
 
 void item_user_lock_free(void)
 {
+  if (item_user_lock_inited)
+  {
+    item_user_lock_inited= 0;
     hash_free(&hash_user_locks);
     pthread_mutex_destroy(&LOCK_user_locks);
+  }
 }
 
 void item_user_lock_release(ULL *ull)
@@ -2452,7 +2460,7 @@ Item_func_get_user_var::val_str(String *str)
 {
   DBUG_ENTER("Item_func_get_user_var::val_str");
   if (!var_entry)
-    return (String*) 0;				// No such variable
+    DBUG_RETURN((String*) 0);			// No such variable
   DBUG_RETURN(var_entry->val_str(&null_value, str, decimals));
 }
 

sql/log_event.cc

@@ -3080,13 +3080,13 @@ int User_var_log_event::exec_event(struct st_relay_log_info* rli)
       float8get(real_val, val);
       it= new Item_real(real_val);
       val= (char*) &real_val;		// Pointer to value in native format
-      val_len= sizeof(real_val);
+      val_len= 8;
       break;
     case INT_RESULT:
       int_val= (longlong) uint8korr(val);
       it= new Item_int(int_val);
       val= (char*) &int_val;		// Pointer to value in native format
-      val_len= sizeof(int_val);
+      val_len= 8;
       break;
     case STRING_RESULT:
       it= new Item_string(val, val_len, charset);

sql/sql_class.h

@@ -847,8 +847,11 @@ public:
   inline void	end_time()    { time(&start_time); }
   inline void	set_time(time_t t) { time_after_lock=start_time=user_time=t; }
   inline void	lock_time()   { time(&time_after_lock); }
-  inline void	insert_id(ulonglong id)
-  { last_insert_id=id; insert_id_used=1; }
+  inline void	insert_id(ulonglong id_arg)
+  {
+    last_insert_id= id_arg;
+    insert_id_used=1;
+  }
   inline ulonglong insert_id(void)
   {
     if (!last_insert_id_used)

sql/sql_prepare.cc

@@ -888,7 +888,7 @@ bool mysql_stmt_prepare(THD *thd, char *packet, uint packet_length)
 {
   LEX *lex;
   Prepared_statement *stmt= new Prepared_statement(thd);
-
+  SELECT_LEX *sl;
   DBUG_ENTER("mysql_stmt_prepare");
 
   if (stmt == 0)
@@ -919,7 +919,7 @@ bool mysql_stmt_prepare(THD *thd, char *packet, uint packet_length)
     my_pthread_setprio(pthread_self(),WAIT_PRIOR);
 
   // save WHERE clause pointers to avoid damaging they by optimisation
-  for (SELECT_LEX *sl= thd->lex->all_selects_list;
+  for (sl= thd->lex->all_selects_list;
        sl;
        sl= sl->next_select_in_list())
   {