merged

client/mysqlcheck.c

@@ -436,8 +436,8 @@ static int process_all_tables_in_db(char *database)
   LINT_INIT(res);
   if (use_db(database))
     return 1;
-  if (!(mysql_query(sock, "SHOW TABLES") ||
-	(res = mysql_store_result(sock))))
+  if (mysql_query(sock, "SHOW TABLES") ||
+	!((res= mysql_store_result(sock))))
     return 1;
 
   if (opt_all_in_1)

mysql-test/r/rpl_set_charset.result

+slave stop;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+slave start;
+drop database if exists mysqltest1;
+create database mysqltest1 /*!40100 character set latin2 */;
+use mysqltest1;
+drop table if exists t1;
+create table t1 (a varchar(255) character set latin2, b varchar(4));
+SET CHARACTER SET cp1250_latin2;
+INSERT INTO t1 VALUES ('','80');
+INSERT INTO t1 VALUES ('','90');
+INSERT INTO t1 VALUES ('','A0');
+INSERT INTO t1 VALUES ('','B0');
+INSERT INTO t1 VALUES ('','C0');
+INSERT INTO t1 VALUES ('','D0');
+INSERT INTO t1 VALUES ('','E0');
+INSERT INTO t1 VALUES ('','F0');
+select "--- on master ---";
+--- on master ---
+--- on master ---
+select hex(a),b from t1 order by b;
+hex(a)	b
+A9A6ABAEAC	80
+B9B6BBBEBC	90
+A3A1AAAF	A0
+B3B1BAA5B5BF	B0
+C0C1C2C3C4C5C6C7C8C9CACBCCCDCECF	C0
+D0D1D2D3D4D5D6D7D8D9DADBDCDDDEDF	D0
+E0E1E2E3E4E5E6E7E8E9EAEBECEDEEEF	E0
+F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF	F0
+show binlog events from 1979;
+Log_name	Pos	Event_type	Server_id	Orig_log_pos	Info
+master-bin.001	1979	Query	1	1979	use `mysqltest1`; SET CHARACTER SET DEFAULT
+use mysqltest1;
+select "--- on slave ---";
+--- on slave ---
+--- on slave ---
+select hex(a),b from t1 order by b;
+hex(a)	b
+A9A6ABAEAC	80
+B9B6BBBEBC	90
+A3A1AAAF	A0
+B3B1BAA5B5BF	B0
+C0C1C2C3C4C5C6C7C8C9CACBCCCDCECF	C0
+D0D1D2D3D4D5D6D7D8D9DADBDCDDDEDF	D0
+E0E1E2E3E4E5E6E7E8E9EAEBECEDEEEF	E0
+F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF	F0
+drop table t1;
+drop database mysqltest1;

mysql-test/t/rpl_set_charset.test

+source include/master-slave.inc;
+--disable_warnings
+drop database if exists mysqltest1;
+# 4.1 bases its conversion on the db's charset,
+# while 4.0 uses the part of "SET CHARACTER SET" after "_".
+# So for 4.1 we add a clause to CREATE DATABASE.
+create database mysqltest1 /*!40100 character set latin2 */;
+use mysqltest1;
+drop table if exists t1;
+--enable_warnings
+create table t1 (a varchar(255) character set latin2, b varchar(4));
+SET CHARACTER SET cp1250_latin2;
+INSERT INTO t1 VALUES ('ŠŒŽ','80');
+INSERT INTO t1 VALUES ('šœžŸ','90');
+INSERT INTO t1 VALUES ('£¥ª¯','A0');
+INSERT INTO t1 VALUES ('³¹º¼¾¿','B0');
+INSERT INTO t1 VALUES ('ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ','C0');
+INSERT INTO t1 VALUES ('ÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß','D0');
+INSERT INTO t1 VALUES ('àáâãäåæçèéêëìíîï','E0');
+INSERT INTO t1 VALUES ('ðñòóôõö÷øùúûüýþÿ','F0');
+select "--- on master ---";
+select hex(a),b from t1 order by b;
+# It's complicated to verify that the charset is reset to default in
+# the binlog after each query, except by checking the binlog. When you
+# merge this into 4.1/5.0, the 1979 will have to be changed; all you have
+# to do is read the var/log/master-bin.0*01 with mysqlbinlog, verify
+# that a SET CHARACTER SET DEFAULT is just after the last INSERT, and
+# replace 1979 by its position (the "# at" line above the SET).
+show binlog events from 1979;
+save_master_pos;
+connection slave;
+sync_with_master;
+use mysqltest1;
+select "--- on slave ---";
+select hex(a),b from t1 order by b;
+connection master;
+drop table t1;
+save_master_pos;
+connection slave;
+sync_with_master;
+connection master;
+drop database mysqltest1;

scripts/mysqld_safe.sh

@@ -322,23 +322,13 @@ do
     # but should work for the rest of the servers.
     # The only thing is ps x => redhat 5 gives warnings when using ps -x.
     # kill -9 is used or the process won't react on the kill.
-    if test -n "$mysql_tcp_port"
-    then
-      numofproces=`ps xa | grep -v "grep" | grep $ledir/$MYSQLD| grep -c "port=$mysql_tcp_port"`
-    else
-      numofproces=`ps xa | grep -v "grep" | grep -c $ledir/$MYSQLD`
-    fi
+    numofproces=`ps xa | grep -v "grep" | grep "$ledir/$MYSQLD\>" | grep -c "pid-file=$pid_file"`
 
     echo -e "\nNumber of processes running now: $numofproces" | tee -a $err_log
     I=1
     while test "$I" -le "$numofproces"
     do 
-      if test -n "$mysql_tcp_port"
-      then
-        PROC=`ps xa | grep "$ledir/$MYSQLD\>" | grep -v "grep" | grep "port=$mysql_tcp_port" | sed -n '$p'` 
-      else
-        PROC=`ps xa | grep "$ledir/$MYSQLD\>" | grep -v "grep" | sed -n '$p'` 
-      fi
+      PROC=`ps xa | grep "$ledir/$MYSQLD\>" | grep -v "grep" | grep "pid-file=$pid_file" | sed -n '$p'` 
 
       for T in $PROC
       do
@@ -359,3 +349,4 @@ done
 
 echo "`date +'%y%m%d %H:%M:%S'`  mysqld ended" | tee -a $err_log
 echo "" | tee -a $err_log
+

sql/log.cc

@@ -1426,15 +1426,6 @@ COLLATION_CONNECTION=%u,COLLATION_DATABASE=%u,COLLATION_SERVER=%u",
         if (e.write(file))
           goto err;
       }
-#if MYSQL_VERSION_ID < 40100      
-      if (thd->variables.convert_set)
-      {
-	Query_log_event e(thd, "SET CHARACTER SET DEFAULT", 25, 0);
-	e.set_log_pos(this);
-	if (e.write(file))
-	  goto err;
-      }
-#endif
     }
 
     /*
@@ -1932,19 +1923,6 @@ void MYSQL_LOG::set_max_size(ulong max_size_arg)
 }
 
 
-Disable_binlog::Disable_binlog(THD *thd_arg) : 
-  thd(thd_arg), save_options(thd_arg->options)
-{
-  thd_arg->options&= ~OPTION_BIN_LOG;
-}
-
-
-Disable_binlog::~Disable_binlog()
-{
-  thd->options= save_options;
-}
-
-
 /*
   Check if a string is a valid number
 

sql/mysqld.cc

@@ -327,6 +327,7 @@ const char *opt_date_time_formats[3];
 
 char *language_ptr, *default_collation_name, *default_character_set_name;
 char mysql_data_home_buff[2], *mysql_data_home=mysql_real_data_home;
+struct passwd *user_info;
 char server_version[SERVER_VERSION_LENGTH];
 char *mysqld_unix_port, *opt_mysql_tmpdir;
 char *my_bind_addr_str;
@@ -1047,72 +1048,98 @@ static void set_ports()
 #ifndef EMBEDDED_LIBRARY
 /* Change to run as another user if started with --user */
 
-static void set_user(const char *user)
+static struct passwd *check_user(const char *user)
 {
 #if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
-  struct passwd *ent;
+  struct passwd *user_info;
   uid_t user_id= geteuid();
 
-  // don't bother if we aren't superuser
+  // Don't bother if we aren't superuser
   if (user_id)
   {
     if (user)
     {
-      /* Don't give a warning, if real user is same as given with --user */
-      struct passwd *user_info= getpwnam(user);
+      // Don't give a warning, if real user is same as given with --user
+      user_info= getpwnam(user);
       if ((!user_info || user_id != user_info->pw_uid) &&
 	  global_system_variables.log_warnings)
         sql_print_warning(
                     "One can only use the --user switch if running as root\n");
     }
-    return;
+    return NULL;
   }
   if (!user)
   {
     if (!opt_bootstrap)
     {
-      fprintf(stderr,"Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
+      sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
       unireg_abort(1);
     }
-    return;
+    return NULL;
   }
   if (!strcmp(user,"root"))
-    return;				// Avoid problem with dynamic libraries
+    return NULL;                        // Avoid problem with dynamic libraries
 
-  uid_t uid;
-  if (!(ent = getpwnam(user)))
+  if (!(user_info= getpwnam(user)))
   {
-    // allow a numeric uid to be used
+    // Allow a numeric uid to be used
     const char *pos;
-    for (pos=user; my_isdigit(mysqld_charset,*pos); pos++) ;
+    for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ;
     if (*pos)                                   // Not numeric id
-    {
-      fprintf(stderr,"Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
-      unireg_abort(1);
-    }
-    uid=atoi(user);				// Use numberic uid
+      goto err;
+    if (!(user_info= getpwuid(atoi(user))))
+      goto err;
+    else
+      return user_info;
   }
   else
-  {
+    return user_info;
+
+err:
+  sql_print_error("Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
+#endif
+  return NULL;
+}
+
+static void set_user(const char *user, struct passwd *user_info)
+{
+#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+  DBUG_ASSERT(user_info);
 #ifdef HAVE_INITGROUPS
-    initgroups((char*) user,ent->pw_gid);
+  initgroups((char*) user,user_info->pw_gid);
 #endif
-    if (setgid(ent->pw_gid) == -1)
+  if (setgid(user_info->pw_gid) == -1)
   {
     sql_perror("setgid");
     unireg_abort(1);
   }
-    uid=ent->pw_uid;
+  if (setuid(user_info->pw_uid) == -1)
+  {
+    sql_perror("setuid");
+    unireg_abort(1);
   }
+#endif
+}
+
 
-  if (setuid(uid) == -1)
+static void set_effective_user(struct passwd *user_info)
+{
+#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
+  DBUG_ASSERT(user_info);
+  if (setegid(user_info->pw_gid) == -1)
   {
-    sql_perror("setuid");
+    sql_perror("setegid");
+    unireg_abort(1);
+  }
+  if (seteuid(user_info->pw_uid) == -1)
+  {
+    sql_perror("seteuid");
     unireg_abort(1);
   }
 #endif
 }
 
+
 /* Change root user if started with  --chroot */
 
 static void set_root(const char *path)
@@ -1188,7 +1215,16 @@ static void server_init(void)
       unireg_abort(1);
     }
   }
-  set_user(mysqld_user);		// Works also with mysqld_user==NULL
+
+  if ((user_info= check_user(mysqld_user)))
+  {
+#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
+    if (locked_in_memory) // getuid() == 0 here
+      set_effective_user(user_info);
+    else
+#endif
+      set_user(mysqld_user, user_info);
+  }
 
 #ifdef __NT__
   /* create named pipe */
@@ -2619,18 +2655,25 @@ server.");
   dflt_key_cache= sql_key_cache;
 
 #if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
-  if (locked_in_memory && !geteuid())
+  if (locked_in_memory && !getuid())
   {
+    if (seteuid(0) == -1)
+    {                        // this should never happen
+      sql_perror("seteuid");
+      unireg_abort(1);
+    }
     if (mlockall(MCL_CURRENT))
     {
       if (global_system_variables.log_warnings)
 	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
       locked_in_memory= 0;
     }
+    if (user_info)
+      set_user(mysqld_user, user_info);
   }
-#else
-  locked_in_memory=0;
+  else
 #endif
+    locked_in_memory=0;
 
   ft_init_stopwords();
 

sql/sql_analyse.cc

@@ -799,6 +799,13 @@ void field_real::get_opt_type(String *answer,
     if (min_arg >= 0)
       answer->append(" UNSIGNED");
   }
+  else if (item->decimals == NOT_FIXED_DEC)
+  {
+    if (min_arg >= -FLT_MAX && max_arg <= FLT_MAX)
+      answer->append("FLOAT", 5);      
+    else
+      answer->append("DOUBLE", 6);
+  }
   else
   {
     if (min_arg >= -FLT_MAX && max_arg <= FLT_MAX)

sql/sql_class.h

@@ -1019,27 +1019,6 @@ public:
 #define SYSTEM_THREAD_SLAVE_IO 2
 #define SYSTEM_THREAD_SLAVE_SQL 4
 
-/*
-  Disables binary logging for one thread, and resets it back to what it was
-  before being disabled. 
-  Some functions (like the internal mysql_create_table() when it's called by
-  mysql_alter_table()) must NOT write to the binlog (binlogging is done at the
-  at a later stage of the command already, and must be, for locking reasons);
-  so we internally disable it temporarily by creating the Disable_binlog
-  object and reset the state by destroying the object (don't forget that! or
-  write code so that the object gets automatically destroyed when leaving a
-  block, see example in sql_table.cc).
-*/
-class Disable_binlog {
-private:
-  THD *thd;
-  ulong save_options;
-public:
-  Disable_binlog(THD *thd_arg);
-  ~Disable_binlog();
-};
-
-
 /*
   Used to hold information about file and file structure in exchainge 
   via non-DB file (...INTO OUTFILE..., ...LOAD DATA...)

sql/sql_table.cc

@@ -29,7 +29,14 @@
 #include <io.h>
 #endif
 
-const char *primary_key_name= "PRIMARY";
+#define tmp_disable_binlog(A)       \
+  ulong save_options= (A)->options; \
+  (A)->options&= ~OPTION_BIN_LOG;
+
+#define reenable_binlog(A)          (A)->options= save_options;
+
+//extern HASH open_cache; // leftover from the merge. to be deleted
+static const char *primary_key_name="PRIMARY";
 
 static bool check_if_keyname_exists(const char *name,KEY *start, KEY *end);
 static char *make_unique_key_name(const char *field_name,KEY *start,KEY *end);
@@ -1348,10 +1355,9 @@ TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
 			       MYSQL_LOCK **lock)
 {
   TABLE tmp_table;		// Used during 'create_field()'
-  TABLE *table;
+  TABLE *table= 0;
   tmp_table.table_name=0;
   uint select_field_count= items->elements;
-  Disable_binlog disable_binlog(thd);
   DBUG_ENTER("create_table_from_items");
 
   /* Add selected items to field list */
@@ -1381,23 +1387,26 @@ TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
     extra_fields->push_back(cr_field);
   }
   /* create and lock table */
-  /* QQ: This should be done atomic ! */
-  /* We don't log the statement, it will be logged later */
-  if (mysql_create_table(thd,db,name,create_info,*extra_fields,
-			 *keys,0,select_field_count))
-    DBUG_RETURN(0);
+  /* QQ: create and open should be done atomic ! */
   /*
+    We don't log the statement, it will be logged later.
     If this is a HEAP table, the automatic DELETE FROM which is written to the
     binlog when a HEAP table is opened for the first time since startup, must
     not be written: 1) it would be wrong (imagine we're in CREATE SELECT: we
     don't want to delete from it) 2) it would be written before the CREATE
-    TABLE, which is a wrong order. So we keep binary logging disabled.
+    TABLE, which is a wrong order. So we keep binary logging disabled when we
+    open_table().
   */
-  if (!(table=open_table(thd,db,name,name,(bool*) 0)))
+  tmp_disable_binlog(thd);
+  if (mysql_create_table(thd,db,name,create_info,*extra_fields,
+			 *keys,0,select_field_count))
   {
+    if (!(table=open_table(thd,db,name,name,(bool*) 0)))
       quick_rm_table(create_info->db_type,db,table_case_name(create_info,name));
-    DBUG_RETURN(0);
   }
+  reenable_binlog(thd);
+  if (!table)
+    DBUG_RETURN(0);
   table->reginfo.lock_type=TL_WRITE;
   if (!((*lock)=mysql_lock_tables(thd,&table,1)))
   {
@@ -3018,11 +3027,12 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
   else
     create_info->data_file_name=create_info->index_file_name=0;
   {
-    /* We don't log the statement, it will be logged later */
-    Disable_binlog disable_binlog(thd);
-    if ((error=mysql_create_table(thd, new_db, tmp_name,
-                                  create_info,
-                                  create_list,key_list,1,0)))
+    /* We don't log the statement, it will be logged later. */
+    tmp_disable_binlog(thd);
+    error= mysql_create_table(thd, new_db, tmp_name,
+                              create_info,create_list,key_list,1,0);
+    reenable_binlog(thd);
+    if (error)
       DBUG_RETURN(error);
   }
   if (table->tmp_table)