Merge sinisa@work.mysql.com:/home/bk/mysql-4.1

into sinisa.nasamreza.org:/mnt/work/mysql-4.1

.bzrignore

@@ -597,3 +597,4 @@ vio/test-sslclient
 vio/test-sslserver
 vio/viotest-ssl
 scripts/fill_help_tables.sql
+scripts/fill_help_tables

client/mysqltest.c

@@ -991,7 +991,8 @@ int do_sync_with_master2(const char* p)
 	mysql_errno(mysql), mysql_error(mysql));
 
   if (!(last_result = res = mysql_store_result(mysql)))
-    die("line %u: mysql_store_result() returned NULL", start_lineno);
+    die("line %u: mysql_store_result() returned NULL for '%s'", start_lineno,
+	query_buf);
   if (!(row = mysql_fetch_row(res)))
     die("line %u: empty result in %s", start_lineno, query_buf);
   if (!row[0])
@@ -1021,17 +1022,19 @@ int do_save_master_pos()
   MYSQL_RES* res;
   MYSQL_ROW row;
   MYSQL* mysql = &cur_con->mysql;
+  const char *query;
   int rpl_parse;
 
   rpl_parse = mysql_rpl_parse_enabled(mysql);
   mysql_disable_rpl_parse(mysql);
 
-  if (mysql_query(mysql, "show master status"))
+  if (mysql_query(mysql, query= "show master status"))
     die("At line %u: failed in show master status: %d: %s", start_lineno,
 	mysql_errno(mysql), mysql_error(mysql));
 
   if (!(last_result =res = mysql_store_result(mysql)))
-    die("line %u: mysql_store_result() retuned NULL", start_lineno);
+    die("line %u: mysql_store_result() retuned NULL for '%s'", start_lineno,
+	query);
   if (!(row = mysql_fetch_row(res)))
     die("line %u: empty result in show master status", start_lineno);
   strnmov(master_pos.file, row[0], sizeof(master_pos.file)-1);

libmysqld/lib_sql.cc

@@ -373,13 +373,22 @@ bool Protocol::send_fields(List<Item> *list, uint flag)
     Send_field server_field;
     item->make_field(&server_field);
 
+    client_field->db=	  strdup_root(alloc, server_field.db_name);
     client_field->table=  strdup_root(alloc, server_field.table_name);
-    client_field->name=   strdup_root(alloc,server_field.col_name);
+    client_field->name=   strdup_root(alloc, server_field.col_name);
+    client_field->org_table= strdup_root(alloc, server_field.org_table_name);
+    client_field->org_name=  strdup_root(alloc, server_field.org_col_name);
     client_field->length= server_field.length;
     client_field->type=   server_field.type;
     client_field->flags= server_field.flags;
     client_field->decimals= server_field.decimals;
-
+    client_field->db_length=		strlen(client_field->db);
+    client_field->table_length=		strlen(client_field->table);
+    client_field->name_length=		strlen(client_field->name);
+    client_field->org_name_length=	strlen(client_field->org_name);
+    client_field->org_table_length=	strlen(client_field->org_table);
+    client_field->charsetnr=		server_field.charsetnr;
+    
     if (INTERNAL_NUM_FIELD(client_field))
       client_field->flags|= NUM_FLAG;
 

mysql-test/r/rpl_user_variables.result

@@ -4,9 +4,6 @@ reset master;
 reset slave;
 drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
 start slave;
-stop slave;
-reset master;
-drop table if exists t1;
 create table t1(n char(30));
 set @i1:=12345678901234, @i2:=-12345678901234, @i3:=0, @i4:=-1;
 set @s1:='This is a test', @r1:=12.5, @r2:=-12.5;
@@ -23,7 +20,6 @@ set @q:='abc';
 insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'));
 set @a:=5;
 insert into t1 values (@a),(@a);
-start slave;
 select * from t1;
 n
 12345678901234
@@ -59,20 +55,20 @@ slave-bin.000001	396	User var	2	396	@r1=12.5
 slave-bin.000001	439	User var	2	439	@r2=-12.5
 slave-bin.000001	482	Query	1	482	use `test`; insert into t1 values (@r1), (@r2)
 slave-bin.000001	551	User var	2	551	@s1='This is a test'
-slave-bin.000001	601	User var	2	601	@s2=''
-slave-bin.000001	637	User var	2	637	@s3='abc'def'
-slave-bin.000001	680	User var	2	680	@s4='abc\def'
-slave-bin.000001	723	User var	2	723	@s5='abc'def'
-slave-bin.000001	766	Query	1	766	use `test`; insert into t1 values (@s1), (@s2), (@s3), (@s4), (@s5)
-slave-bin.000001	856	User var	2	856	@n1=NULL
-slave-bin.000001	882	Query	1	882	use `test`; insert into t1 values (@n1)
-slave-bin.000001	944	Query	1	944	use `test`; insert into t1 values (@n2)
-slave-bin.000001	1006	Query	1	1006	use `test`; insert into t1 values (@a:=0), (@a:=@a+1), (@a:=@a+1)
-slave-bin.000001	1094	User var	2	1094	@a='2'
-slave-bin.000001	1130	Query	1	1130	use `test`; insert into t1 values (@a+(@b:=@a+1))
-slave-bin.000001	1202	User var	2	1202	@q='abc'
-slave-bin.000001	1240	Query	1	1240	use `test`; insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'))
-slave-bin.000001	1344	User var	2	1344	@a=5
-slave-bin.000001	1386	Query	1	1386	use `test`; insert into t1 values (@a),(@a)
+slave-bin.000001	600	User var	2	600	@s2=''
+slave-bin.000001	635	User var	2	635	@s3='abc'def'
+slave-bin.000001	677	User var	2	677	@s4='abc\def'
+slave-bin.000001	719	User var	2	719	@s5='abc'def'
+slave-bin.000001	761	Query	1	761	use `test`; insert into t1 values (@s1), (@s2), (@s3), (@s4), (@s5)
+slave-bin.000001	851	User var	2	851	@n1=NULL
+slave-bin.000001	877	Query	1	877	use `test`; insert into t1 values (@n1)
+slave-bin.000001	939	Query	1	939	use `test`; insert into t1 values (@n2)
+slave-bin.000001	1001	Query	1	1001	use `test`; insert into t1 values (@a:=0), (@a:=@a+1), (@a:=@a+1)
+slave-bin.000001	1089	User var	2	1089	@a='2'
+slave-bin.000001	1124	Query	1	1124	use `test`; insert into t1 values (@a+(@b:=@a+1))
+slave-bin.000001	1196	User var	2	1196	@q='abc'
+slave-bin.000001	1233	Query	1	1233	use `test`; insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'))
+slave-bin.000001	1337	User var	2	1337	@a=5
+slave-bin.000001	1379	Query	1	1379	use `test`; insert into t1 values (@a),(@a)
 drop table t1;
 stop slave;

mysql-test/r/type_blob.result

@@ -130,6 +130,10 @@ select d from t1 having d like "%HELLO%";
 d
 HELLO
 HELLO MY
+select d from t1 having d like "%HE%LLO%";
+d
+HELLO
+HELLO MY
 select t from t1 order by t;
 t
 NULL

mysql-test/t/rpl_user_variables.test

+#
+# Test of replicating user variables
+#
 source include/master-slave.inc;
-connection master;
-save_master_pos;
-connection slave;
-sync_with_master;
-stop slave;
-reset master;
-connection master;
---disable_warnings
-drop table if exists t1;
---enable_warnings
+
 create table t1(n char(30));
 set @i1:=12345678901234, @i2:=-12345678901234, @i3:=0, @i4:=-1;
 set @s1:='This is a test', @r1:=12.5, @r2:=-12.5;
@@ -27,7 +21,6 @@ set @a:=5;
 insert into t1 values (@a),(@a);
 save_master_pos;
 connection slave;
-start slave;
 sync_with_master;
 select * from t1;
 show binlog events from 141;

mysql-test/t/type_blob.test

@@ -87,6 +87,7 @@ select b from t1 where b like "%HELLO%";
 select d from t1 where d like "%HELLO%";
 select c from t1 having c like "%HELLO%";
 select d from t1 having d like "%HELLO%";
+select d from t1 having d like "%HE%LLO%";
 select t from t1 order by t;
 select c from t1 order by c;
 select b from t1 order by b;

sql/item.cc

@@ -1203,18 +1203,22 @@ bool Item_ref::fix_fields(THD *thd,TABLE_LIST *tables, Item **reference)
   max_length= (*ref)->max_length;
   maybe_null= (*ref)->maybe_null;
   decimals=   (*ref)->decimals;
+  set_charset((*ref)->charset());
   fixed= 1;
+
   if (ref && (*ref)->check_cols(1))
     return 1;
   return 0;
 }
 
+
 bool Item_default_value::eq(const Item *item, bool binary_cmp) const
 {
   return item->type() == DEFAULT_VALUE_ITEM && 
     ((Item_default_value *)item)->arg->eq(arg, binary_cmp);
 }
 
+
 bool Item_default_value::fix_fields(THD *thd, struct st_table_list *table_list, Item **items)
 {
   if (!arg)

sql/item_cmpfunc.cc

@@ -1129,11 +1129,16 @@ void in_string::set(uint pos,Item *item)
   String *res=item->val_str(str);
   if (res && res != str)
     *str= *res;
-  // BAR TODO: I'm not sure this is absolutely correct
   if (!str->charset())
-      str->set_charset(default_charset_info);
+  {
+    CHARSET_INFO *cs;
+    if (!(cs= item->charset()))
+      cs= default_charset_info;		// Should never happen for STR items
+    str->set_charset(cs);
+  }
 }
 
+
 byte *in_string::get_value(Item *item)
 {
   return (byte*) item->val_str(&tmp);
@@ -1692,6 +1697,7 @@ longlong Item_func_isnull::val_int()
   return args[0]->is_null() ? 1: 0;
 }
 
+
 longlong Item_func_isnotnull::val_int()
 {
   return args[0]->is_null() ? 0 : 1;
@@ -1713,9 +1719,6 @@ longlong Item_func_like::val_int()
     return 0;
   }
   null_value=0;
-  if ((res->charset()->state & MY_CS_BINSORT) ||
-      (res2->charset()->state & MY_CS_BINSORT))
-    set_charset(&my_charset_bin);
   if (canDoTurboBM)
     return turboBM_matches(res->ptr(), res->length()) ? 1 : 0;
   return my_wildcmp(charset(),
@@ -1748,10 +1751,19 @@ bool Item_func_like::fix_fields(THD *thd, TABLE_LIST *tlist, Item ** ref)
     return 1;
 
   /*
-    TODO--we could do it for non-const, but we'd have to
-    recompute the tables for each row--probably not worth it.
+    Comparision is by default done according to character set of LIKE
+  */
+  if (binary_cmp)
+    set_charset(&my_charset_bin);
+  else
+    set_charset(args[1]->charset());
+
+  /*
+    We could also do boyer-more for non-const items, but as we would have to
+    recompute the tables for each row it's not worth it.
   */
-  if (args[1]->const_item() && !(specialflag & SPECIAL_NO_NEW_FUNC))
+  if (args[1]->const_item() && !use_strnxfrm(charset()) &&
+      !(specialflag & SPECIAL_NO_NEW_FUNC))
   {
     String* res2 = args[1]->val_str(&tmp_value2);
     if (!res2)

sql/item_func.cc

@@ -2083,7 +2083,8 @@ longlong
 Item_func_set_user_var::val_int()
 {
   longlong value=args[0]->val_int();
-  update_hash((void*) &value,sizeof(longlong),INT_RESULT, default_charset_info);
+  update_hash((void*) &value, sizeof(longlong), INT_RESULT,
+	      default_charset_info);
   return value;
 }
 
@@ -2092,9 +2093,10 @@ Item_func_set_user_var::val_str(String *str)
 {
   String *res=args[0]->val_str(str);
   if (!res)					// Null value
-    update_hash((void*) 0, 0, STRING_RESULT, default_charset_info);
+    update_hash((void*) 0, 0, STRING_RESULT, &my_charset_bin);
   else
-    update_hash(res->c_ptr(),res->length()+1,STRING_RESULT,res->charset());
+    update_hash((void*) res->ptr(), res->length(), STRING_RESULT,
+		res->charset());
   return res;
 }
 
@@ -2129,13 +2131,13 @@ Item_func_get_user_var::val_str(String *str)
     return NULL;
   switch (entry->type) {
   case REAL_RESULT:
-    str->set(*(double*) entry->value,decimals,thd_charset());
+    str->set(*(double*) entry->value,decimals, &my_charset_bin);
     break;
   case INT_RESULT:
-    str->set(*(longlong*) entry->value,thd_charset());
+    str->set(*(longlong*) entry->value, &my_charset_bin);
     break;
   case STRING_RESULT:
-    if (str->copy(entry->value, entry->length-1, entry->var_charset))
+    if (str->copy(entry->value, entry->length, entry->var_charset))
     {
       null_value=1;
       return NULL;
@@ -2191,8 +2193,6 @@ longlong Item_func_get_user_var::val_int()
   return LL(0);					// Impossible
 }
 
-/* From sql_parse.cc */
-extern bool is_update_query(enum enum_sql_command command);
 
 void Item_func_get_user_var::fix_length_and_dec()
 {
@@ -2207,13 +2207,15 @@ void Item_func_get_user_var::fix_length_and_dec()
     if (opt_bin_log && is_update_query(thd->lex.sql_command) &&
 	var_entry->used_query_id != thd->query_id)
     {
+      uint size;
       /*
-	First we need to store value of var_entry, when the next situation appers:
+	First we need to store value of var_entry, when the next situation
+	appers:
         > set @a:=1;
 	> insert into t1 values (@a), (@a:=@a+1), (@a:=@a+1);
 	We have to write to binlog value @a= 1;
       */
-      uint size= ALIGN_SIZE(sizeof(BINLOG_USER_VAR_EVENT)) + var_entry->length;      
+      size= ALIGN_SIZE(sizeof(BINLOG_USER_VAR_EVENT)) + var_entry->length;      
       if (!(user_var_event= (BINLOG_USER_VAR_EVENT *) thd->alloc(size)))
         goto err;
 
@@ -2240,6 +2242,7 @@ void Item_func_get_user_var::fix_length_and_dec()
     }
   }
   return;
+
 err:
   thd->fatal_error();
   return;
@@ -2247,7 +2250,9 @@ err:
 
 
 bool Item_func_get_user_var::const_item() const
-{ return var_entry && current_thd->query_id != var_entry->update_query_id; }
+{
+  return var_entry && current_thd->query_id != var_entry->update_query_id;
+}
 
 
 enum Item_result Item_func_get_user_var::result_type() const
@@ -2275,14 +2280,9 @@ bool Item_func_get_user_var::eq(const Item *item, bool binary_cmp) const
   if (this == item)
     return 1;					// Same item is same.
   /* Check if other type is also a get_user_var() object */
-#ifdef FIX_THIS
-  if (item->eq == &Item_func_get_user_var::eq)
-    return 0;
-#else
   if (item->type() != FUNC_ITEM ||
       ((Item_func*) item)->func_name() != func_name())
     return 0;
-#endif
   Item_func_get_user_var *other=(Item_func_get_user_var*) item;
   return (name.length == other->name.length &&
 	  !memcmp(name.str, other->name.str, name.length));

sql/log_event.h

@@ -635,7 +635,7 @@ public:
   ulong val_len;
   Item_result type;
   uint charset_number;
-  byte is_null;
+  bool is_null;
 #ifndef MYSQL_CLIENT
   User_var_log_event(THD* thd_arg, char *name_arg, uint name_len_arg,
                      char *val_arg, ulong val_len_arg, Item_result type_arg,

sql/mini_client.cc

@@ -830,13 +830,15 @@ mc_mysql_connect(MYSQL *mysql,const char *host, const char *user,
     }
   }
   else
+  {
     /*
-     Real scramble is only sent to old servers. This can be blocked  
-     by calling mysql_options(MYSQL *, MYSQL_SECURE_CONNECT, (char*) &1);
+      Real scramble is only sent to old servers. This can be blocked  
+      by calling mysql_options(MYSQL *, MYSQL_SECURE_CONNECT, (char*) &1);
     */
     end=scramble(strend(buff+5)+1, mysql->scramble_buff, passwd,
                  (my_bool) (mysql->protocol_version == 9));
 
+  }
   /* Add database if needed */
   if (db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
   {

sql/mysql_priv.h

@@ -346,6 +346,7 @@ int quick_rm_table(enum db_type base,const char *db,
 bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
 bool mysql_change_db(THD *thd,const char *name);
 void mysql_parse(THD *thd,char *inBuf,uint length);
+bool is_update_query(enum enum_sql_command command);
 void free_items(Item *item);
 bool alloc_query(THD *thd, char *packet, ulong packet_length);
 void mysql_init_select(LEX *lex);

sql/protocol.cc

@@ -295,11 +295,12 @@ void
 send_ok(THD *thd, ha_rows affected_rows, ulonglong id, const char *message)
 {
   NET *net= &thd->net;
-  if (net->no_send_ok || !net->vio)	// hack for re-parsing queries
-    return;
-
   char buff[MYSQL_ERRMSG_SIZE+10],*pos;
   DBUG_ENTER("send_ok");
+
+  if (net->no_send_ok || !net->vio)	// hack for re-parsing queries
+    DBUG_VOID_RETURN;
+
   buff[0]=0;					// No fields
   pos=net_store_length(buff+1,(ulonglong) affected_rows);
   pos=net_store_length(pos, (ulonglong) id);

sql/sql_acl.cc

@@ -485,7 +485,7 @@ void prepare_scramble(THD *thd, ACL_USER *acl_user,char* prepared_scramble)
   Get master privilges for user (priviliges for all tables).
   Required before connecting to MySQL
 
-  as we have 2 stage handshake now we cache user not to lookup
+  As we have 2 stage handshake now we cache user not to lookup
   it second time. At the second stage we do not lookup user in case
   we already know it;
 
@@ -494,14 +494,13 @@ void prepare_scramble(THD *thd, ACL_USER *acl_user,char* prepared_scramble)
 ulong acl_getroot(THD *thd, const char *host, const char *ip, const char *user,
 		  const char *password,const char *message,char **priv_user,
 		  bool old_ver, USER_RESOURCES  *mqh, char *prepared_scramble,
-                  uint *cur_priv_version,ACL_USER** hint_user)
+                  uint *cur_priv_version, ACL_USER **cached_user)
 {
   ulong user_access=NO_ACCESS;
   *priv_user= (char*) user;
   bool password_correct= 0;
-  int stage= (*hint_user != NULL); /* NULL passed as first stage */
+  int stage= (*cached_user != NULL); /* NULL passed as first stage */
   ACL_USER *acl_user= NULL;
-
   DBUG_ENTER("acl_getroot");
 
   bzero(mqh,sizeof(USER_RESOURCES));
@@ -512,7 +511,6 @@ ulong acl_getroot(THD *thd, const char *host, const char *ip, const char *user,
   }
   VOID(pthread_mutex_lock(&acl_cache->lock));
 
-
   /*
     Get possible access from user_list. This is or'ed to others not
     fully specified
@@ -520,9 +518,10 @@ ulong acl_getroot(THD *thd, const char *host, const char *ip, const char *user,
     If we have cached user use it, in other case look it up.
   */
 
-  if (stage && (*cur_priv_version==priv_version))
-    acl_user=*hint_user;
+  if (stage && (*cur_priv_version == priv_version))
+    acl_user= *cached_user;
   else
+  {
     for (uint i=0 ; i < acl_users.elements ; i++)
     {
       ACL_USER *acl_user_search=dynamic_element(&acl_users,i,ACL_USER*);
@@ -531,60 +530,59 @@ ulong acl_getroot(THD *thd, const char *host, const char *ip, const char *user,
         if (compare_hostname(&acl_user_search->host,host,ip))
         {
           /* Found mathing user */
-          acl_user=acl_user_search;
+          acl_user= acl_user_search;
           /* Store it as a cache */
-          *hint_user=acl_user;
-          *cur_priv_version=priv_version;
+          *cached_user= acl_user;
+          *cur_priv_version= priv_version;
           break;
         }
       }
     }
-
+  }
 
   /* Now we have acl_user found and may start our checks */
 
   if (acl_user)
   {
     /* Password should present for both or absend for both */
-    if (!acl_user->password && !*password ||
-       (acl_user->password && *password))
+    if (!acl_user->password && !*password)
+      password_correct=1;
+    else if (!acl_user->password || !*password)
     {
-      /* Quick check and accept for empty passwords*/
-      if (!acl_user->password && !*password)
-        password_correct=1;
-      else /* Normal password presents */
+      *cached_user= 0;				// Impossible to connect
+    }
+    else
+    {
+      /* New version password is checked differently */
+      if (acl_user->pversion)
       {
-        /* New version password is checked differently */
-        if (acl_user->pversion)
-        {
-          if (stage) /* We check password only on the second stage */
-          {
-            if (!validate_password(password,message,acl_user->salt))
-              password_correct=1;
-          }
-          else  /* First stage - just prepare scramble */
-            prepare_scramble(thd,acl_user,prepared_scramble);
-        }
-        /* Old way to check password */
-        else
-        {
-          /* Checking the scramble at any stage. First - old clients */
-          if (!check_scramble(password,message,acl_user->salt,
-	       (my_bool) old_ver))
-            password_correct=1;
-	  else if (!stage)		/* Here if password incorrect  */
-	  {
-	    /* At the first stage - prepare scramble */
-	    prepare_scramble(thd,acl_user,prepared_scramble);
-	  }
-        }
+	if (stage) /* We check password only on the second stage */
+	{
+	  if (!validate_password(password,message,acl_user->salt))
+	    password_correct=1;
+	}
+	else  /* First stage - just prepare scramble */
+	  prepare_scramble(thd,acl_user,prepared_scramble);
+      }
+      /* Old way to check password */
+      else
+      {
+	/* Checking the scramble at any stage. First - old clients */
+	if (!check_scramble(password,message,acl_user->salt,
+			    (my_bool) old_ver))
+	  password_correct=1;
+	else if (!stage)		/* Here if password incorrect  */
+	{
+	  /* At the first stage - prepare scramble */
+	  prepare_scramble(thd,acl_user,prepared_scramble);
+	}
       }
     }
   }
 
   /* If user not found password_correct will also be zero */
   if (!password_correct)
-   goto unlock_and_exit;
+    goto unlock_and_exit;
 
   /* OK. User found and password checked continue validation */
 
@@ -1120,7 +1118,10 @@ bool change_password(THD *thd, const char *host, const char *user,
   if (check_change_password(thd, host, user))
     DBUG_RETURN(1);
 
-  /* password should always be 0,16 or 45 chars; simple hack to avoid cracking */
+  /*
+    password should always be 0,16 or 45 chars;
+    Simple hack to avoid cracking
+  */
   length=(uint) strlen(new_password);
 
   if (length!=45)

sql/sql_analyse.cc

@@ -89,6 +89,7 @@ proc_analyse_init(THD *thd, ORDER *param, select_result *result,
     if ((*param->item)->type() != Item::INT_ITEM ||
 	(*param->item)->val() < 0)
     {
+      delete pc;
       my_error(ER_WRONG_PARAMETERS_TO_PROCEDURE, MYF(0), proc_name);
       DBUG_RETURN(0);
     }
@@ -103,6 +104,7 @@ proc_analyse_init(THD *thd, ORDER *param, select_result *result,
     if ((*param->item)->type() != Item::INT_ITEM ||
 	(*param->item)->val() < 0)
     {
+      delete pc;
       my_error(ER_WRONG_PARAMETERS_TO_PROCEDURE, MYF(0), proc_name);
       DBUG_RETURN(0);
     }
@@ -111,6 +113,7 @@ proc_analyse_init(THD *thd, ORDER *param, select_result *result,
   else if ((*param->item)->type() != Item::INT_ITEM ||
 	   (*param->item)->val() < 0)
   {
+    delete pc;
     my_error(ER_WRONG_PARAMETERS_TO_PROCEDURE, MYF(0), proc_name);
     DBUG_RETURN(0);
   }

sql/sql_lex.h

@@ -225,7 +225,7 @@ public:
     return (void*) sql_calloc((uint) size);
   }
   static void operator delete(void *ptr,size_t size) {}
-  st_select_lex_node() {}
+  st_select_lex_node(): linkage(UNSPECIFIED_TYPE) {}
   virtual ~st_select_lex_node() {}
   inline st_select_lex_node* get_master() { return master; }
   virtual void init_query();

sql/time.cc

@@ -639,9 +639,11 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
   for (value=0; str != end && my_isdigit(&my_charset_latin1,*str) ; str++)
     value=value*10L + (long) (*str - '0');
 
-  if (*str == ' ')
+  /* Move to last space */
+  if (str != end && *str == ' ')
   {
-    while (++str != end && str[0] == ' ') ;
+    while (++str != end && str[0] == ' ')
+    {}
     str--;
   }