Change name -> alias in TABLE_LIST. (755d4952) · Commits · Software / OSDI20 Artifacts / mariadb

Docs/manual.texi

+6 −0

Original line number	Diff line number	Diff line
		@@ -46931,10 +46931,16 @@ not yet 100% confident in this code.
		@item
		Fixed core dump bug when using the @code{BINARY} cast on a @code{NULL} value.
		@item
		Fixed race condition when someone did a @code{GRANT} at the same time a new
		user logged in or did a @code{USE DATABASE}.
		@item
		Fixed bug in @code{ALTER TABLE} and @code{RENAME TABLE} when running with
		@code{-O lower_case_table_names=1} (typically on windows) when giving the
		table name in uppercase.
		@item
		Fixed that @code{-O lower_case_table_names=1} also converts database
		names to lower case.
		@item
		Fixed unlikely core dump with @code{SELECT ... ORDER BY ... LIMIT}.
		@item
		Changed @code{AND/OR} to report that they can return NULL. This fixes a

sql/lock.cc

+2 −2

Original line number	Diff line number	Diff line
		@@ -419,7 +419,7 @@ int lock_table_name(THD thd, TABLE_LIST table_list)
		uint key_length;
		DBUG_ENTER("lock_table_name");

		key_length=(uint) (strmov(strmov(key,table_list->db)+1,table_list->name)
		key_length=(uint) (strmov(strmov(key,table_list->db)+1,table_list->real_name)
		-key)+ 1;

		/* Only insert the table if we haven't insert it already */
		@@ -447,7 +447,7 @@ int lock_table_name(THD thd, TABLE_LIST table_list)
		my_free((gptr) table,MYF(0));
		DBUG_RETURN(-1);
		}
		if (remove_table_from_cache(thd, table_list->db, table_list->name))
		if (remove_table_from_cache(thd, table_list->db, table_list->real_name))
		DBUG_RETURN(1); // Table is in use
		DBUG_RETURN(0);
		}

sql/slave.cc

+2 −2

Original line number	Diff line number	Diff line
		@@ -399,7 +399,7 @@ static int create_table_from_dump(THD* thd, NET* net, const char* db,

		bzero((char*) &tables,sizeof(tables));
		tables.db = (char*)db;
		tables.name = tables.real_name = (char*)table_name;
		tables.alias= tables.real_name= (char*)table_name;
		tables.lock_type = TL_WRITE;
		thd->proc_info = "Opening master dump table";
		if (!open_ltable(thd, &tables, TL_WRITE))
		@@ -1073,7 +1073,7 @@ static int exec_event(THD* thd, NET* net, MASTER_INFO* mi, int event_len)
		TABLE_LIST tables;
		bzero((char*) &tables,sizeof(tables));
		tables.db = thd->db;
		tables.name = tables.real_name = (char*)lev->table_name;
		tables.alias= tables.real_name= (char*)lev->table_name;
		tables.lock_type = TL_WRITE;
		// the table will be opened in mysql_load
		if(table_rules_on && !tables_ok(thd, &tables))

sql/sql_acl.cc

+37 −27

Original line number	Diff line number	Diff line
		@@ -130,9 +130,9 @@ int acl_init(bool dont_read_acl_tables)
		thd->open_tables=0;
		thd->db=my_strdup("mysql",MYF(0));
		bzero((char*) &tables,sizeof(tables));
		tables[0].name=tables[0].real_name=(char*) "host";
		tables[1].name=tables[1].real_name=(char*) "user";
		tables[2].name=tables[2].real_name=(char*) "db";
		tables[0].alias=tables[0].real_name=(char*) "host";
		tables[1].alias=tables[1].real_name=(char*) "user";
		tables[2].alias=tables[2].real_name=(char*) "db";
		tables[0].next=tables+1;
		tables[1].next=tables+2;
		tables[0].lock_type=tables[1].lock_type=tables[2].lock_type=TL_READ;
		@@ -922,7 +922,7 @@ static bool update_user_table(THD thd, const char host, const char *user,
		DBUG_PRINT("enter",("user: %s host: %s",user,host));

		bzero((char*) &tables,sizeof(tables));
		tables.name=tables.real_name=(char*) "user";
		tables.alias=tables.real_name=(char*) "user";
		tables.db=(char*) "mysql";
		if (!(table=open_ltable(thd,&tables,TL_WRITE)))
		DBUG_RETURN(1); /* purecov: deadcode */
		@@ -1653,7 +1653,7 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		check->column.length(),0,0))
		{
		my_printf_error(ER_BAD_FIELD_ERROR,ER(ER_BAD_FIELD_ERROR),MYF(0),
		check->column.c_ptr(),table_list->name);
		check->column.c_ptr(),table_list->alias);
		DBUG_RETURN(-1);
		}
		column_priv \|= check->rights \| (rights & COL_ACLS);
		@@ -1664,11 +1664,11 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		{
		char buf[FN_REFLEN];
		sprintf(buf,"%s/%s/%s.frm",mysql_data_home,table_list->db,
		table_list->name);
		table_list->real_name);
		fn_format(buf,buf,"","",4+16+32);
		if (access(buf,F_OK))
		{
		my_error(ER_NO_SUCH_TABLE,MYF(0),table_list->db,table_list->name);
		my_error(ER_NO_SUCH_TABLE,MYF(0),table_list->db,table_list->real_name);
		DBUG_RETURN(-1);
		}
		}
		@@ -1676,9 +1676,9 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		/* open the mysql.tables_priv and mysql.columns_priv tables */

		bzero((char*) &tables,sizeof(tables));
		tables[0].name=tables[0].real_name= (char*) "user";
		tables[1].name=tables[1].real_name= (char*) "tables_priv";
		tables[2].name=tables[2].real_name= (char*) "columns_priv";
		tables[0].alias=tables[0].real_name= (char*) "user";
		tables[1].alias=tables[1].real_name= (char*) "tables_priv";
		tables[2].alias=tables[2].real_name= (char*) "columns_priv";
		tables[0].next=tables+1;
		/* Don't open column table if we don't need it ! */
		tables[1].next=((column_priv \|\|
		@@ -1702,6 +1702,7 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,

		while ((Str = str_list++))
		{
		int error;
		GRANT_TABLE *grant_table;
		if (!Str->host.str)
		{
		@@ -1716,11 +1717,14 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		continue;
		}
		/* Create user if needed */
		if (replace_user_table(tables[0].table,
		pthread_mutex_lock(&acl_cache->lock);
		error=replace_user_table(tables[0].table,
		*Str,
		0,
		revoke_grant ? 'N' : 'Y',
		create_new_users))
		create_new_users);
		pthread_mutex_unlock(&acl_cache->lock);
		if (error)
		{
		result= -1; // Remember error
		continue; // Add next user
		@@ -1729,20 +1733,20 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		/* Find/create cached table grant */
		grant_table= table_hash_search(Str->host.str,NullS,table_list->db,
		Str->user.str,
		table_list->name,1);
		table_list->real_name,1);
		if (!grant_table)
		{
		if (revoke_grant)
		{
		my_printf_error(ER_NONEXISTING_TABLE_GRANT,
		ER(ER_NONEXISTING_TABLE_GRANT),MYF(0),
		Str->user.str, Str->host.str,table_list->name);
		Str->user.str, Str->host.str, table_list->real_name);
		result= -1;
		continue;
		}
		grant_table = new GRANT_TABLE (Str->host.str,table_list->db,
		Str->user.str,
		table_list->name,
		table_list->real_name,
		rights,
		column_priv);
		if (!grant_table) // end of memory
		@@ -1789,7 +1793,7 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,

		if (replace_table_table(thd,grant_table,tables[1].table,*Str,
		table_list->db,
		table_list->name,
		table_list->real_name,
		rights, column_priv, revoke_grant))
		{ // Crashend table ??
		result= -1; /* purecov: deadcode */
		@@ -1799,7 +1803,7 @@ int mysql_table_grant (THD thd, TABLE_LIST table_list,
		if ((replace_column_table(grant_table,tables[2].table, *Str,
		columns,
		table_list->db,
		table_list->name,
		table_list->real_name,
		rights, revoke_grant)))
		{
		result= -1;
		@@ -1836,8 +1840,8 @@ int mysql_grant (THD thd, const char db, List <LEX_USER> &list, uint rights,

		/* open the mysql.user and mysql.db tables */

		tables[0].name=tables[0].real_name=(char*) "user";
		tables[1].name=tables[1].real_name=(char*) "db";
		tables[0].alias=tables[0].real_name=(char*) "user";
		tables[1].alias=tables[1].real_name=(char*) "db";
		tables[0].next=tables+1;
		tables[1].next=0;
		tables[0].lock_type=tables[1].lock_type=TL_WRITE;
		@@ -1930,8 +1934,8 @@ int grant_init (void)
		thd->open_tables=0;
		thd->db=my_strdup("mysql",MYF(0));
		bzero((char*) &tables,sizeof(tables));
		tables[0].name=tables[0].real_name= (char*) "tables_priv";
		tables[1].name=tables[1].real_name= (char*) "columns_priv";
		tables[0].alias=tables[0].real_name= (char*) "tables_priv";
		tables[1].alias=tables[1].real_name= (char*) "columns_priv";
		tables[0].next=tables+1;
		tables[0].lock_type=tables[1].lock_type=TL_READ;
		tables[0].db=tables[1].db=thd->db;
		@@ -2270,6 +2274,7 @@ bool check_grant_db(THD thd,const char db)

		uint get_table_grant(THD thd, TABLE_LIST table)
		{
		uint privilege;
		char *user = thd->priv_user;
		const char *db = table->db ? table->db : thd->db;
		GRANT_TABLE *grant_table;
		@@ -2281,8 +2286,9 @@ uint get_table_grant(THD thd, TABLE_LIST table)
		table->grant.version=grant_version;
		if (grant_table)
		table->grant.privilege\|= grant_table->privs;
		privilege= table->grant.privilege;
		pthread_mutex_unlock(&LOCK_grant);
		return table->grant.privilege;
		return privilege;
		}


		@@ -2335,7 +2341,7 @@ int mysql_show_grants(THD thd,LEX_USER lex_user)
		int error = 0;
		ACL_USER acl_user; ACL_DB acl_db;
		char buff[1024];
		DBUG_ENTER("mysql_grant");
		DBUG_ENTER("mysql_show_grants");

		LINT_INIT(acl_user);
		if (!initialized)
		@@ -2384,6 +2390,7 @@ int mysql_show_grants(THD thd,LEX_USER lex_user)
		if (send_fields(thd,field_list,1))
		DBUG_RETURN(-1);

		pthread_mutex_lock(&LOCK_grant);
		VOID(pthread_mutex_lock(&acl_cache->lock));

		/* Add first global access grants */
		@@ -2578,13 +2585,16 @@ int mysql_show_grants(THD thd,LEX_USER lex_user)
		thd->packet.length()))
		{
		error=-1;
		goto end;
		break;
		}
		}
		}
		}

		end:
		VOID(pthread_mutex_unlock(&acl_cache->lock));
		pthread_mutex_unlock(&LOCK_grant);

		send_eof(&thd->net);
		DBUG_RETURN(error);
		}

sql/sql_base.cc

+8 −8

Original line number	Diff line number	Diff line
		@@ -354,7 +354,7 @@ bool close_cached_tables(THD *thd, bool if_wait_for_refresh,
		bool found=0;
		for (TABLE_LIST *table=tables ; table ; table=table->next)
		{
		if (remove_table_from_cache(thd, table->db, table->name, 1))
		if (remove_table_from_cache(thd, table->db, table->real_name, 1))
		found=1;
		}
		if (!found)
		@@ -715,7 +715,7 @@ TABLE reopen_name_locked_table(THD thd, TABLE_LIST* table_list)
		DBUG_RETURN(0);

		char* db = thd->db ? thd->db : table_list->db;
		char* table_name = table_list->name;
		char* table_name = table_list->real_name;
		char key[MAX_DBKEY_LENGTH];
		uint key_length;
		key_length=(uint) (strmov(strmov(key,db)+1,table_name)-key)+1;
		@@ -1285,7 +1285,7 @@ static int open_unireg_entry(THD thd, TABLE entry, const char *db,

		TABLE_LIST table_list;
		table_list.db=(char*) db;
		table_list.name=(char*) name;
		table_list.real_name=(char*) name;
		table_list.next=0;
		if ((error=lock_table_name(thd,&table_list)))
		{
		@@ -1356,7 +1356,7 @@ int open_tables(THD thd,TABLE_LIST start)
		!(tables->table=open_table(thd,
		tables->db ? tables->db : thd->db,
		tables->real_name,
		tables->name, &refresh)))
		tables->alias, &refresh)))
		{
		if (refresh) // Refresh in progress
		{
		@@ -1412,7 +1412,7 @@ TABLE open_ltable(THD thd, TABLE_LIST *table_list, thr_lock_type lock_type)

		thd->proc_info="Opening table";
		while (!(table=open_table(thd,table_list->db ? table_list->db : thd->db,
		table_list->real_name,table_list->name,
		table_list->real_name, table_list->alias,
		&refresh)) && refresh) ;
		if (table)
		{
		@@ -1440,7 +1440,7 @@ TABLE open_ltable(THD thd, TABLE_LIST *table_list, thr_lock_type lock_type)
		{
		my_printf_error(ER_TABLE_NOT_LOCKED_FOR_WRITE,
		ER(ER_TABLE_NOT_LOCKED_FOR_WRITE),
		MYF(0),table_list->name);
		MYF(0),table_list->alias);
		table=0;
		}
		else if ((error=table->file->start_stmt(thd)))
		@@ -1642,7 +1642,7 @@ find_field_in_tables(THD thd,Item_field item,TABLE_LIST *tables)
		bool found_table=0;
		for (; tables ; tables=tables->next)
		{
		if (!strcmp(tables->name,table_name) &&
		if (!strcmp(tables->alias,table_name) &&
		(!db \|\|
		(tables->db && !strcmp(db,tables->db)) \|\|
		(!tables->db && !strcmp(db,thd->db))))
		@@ -1882,7 +1882,7 @@ insert_fields(THD thd,TABLE_LIST tables, const char *db_name,
		if (grant_option && !thd->master_access &&
		check_grant_all_columns(thd,SELECT_ACL,table) )
		DBUG_RETURN(-1);
		if (!table_name \|\| (!strcmp(table_name,tables->name) &&
		if (!table_name \|\| (!strcmp(table_name,tables->alias) &&
		(!db_name \|\| !tables->db \|\|
		!strcmp(tables->db,db_name))))
		{