Fixed problem with WHERE key=const ORDER BY key DESC (f0e835ac) · Commits · Software / OSDI20 Artifacts / mariadb

Docs/manual.texi

+7 −1

Original line number	Diff line number	Diff line
		@@ -9869,6 +9869,9 @@ If you would like MySQL to start automatically, you can copy
		@file{support-files/mysql.server} to @file{/etc/init.d} and create a
		symbolic link to it named @file{/etc/rc3.d/S99mysql.server}.

		As Solaris doesn't support core files for @code{setuid()} applications,
		you can't get a core file from @code{mysqld} if you are using the
		@code{--user} option.

		@menu
		* Solaris 2.7:: Solaris 2.7/2.8 Notes
		@@ -14114,7 +14117,8 @@ though.
		@item --core-file
		Write a core file if @code{mysqld} dies. For some systems you must also
		specify @code{--core-file-size} to @code{safe_mysqld}. @xref{safe_mysqld, ,
		@code{safe_mysqld}}.
		@code{safe_mysqld}}. Note that on some system like Solaris, you will
		not get a core file if you are also using the @code{--user} option.

		@item -h, --datadir=path
		Path to the database root.
		@@ -48732,6 +48736,8 @@ Fixed wrong error value when doing a @code{SELECT} with an empty HEAP table.
		@item
		Use @code{ORDER BY column DESC} now sorts @code{NULL} values first.
		@item
		Fixed bug in @code{WHERE key_name='constant' ORDER BY key_name DESC}.
		@item
		Fixed bug in @code{SELECT DISTINCT ... ORDER BY DESC} optimization.
		@item
		Fixed bug in @code{... HAVING 'GROUP_FUNCTION'(xxx) IS [NOT] NULL}.

myisam/ft_boolean_search.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -127,7 +127,7 @@ void _ftb_parse_query(FTB ftb, byte start, byte end,
		param.prev=' ';
		while ((res=ft_get_word(start,end,&w,&param)))
		{
		byte r=param.plusminus;
		int r=param.plusminus;
		float weight= (float) (param.pmsign ? nwghts : wghts)[(r>5)?5:((r<-5)?-5:r)];
		switch (res) {
		case 1: /* word found */

sql/ha_myisam.cc

+6 −6

Original line number	Diff line number	Diff line
		@@ -725,10 +725,10 @@ bool ha_myisam::check_and_repair(THD *thd)
		{
		sql_print_error("Warning: Recovering table: '%s'",table->path);
		check_opt.flags=
		(myisam_recover_options & HA_RECOVER_BACKUP ? T_BACKUP_DATA : 0)
		\| (marked_crashed ? 0 : T_QUICK)
		\| (myisam_recover_options & HA_RECOVER_FORCE ? 0 : T_SAFE_REPAIR)
		\| T_AUTO_REPAIR;
		((myisam_recover_options & HA_RECOVER_BACKUP ? T_BACKUP_DATA : 0) \|
		(marked_crashed ? 0 : T_QUICK) \|
		(myisam_recover_options & HA_RECOVER_FORCE ? 0 : T_SAFE_REPAIR) \|
		T_AUTO_REPAIR);
		if (repair(thd, &check_opt))
		error=1;
		}

sql/sql_select.cc

+6 −5

Original line number	Diff line number	Diff line
		@@ -4685,7 +4685,7 @@ join_read_prev_same(READ_RECORD *info)
		tab->ref.key_length))
		{
		table->status=STATUS_NOT_FOUND;
		error= 1;
		error= -1;
		}
		return error;
		}
		@@ -7056,8 +7056,9 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
		item_list.push_back(new Item_null());
		if (tab->ref.key_parts)
		{
		item_list.push_back(new Item_string(table->key_info[tab->ref.key].name,strlen(table->key_info[tab->ref.key].name)));
		item_list.push_back(new Item_int((int) tab->ref.key_length));
		item_list.push_back(new Item_string(table->key_info[tab->ref.key].name,
		strlen(table->key_info[tab->ref.key].name)));
		item_list.push_back(new Item_int((int32) tab->ref.key_length));
		for (store_key *ref=tab->ref.key_copy ; ref ; ref++)
		{
		if (tmp2.length())
		@@ -7069,13 +7070,13 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
		else if (tab->type == JT_NEXT)
		{
		item_list.push_back(new Item_string(table->key_info[tab->index].name,strlen(table->key_info[tab->index].name)));
		item_list.push_back(new Item_int((int) table->key_info[tab->index].key_length));
		item_list.push_back(new Item_int((int32) table->key_info[tab->index].key_length));
		item_list.push_back(new Item_null());
		}
		else if (tab->select && tab->select->quick)
		{
		item_list.push_back(new Item_string(table->key_info[tab->select->quick->index].name,strlen(table->key_info[tab->select->quick->index].name)));
		item_list.push_back(new Item_int((int) tab->select->quick->max_used_key_length));
		item_list.push_back(new Item_int((int32) tab->select->quick->max_used_key_length));
		item_list.push_back(new Item_null());
		}
		else

sql/sql_union.cc

+2 −1

Original line number	Diff line number	Diff line
		@@ -126,8 +126,9 @@ int mysql_union(THD thd, LEX lex,select_result *result)
		}
		union_result->save_time_stamp=!describe;

		for (sl=lex->select=&lex->select_lex;sl;sl=lex->select=sl->next)
		for (sl= &lex->select_lex; sl; sl=sl->next)
		{
		lex->select=sl;
		thd->offset_limit=sl->offset_limit;
		thd->select_limit=sl->select_limit+sl->offset_limit;
		if (thd->select_limit < sl->select_limit)