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Fix for bug#13818 SHOW CREATE VIEW / TABLE and information_schema.views fail

Browse source 
for invalid view
 Permit SHOW CREATE VIEW, SHOW CREATE TABLE, and retrieval of metadata from
 information_schema for invalid views
This commit is contained in:
gluh@eagle.intranet.mysql.r18.ru 2005-11-11 13:39:46 +04:00
parent b13dd4ff72
commit 7803d80aa4
3 changed files with 62 additions and 35 deletions
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14
mysql-test/r/information_schema.result
View file

@ -647,12 +647,16 @@ drop function sub1;
select table_name from information_schema.views
where table_schema='test';
table_name
v2
v3
Warnings:
Warning 1356 View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
Warning 1356 View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select table_name from information_schema.views
where table_schema='test';
table_name
v2
v3
Warnings:
Warning 1356 View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
Warning 1356 View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
@ -669,6 +673,16 @@ f1_key
select constraint_name from information_schema.table_constraints
where table_schema='test';
constraint_name
show create view v2;
View Create View
v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS select `test`.`t1`.`f1` AS `c` from `t1`
Warnings:
Warning 1356 View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
show create table v3;
View Create View
v3 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS select sql_no_cache `test`.`sub1`(1) AS `c`
Warnings:
Warning 1356 View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
drop view v2;
drop view v3;
drop table t4;

2
mysql-test/t/information_schema.test
View file

@ -379,6 +379,8 @@ where table_schema='test';
select index_name from information_schema.statistics where table_schema='test';
select constraint_name from information_schema.table_constraints
where table_schema='test';
show create view v2;
show create table v3;
drop view v2;
drop view v3;
drop table t4;

81
sql/sql_show.cc
View file

@ -362,7 +362,21 @@ mysqld_show_create(THD *thd, TABLE_LIST *table_list)
/* Only one table for now, but VIEW can involve several tables */
if (open_normal_and_derived_tables(thd, table_list, 0))
DBUG_RETURN(TRUE);
{
if (!table_list->view || thd->net.last_errno != ER_VIEW_INVALID)
DBUG_RETURN(TRUE);
/*
Clear all messages with 'error' level status and
issue a warning with 'warning' level status in
case of invalid view and last error is ER_VIEW_INVALID
*/
mysql_reset_errors(thd, true);
push_warning_printf(thd,MYSQL_ERROR::WARN_LEVEL_WARN,
ER_VIEW_INVALID,
ER(ER_VIEW_INVALID),
table_list->view_db.str,
table_list->view_name.str);
}
/* TODO: add environment variables show when it become possible */
if (thd->lex->only_view && !table_list->view)
@ -2992,47 +3006,44 @@ static int get_schema_views_record(THD *thd, struct st_table_list *tables,
DBUG_ENTER("get_schema_views_record");
char definer[HOSTNAME_LENGTH + USERNAME_LENGTH + 2];
uint definer_len;
if (!res)
if (tables->view)
{
if (tables->view)
restore_record(table, s->default_values);
table->field[1]->store(tables->view_db.str, tables->view_db.length, cs);
table->field[2]->store(tables->view_name.str, tables->view_name.length,
cs);
table->field[3]->store(tables->query.str, tables->query.length, cs);
if (tables->with_check != VIEW_CHECK_NONE)
{
restore_record(table, s->default_values);
table->field[1]->store(tables->view_db.str, tables->view_db.length, cs);
table->field[2]->store(tables->view_name.str, tables->view_name.length,
cs);
table->field[3]->store(tables->query.str, tables->query.length, cs);
if (tables->with_check != VIEW_CHECK_NONE)
{
if (tables->with_check == VIEW_CHECK_LOCAL)
table->field[4]->store(STRING_WITH_LEN("LOCAL"), cs);
else
table->field[4]->store(STRING_WITH_LEN("CASCADED"), cs);
}
if (tables->with_check == VIEW_CHECK_LOCAL)
table->field[4]->store(STRING_WITH_LEN("LOCAL"), cs);
else
table->field[4]->store(STRING_WITH_LEN("NONE"), cs);
if (tables->updatable_view)
table->field[5]->store(STRING_WITH_LEN("YES"), cs);
else
table->field[5]->store(STRING_WITH_LEN("NO"), cs);
definer_len= (strxmov(definer, tables->definer.user.str, "@",
tables->definer.host.str, NullS) - definer);
table->field[6]->store(definer, definer_len, cs);
if (tables->view_suid)
table->field[7]->store(STRING_WITH_LEN("DEFINER"), cs);
else
table->field[7]->store(STRING_WITH_LEN("INVOKER"), cs);
DBUG_RETURN(schema_table_store_record(thd, table));
table->field[4]->store(STRING_WITH_LEN("CASCADED"), cs);
}
}
else
{
if (tables->view)
else
table->field[4]->store(STRING_WITH_LEN("NONE"), cs);
if (tables->updatable_view)
table->field[5]->store(STRING_WITH_LEN("YES"), cs);
else
table->field[5]->store(STRING_WITH_LEN("NO"), cs);
definer_len= (strxmov(definer, tables->definer.user.str, "@",
tables->definer.host.str, NullS) - definer);
table->field[6]->store(definer, definer_len, cs);
if (tables->view_suid)
table->field[7]->store(STRING_WITH_LEN("DEFINER"), cs);
else
table->field[7]->store(STRING_WITH_LEN("INVOKER"), cs);
if (schema_table_store_record(thd, table))
DBUG_RETURN(1);
if (res)
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
thd->net.last_errno, thd->net.last_error);
thd->clear_error();
}
if (res)
thd->clear_error();
DBUG_RETURN(0);
}