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VIEW support for CHECK TABLE command (WL#1984)

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bell@sanja.is.com.ua 2004-10-28 19:37:25 +03:00
parent 5bf7a8c30b
commit 13f249a025
6 changed files with 110 additions and 13 deletions
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15
mysql-test/r/view.result
View File

@ -1626,3 +1626,18 @@ Field 3,'Field 4|
|Field 6| | 'Field 7'|
drop view v1;
drop table t1;
create table t1 (a int);
create view v1 as select * from t1;
check table t1,v1;
Table Op Msg_type Msg_text
test.t1 check status OK
test.v1 check status OK
check table v1,t1;
Table Op Msg_type Msg_text
test.v1 check status OK
test.t1 check status OK
drop table t1;
check table v1;
Table Op Msg_type Msg_text
test.v1 check error View 'test.v1' references invalid table(s) or column(s)
drop view v1;

10
mysql-test/t/view.test
View File

@ -1554,3 +1554,13 @@ select concat('|',a,'|'), concat('|',b,'|') from v1;
drop view v1;
drop table t1;
#
# CHECK TABLE with VIEW
#
create table t1 (a int);
create view v1 as select * from t1;
check table t1,v1;
check table v1,t1;
drop table t1;
check table v1;
drop view v1;

1
sql/handler.h
View File

@ -44,6 +44,7 @@
#define HA_ADMIN_INVALID -5
#define HA_ADMIN_REJECT -6
#define HA_ADMIN_TRY_ALTER -7
#define HA_ADMIN_WRONG_CHECKSUM -8
/* Bits in table_flags() to show what database can do */
#define HA_READ_RND_SAME (1 << 0) /* can switch index during the scan

66
sql/sql_table.cc
View File

@ -1731,12 +1731,15 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
int (*prepare_func)(THD *, TABLE_LIST *,
HA_CHECK_OPT *),
int (handler::*operator_func)
(THD *, HA_CHECK_OPT *))
(THD *, HA_CHECK_OPT *),
int (view_operator_func)
(THD *, TABLE_LIST*))
{
TABLE_LIST *table;
TABLE_LIST *table, *next_global_table;
List<Item> field_list;
Item *item;
Protocol *protocol= thd->protocol;
int result_code;
DBUG_ENTER("mysql_admin_table");
field_list.push_back(item = new Item_empty_string("Table", NAME_LEN*2));
@ -1760,7 +1763,18 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
strxmov(table_name,db ? db : "",".",table->real_name,NullS);
thd->open_options|= extra_open_options;
table->table = open_ltable(thd, table, lock_type);
table->lock_type= lock_type;
/* open only one table from local list of command */
next_global_table= table->next_global;
table->next_global= 0;
open_and_lock_tables(thd, table);
table->next_global= next_global_table;
/* if view are unsupported */
if (table->view && !view_operator_func)
{
result_code= HA_ADMIN_NOT_IMPLEMENTED;
goto send_result;
}
thd->open_options&= ~extra_open_options;
if (prepare_func)
@ -1772,8 +1786,13 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
}
}
/*
for this command used only temporary table method (without
filling tables), so if opening succeed, table will be opened
*/
if (!table->table)
{
char buf[ERRMSGSIZE+25];
const char *err_msg;
protocol->prepare_for_resend();
protocol->store(table_name, system_charset_info);
@ -1781,12 +1800,26 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
protocol->store("error",5, system_charset_info);
if (!(err_msg=thd->net.last_error))
err_msg=ER(ER_CHECK_NO_SUCH_TABLE);
/* if it was a view will check md5 sum */
if (table->view &&
view_checksum(thd, table) == HA_ADMIN_WRONG_CHECKSUM)
{
strxmov(buf, "View checksum failed and ", err_msg, NullS);
err_msg= (const char *)buf;
}
protocol->store(err_msg, system_charset_info);
thd->clear_error();
if (protocol->write())
goto err;
continue;
}
if (table->view)
{
result_code= (*view_operator_func)(thd, table);
goto send_result;
}
table->table->pos_in_table_list= table;
if ((table->table->db_stat & HA_READ_ONLY) && open_for_modify)
{
@ -1825,7 +1858,10 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
open_for_modify=0;
}
int result_code = (table->table->file->*operator_func)(thd, check_opt);
result_code = (table->table->file->*operator_func)(thd, check_opt);
send_result:
thd->clear_error(); // these errors shouldn't get client
protocol->prepare_for_resend();
protocol->store(table_name, system_charset_info);
@ -1901,6 +1937,12 @@ send_result_message:
table->next_global= save_next_global;
goto send_result_message;
}
case HA_ADMIN_WRONG_CHECKSUM:
{
protocol->store("note", 4, system_charset_info);
protocol->store("Checksum error", 14, system_charset_info);
break;
}
default: // Probably HA_ADMIN_INTERNAL_ERROR
protocol->store("error", 5, system_charset_info);
@ -1941,7 +1983,7 @@ bool mysql_backup_table(THD* thd, TABLE_LIST* table_list)
DBUG_ENTER("mysql_backup_table");
DBUG_RETURN(mysql_admin_table(thd, table_list, 0,
"backup", TL_READ, 0, 0, 0,
&handler::backup));
&handler::backup, 0));
}
@ -1951,7 +1993,7 @@ bool mysql_restore_table(THD* thd, TABLE_LIST* table_list)
DBUG_RETURN(mysql_admin_table(thd, table_list, 0,
"restore", TL_WRITE, 1, 0,
&prepare_for_restore,
&handler::restore));
&handler::restore, 0));
}
@ -1961,7 +2003,7 @@ bool mysql_repair_table(THD* thd, TABLE_LIST* tables, HA_CHECK_OPT* check_opt)
DBUG_RETURN(mysql_admin_table(thd, tables, check_opt,
"repair", TL_WRITE, 1, HA_OPEN_FOR_REPAIR,
&prepare_for_repair,
&handler::repair));
&handler::repair, 0));
}
@ -1970,7 +2012,7 @@ bool mysql_optimize_table(THD* thd, TABLE_LIST* tables, HA_CHECK_OPT* check_opt)
DBUG_ENTER("mysql_optimize_table");
DBUG_RETURN(mysql_admin_table(thd, tables, check_opt,
"optimize", TL_WRITE, 1,0,0,
&handler::optimize));
&handler::optimize, 0));
}
@ -2006,7 +2048,7 @@ bool mysql_assign_to_keycache(THD* thd, TABLE_LIST* tables,
check_opt.key_cache= key_cache;
DBUG_RETURN(mysql_admin_table(thd, tables, &check_opt,
"assign_to_keycache", TL_READ_NO_INSERT, 0,
0, 0, &handler::assign_to_keycache));
0, 0, &handler::assign_to_keycache, 0));
}
@ -2067,7 +2109,7 @@ bool mysql_preload_keys(THD* thd, TABLE_LIST* tables)
DBUG_ENTER("mysql_preload_keys");
DBUG_RETURN(mysql_admin_table(thd, tables, 0,
"preload_keys", TL_READ, 0, 0, 0,
&handler::preload_keys));
&handler::preload_keys, 0));
}
@ -2232,7 +2274,7 @@ bool mysql_analyze_table(THD* thd, TABLE_LIST* tables, HA_CHECK_OPT* check_opt)
DBUG_ENTER("mysql_analyze_table");
DBUG_RETURN(mysql_admin_table(thd, tables, check_opt,
"analyze", lock_type, 1,0,0,
&handler::analyze));
&handler::analyze, 0));
}
@ -2248,7 +2290,7 @@ bool mysql_check_table(THD* thd, TABLE_LIST* tables,HA_CHECK_OPT* check_opt)
DBUG_RETURN(mysql_admin_table(thd, tables, check_opt,
"check", lock_type,
0, HA_OPEN_FOR_REPAIR, 0,
&handler::check));
&handler::check, &view_checksum));
}
/* table_list should contain just one table */

29
sql/sql_view.cc
View File

@ -21,6 +21,8 @@
#include "parse_file.h"
#include "sp.h"
#define MD5_BUFF_LENGTH 33
static int mysql_register_view(THD *thd, TABLE_LIST *view,
enum_view_create_mode mode);
@ -381,7 +383,7 @@ static int mysql_register_view(THD *thd, TABLE_LIST *view,
{
char buff[4096];
String str(buff,(uint32) sizeof(buff), system_charset_info);
char md5[33];
char md5[MD5_BUFF_LENGTH];
bool can_be_merged;
char dir_buff[FN_REFLEN], file_buff[FN_REFLEN];
LEX_STRING dir, file;
@ -1036,3 +1038,28 @@ void insert_view_fields(List<Item> *list, TABLE_LIST *view)
}
DBUG_VOID_RETURN;
}
/*
checking view md5 check suum
SINOPSYS
view_checksum()
thd threar handler
view view for check
RETUIRN
HA_ADMIN_OK OK
HA_ADMIN_NOT_IMPLEMENTED it is not VIEW
HA_ADMIN_WRONG_CHECKSUM check sum is wrong
*/
int view_checksum(THD *thd, TABLE_LIST *view)
{
char md5[MD5_BUFF_LENGTH];
if (!view->view || view->md5.length != 32)
return HA_ADMIN_NOT_IMPLEMENTED;
view->calc_md5(md5);
return (strncmp(md5, view->md5.str, 32) ?
HA_ADMIN_WRONG_CHECKSUM :
HA_ADMIN_OK);
}

2
sql/sql_view.h
View File

@ -29,6 +29,8 @@ void insert_view_fields(List<Item> *list, TABLE_LIST *view);
frm_type_enum mysql_frm_type(char *path);
int view_checksum(THD *thd, TABLE_LIST *view);
extern TYPELIB updatable_views_with_limit_typelib;
#define VIEW_ANY_ACL (SELECT_ACL | UPDATE_ACL | INSERT_ACL | DELETE_ACL)