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fixed views with PS protocol

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mysql-test/r/view.result:
  query cache part moved to separate test
mysql-test/t/view.test:
  query cache part moved to separate test
sql/item_func.cc:
  fixed for safety
sql/sql_base.cc:
  do not use real table call with view
  fixed wrapping * substitured items
  fixed fix_fields call parameter (refference)
sql/sql_yacc.yy:
  added initialisation of SELECT in commands which can use subqueries
sql/table.cc:
  fised fix_fields call parameter
sql/table.h:
  new view specific method
This commit is contained in:
unknown 2005-01-05 16:48:23 +02:00
parent 4fd1524c0a
commit 47dc78e6a3
9 changed files with 182 additions and 171 deletions
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101
mysql-test/r/view.result
View File

@ -363,107 +363,6 @@ v4 CREATE ALGORITHM=TEMPTABLE VIEW `mysqltest`.`v4` AS select (`mysqltest`.`t2`.
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;
set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
select * from v2;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
select * from v2;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
drop view v1,v2;
set query_cache_type=demand;
flush status;
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from t1;
a b
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 1
select * from t1;
a b
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 1
drop view v1;
set query_cache_type=default;
drop table t1;
set GLOBAL query_cache_size=default;
create table t1 (a int);
insert into t1 values (1), (2), (3), (1), (2), (3);
create view v1 as select distinct a from t1;

101
mysql-test/r/view_query_cache.result Normal file
View File

@ -0,0 +1,101 @@
set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
select * from v2;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
select * from v2;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
drop view v1,v2;
set query_cache_type=demand;
flush status;
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from t1;
a b
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from v1;
c d
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 1
select * from t1;
a b
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
show status like "Qcache_inserts";
Variable_name Value
Qcache_inserts 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 1
drop view v1;
set query_cache_type=default;
drop table t1;
set GLOBAL query_cache_size=default;

57
mysql-test/t/view.test
View File

@ -328,63 +328,6 @@ revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;
#
# QUERY CACHE options for VIEWs
#
set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);
# queries with following views should not be in query cache
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1,v2;
# SQL_CACHE option
set query_cache_type=demand;
flush status;
# query with view will be cached, but direct acess to table will not
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1;
set query_cache_type=default;
drop table t1;
set GLOBAL query_cache_size=default;
#
# DISTINCT option for VIEW
#

58
mysql-test/t/view_query_cache.test Normal file
View File

@ -0,0 +1,58 @@
-- source include/have_query_cache.inc
#
# QUERY CACHE options for VIEWs
#
set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);
# queries with following views should not be in query cache
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1,v2;
# SQL_CACHE option
set query_cache_type=demand;
flush status;
# query with view will be cached, but direct acess to table will not
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1;
set query_cache_type=default;
drop table t1;
set GLOBAL query_cache_size=default;

2
sql/item_func.cc
View File

@ -194,8 +194,8 @@ bool Item_func::agg_arg_charsets(DTCollation &coll,
}
if ((*arg)->type() == FIELD_ITEM)
((Item_field *)(*arg))->no_const_subst= 1;
conv->fix_fields(thd, 0, &conv);
*arg= conv;
conv->fix_fields(thd, 0, arg);
}
if (arena)
thd->restore_backup_item_arena(arena, &backup);

19
sql/sql_base.cc
View File

@ -2262,7 +2262,7 @@ find_field_in_tables(THD *thd, Item_ident *item, TABLE_LIST *tables,
field makes some prepared query ambiguous and so erroneous, but we
accept this trade off.
*/
if (item->cached_table->table)
if (item->cached_table->table && !item->cached_table->view)
{
found= find_field_in_real_table(thd, item->cached_table->table,
name, length,
@ -3047,15 +3047,19 @@ insert_fields(THD *thd, TABLE_LIST *tables, const char *db_name,
&not_used_field_index, TRUE))
{
Item *item= iterator->item(thd);
if (view && !thd->lex->current_select->no_wrap_view_item)
{
/*
as far as we have view, then item point to view_iter, so we
can use it directly for this view specific operation
*/
item= new Item_ref(view_iter.item_ptr(), tables->view_name.str,
field_name);
}
if (!found++)
(void) it->replace(item); // Replace '*'
else
it->after(item);
if (view && !thd->lex->current_select->no_wrap_view_item)
{
item= new Item_ref(it->ref(), tables->view_name.str,
field_name);
}
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (any_privileges)
{
@ -3328,7 +3332,8 @@ int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves, COND **conds)
thd->restore_backup_item_arena(arena, &backup);
if (embedded->on_expr && !embedded->on_expr->fixed)
{
if (embedded->on_expr->fix_fields(thd, tables, &table->on_expr))
if (embedded->on_expr->fix_fields(thd, tables,
&embedded->on_expr))
goto err_no_arena;
}
}

5
sql/sql_yacc.yy
View File

@ -5577,6 +5577,7 @@ insert:
LEX *lex= Lex;
lex->sql_command= SQLCOM_INSERT;
lex->duplicates= DUP_ERROR;
mysql_init_select(lex);
/* for subselects */
lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
lex->select_lex.resolve_mode= SELECT_LEX::INSERT_MODE;
@ -5596,6 +5597,7 @@ replace:
LEX *lex=Lex;
lex->sql_command = SQLCOM_REPLACE;
lex->duplicates= DUP_REPLACE;
mysql_init_select(lex);
lex->select_lex.resolve_mode= SELECT_LEX::INSERT_MODE;
}
replace_lock_option insert2
@ -5796,6 +5798,7 @@ delete:
{
LEX *lex= Lex;
lex->sql_command= SQLCOM_DELETE;
mysql_init_select(lex);
lex->lock_option= lex->thd->update_lock_default;
lex->ignore= 0;
lex->select_lex.init_order();
@ -7124,6 +7127,7 @@ set:
{
LEX *lex=Lex;
lex->sql_command= SQLCOM_SET_OPTION;
mysql_init_select(lex);
lex->option_type=OPT_SESSION;
lex->var_list.empty();
lex->one_shot_set= 0;
@ -7190,7 +7194,6 @@ option_value:
}
else
lex->var_list.push_back(new set_var_user(new Item_func_set_user_var($2,$4)));
}
| internal_variable_name equal set_expr_or_default
{

9
sql/table.cc
View File

@ -1702,6 +1702,7 @@ bool st_table_list::setup_ancestor(THD *thd, Item **conds,
if (field_translation)
{
DBUG_PRINT("info", ("there are already translation table"));
/* prevent look up in SELECTs tree */
thd->lex->current_select= &thd->lex->select_lex;
thd->lex->select_lex.no_wrap_view_item= 1;
@ -1727,7 +1728,7 @@ bool st_table_list::setup_ancestor(THD *thd, Item **conds,
if (where && !where->fixed && where->fix_fields(thd, ancestor, &where))
goto err;
if (check_option && !check_option->fixed &&
check_option->fix_fields(thd, ancestor, &where))
check_option->fix_fields(thd, ancestor, &check_option))
goto err;
restore_want_privilege();
@ -1767,11 +1768,11 @@ bool st_table_list::setup_ancestor(THD *thd, Item **conds,
{
/* save original name of view column */
char *name= item->name;
if (!item->fixed && item->fix_fields(thd, ancestor, &item))
transl[i].item= item;
if (!item->fixed && item->fix_fields(thd, ancestor, &transl[i].item))
goto err;
/* set new item get in fix fields and original column name */
transl[i].name= name;
transl[i++].item= item;
transl[i++].name= name;
}
field_translation= transl;
/* TODO: sort this list? Use hash for big number of fields */

1
sql/table.h
View File

@ -428,6 +428,7 @@ public:
bool end_of_fields() { return ptr == array_end; }
const char *name();
Item *item(THD *thd) { return ptr->item; }
Item **item_ptr() {return &ptr->item; }
Field *field() { return 0; }
};