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Cleanup of new code pushed into 5.0 since last pull

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Merged the different find_xxxx_table_in_list functions to one + some inline functions
This commit is contained in:
monty@mysql.com
2004-09-03 21:43:04 +03:00
parent c5a84657a8
commit cbd67f49e1
18 changed files with 491 additions and 458 deletions
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158
sql/sql_insert.cc
View File

@ -51,6 +51,8 @@ check_insert_fields(THD *thd, TABLE_LIST *table_list, List<Item> &fields,
List<Item> &values, ulong counter, bool check_unique)
{
TABLE *table= table_list->table;
int error;
if (fields.elements == 0 && values.elements != 0)
{
if (values.elements != table->fields)
@ -61,11 +63,11 @@ check_insert_fields(THD *thd, TABLE_LIST *table_list, List<Item> &fields,
return -1;
}
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (grant_option)
{
Field_iterator_table fields;
fields.set_table(table);
if (grant_option &&
check_grant_all_columns(thd, INSERT_ACL, &table->grant,
if (check_grant_all_columns(thd, INSERT_ACL, &table->grant,
table->table_cache_key, table->real_name,
&fields))
return -1;
@ -75,7 +77,7 @@ check_insert_fields(THD *thd, TABLE_LIST *table_list, List<Item> &fields,
}
else
{ // Part field list
TABLE_LIST *save_next= table_list->next_local;
TABLE_LIST *save_next;
if (fields.elements != values.elements)
{
my_printf_error(ER_WRONG_VALUE_COUNT_ON_ROW,
@ -84,14 +86,13 @@ check_insert_fields(THD *thd, TABLE_LIST *table_list, List<Item> &fields,
return -1;
}
table_list->next_local= 0;
thd->dupp_field=0;
if (setup_fields(thd, 0, table_list, fields, 1, 0, 0))
{
table_list->next_local= save_next;
return -1;
}
save_next= table_list->next_local; // fields only from first table
table_list->next_local= 0;
error= setup_fields(thd, 0, table_list, fields, 1, 0, 0);
table_list->next_local= save_next;
if (error)
return -1; // setup_fields failed
if (check_unique && thd->dupp_field)
{
@ -407,7 +408,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list,
!thd->cuted_fields))
{
thd->row_count_func= info.copied+info.deleted+info.updated;
send_ok(thd, (ulong) (ulong) thd->row_count_func, id);
send_ok(thd, (ulong) thd->row_count_func, id);
}
else
{
@ -420,7 +421,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list,
sprintf(buff, ER(ER_INSERT_INFO), (ulong) info.records,
(ulong) (info.deleted+info.updated), (ulong) thd->cuted_fields);
thd->row_count_func= info.copied+info.deleted+info.updated;
::send_ok(thd, (ulong) thd->row_count_func, (ulonglong)id,buff);
::send_ok(thd, (ulong) thd->row_count_func, id, buff);
}
free_underlaid_joins(thd, &thd->lex->select_lex);
table->insert_values=0;
@ -444,46 +445,58 @@ abort:
check_view_insertability()
view - reference on VIEW
IMPLEMENTATION
A view is insertable if the folloings are true:
- All columns in the view are columns from a table
- All not used columns in table have a default values
- All field in view are unique (not referring to the same column)
RETURN
FALSE - OK
view->contain_auto_increment is 1 if and only if the view contains an
auto_increment field
TRUE - can't be used for insert
*/
static bool check_view_insertability(TABLE_LIST *view, ulong query_id)
{
uint num= view->view->select_lex.item_list.elements;
TABLE *table= view->table;
Item **trans_start= view->field_translation, **trans_end=trans_start+num;
Item **trans;
Field **field_ptr= table->field;
ulong other_query_id= query_id - 1;
DBUG_ENTER("check_key_in_view");
uint i;
TABLE *table= view->table;
Item **trans= view->field_translation;
Field **field_ptr= table->field;
uint num= view->view->select_lex.item_list.elements;
ulong other_query_id= query_id - 1;
DBUG_ASSERT(view->table != 0 && view->field_translation != 0);
view->contain_auto_increment= 0;
/* check simplicity and prepare unique test of view */
for (i= 0; i < num; i++)
for (trans= trans_start; trans != trans_end; trans++)
{
Item_field *field;
/* simple SELECT list entry (field without expression) */
if (trans[i]->type() != Item::FIELD_ITEM)
if ((*trans)->type() != Item::FIELD_ITEM)
DBUG_RETURN(TRUE);
if (((Item_field *)trans[i])->field->type() == Field::NEXT_NUMBER)
field= (Item_field *)(*trans);
if (field->field->unireg_check == Field::NEXT_NUMBER)
view->contain_auto_increment= 1;
/* prepare unique test */
((Item_field *)trans[i])->field->query_id= other_query_id;
field->field->query_id= other_query_id;
}
/* unique test */
for (i= 0; i < num; i++)
for (trans= trans_start; trans != trans_end; trans++)
{
Item_field *field= (Item_field *)trans[i];
/* Thanks to test above, we know that all columns are of type Item_field */
Item_field *field= (Item_field *)(*trans);
if (field->field->query_id == query_id)
DBUG_RETURN(TRUE);
field->field->query_id= query_id;
}
/* VIEW contain all fields without default value */
for (; *field_ptr; ++field_ptr)
for (; *field_ptr; field_ptr++)
{
Field *field= *field_ptr;
/* field have not default value */
@ -491,14 +504,13 @@ static bool check_view_insertability(TABLE_LIST *view, ulong query_id)
(table->timestamp_field != field ||
field->unireg_check == Field::TIMESTAMP_UN_FIELD))
{
uint i= 0;
for (; i < num; i++)
for (trans= trans_start; ; trans++)
{
if (((Item_field *)trans[i])->field == *field_ptr)
break;
if (trans == trans_end)
DBUG_RETURN(TRUE); // Field was not part of view
if (((Item_field *)(*trans))->field == *field_ptr)
break; // ok
}
if (i >= num)
DBUG_RETURN(TRUE);
}
}
DBUG_RETURN(FALSE);
@ -506,29 +518,28 @@ static bool check_view_insertability(TABLE_LIST *view, ulong query_id)
/*
Prepare items in INSERT statement
Check if table can be updated
SYNOPSIS
mysql_prepare_insert()
thd - thread handler
table_list - global/local table list
mysql_prepare_insert_check_table()
thd Thread handle
table_list Table list (only one table)
fields List of fields to be updated
where Pointer to where clause
RETURN VALUE
0 - OK
-1 - error (message is not sent to user)
RETURN
0 ok
1 ERROR
*/
int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
List<Item> &fields, List_item *values,
List<Item> &update_fields, List<Item> &update_values,
enum_duplicates duplic)
static bool mysql_prepare_insert_check_table(THD *thd, TABLE_LIST *table_list,
List<Item> &fields, COND **where)
{
bool insert_into_view= (table_list->view != 0);
DBUG_ENTER("mysql_prepare_insert");
DBUG_ENTER("mysql_prepare_insert_check_table");
/* TODO: use this condition for 'WHITH CHECK OPTION' */
Item *unused_conds= 0;
if (setup_tables(thd, table_list, &unused_conds))
DBUG_RETURN(-1);
if (setup_tables(thd, table_list, where))
DBUG_RETURN(1);
if (insert_into_view && !fields.elements)
{
@ -542,8 +553,37 @@ int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
check_view_insertability(table_list, thd->query_id)))
{
my_error(ER_NON_UPDATABLE_TABLE, MYF(0), table_list->alias, "INSERT");
DBUG_RETURN(-1);
DBUG_RETURN(1);
}
DBUG_RETURN(0);
}
/*
Prepare items in INSERT statement
SYNOPSIS
mysql_prepare_insert()
thd Thread handler
table_list Global/local table list
RETURN VALUE
0 OK
-1 error (message is not sent to user)
*/
int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
List<Item> &fields, List_item *values,
List<Item> &update_fields, List<Item> &update_values,
enum_duplicates duplic)
{
bool insert_into_view= (table_list->view != 0);
/* TODO: use this condition for 'WITH CHECK OPTION' */
Item *unused_conds= 0;
DBUG_ENTER("mysql_prepare_insert");
if (mysql_prepare_insert_check_table(thd, table_list, fields, &unused_conds))
DBUG_RETURN(-1);
if (check_insert_fields(thd, table_list, fields, *values, 1,
!insert_into_view) ||
@ -553,7 +593,7 @@ int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
setup_fields(thd, 0, table_list, update_values, 0, 0, 0))))
DBUG_RETURN(-1);
if (find_real_table_in_list(table_list->next_global,
if (find_table_in_global_list(table_list->next_global,
table_list->db, table_list->real_name))
{
my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->real_name);
@ -1555,27 +1595,11 @@ bool delayed_insert::handle_inserts(void)
int mysql_insert_select_prepare(THD *thd)
{
LEX *lex= thd->lex;
TABLE_LIST *table_list= lex->query_tables;
bool insert_into_view= (table_list->view != 0);
DBUG_ENTER("mysql_insert_select_prepare");
if (setup_tables(thd, table_list, &lex->select_lex.where))
if (mysql_prepare_insert_check_table(thd, lex->query_tables,
lex->field_list,
&lex->select_lex.where))
DBUG_RETURN(-1);
if (insert_into_view && !lex->field_list.elements)
{
lex->empty_field_list_on_rset= 1;
insert_view_fields(&lex->field_list, table_list);
}
if (!table_list->updatable ||
check_key_in_view(thd, table_list) ||
(insert_into_view &&
check_view_insertability(table_list, thd->query_id)))
{
my_error(ER_NON_UPDATABLE_TABLE, MYF(0), table_list->alias, "INSERT");
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
}