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merge

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This commit is contained in:
bell@sanja.is.com.ua
2004-10-05 13:41:51 +03:00
parent a9b759af3e 67fcac7a87
commit a78f817d20
51 changed files with 1292 additions and 259 deletions
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60
sql/sql_prepare.cc
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@ -959,6 +959,7 @@ error:
RETURN VALUE
0 success
2 convert to multi_update
1 error, sent to client
-1 error, not sent to client
*/
@ -975,6 +976,15 @@ static int mysql_test_update(Prepared_statement *stmt,
if (!(res=open_and_lock_tables(thd, table_list)))
{
if (table_list->table == 0)
{
DBUG_ASSERT(table_list->view &&
table_list->ancestor && table_list->ancestor->next_local);
stmt->lex->sql_command= SQLCOM_UPDATE_MULTI;
DBUG_PRINT("info", ("Switch to multi-update (command replaced)"));
/* convert to multiupdate */
return 2;
}
if (!(res= mysql_prepare_update(thd, table_list,
&select->where,
select->order_list.elements,
@ -1027,6 +1037,15 @@ static int mysql_test_delete(Prepared_statement *stmt,
if (!(res=open_and_lock_tables(thd, table_list)))
{
if (!table_list->table)
{
DBUG_ASSERT(table_list->view &&
table_list->ancestor && table_list->ancestor->next_local);
my_error(ER_VIEW_DELETE_MERGE_VIEW, MYF(0),
table_list->view_db.str, table_list->view_name.str);
DBUG_RETURN(-1);
}
res= mysql_prepare_delete(thd, table_list, &lex->select_lex.where);
lex->unit.cleanup();
}
@ -1219,7 +1238,10 @@ static int select_like_statement_test(Prepared_statement *stmt,
LEX *lex= stmt->lex;
int res= 0;
if (tables && (res= open_and_lock_tables(thd, tables)))
/* check that tables was not opened during conversion from usual update */
if (tables &&
(!tables->table && !tables->view) &&
(res= open_and_lock_tables(thd, tables)))
goto end;
if (specific_prepare && (res= (*specific_prepare)(thd)))
@ -1285,6 +1307,7 @@ static int mysql_test_create_table(Prepared_statement *stmt)
mysql_test_multiupdate()
stmt prepared statemen handler
tables list of tables queries
converted converted to multi-update from usual update
RETURN VALUE
0 success
@ -1292,10 +1315,11 @@ static int mysql_test_create_table(Prepared_statement *stmt)
-1 error, not sent to client
*/
static int mysql_test_multiupdate(Prepared_statement *stmt,
TABLE_LIST *tables)
TABLE_LIST *tables,
bool converted)
{
int res;
if ((res= multi_update_precheck(stmt->thd, tables)))
if (!converted && (res= multi_update_precheck(stmt->thd, tables)))
return res;
return select_like_statement_test(stmt, tables, &mysql_multi_update_prepare);
}
@ -1325,7 +1349,19 @@ static int mysql_test_multidelete(Prepared_statement *stmt,
uint fake_counter;
if ((res= multi_delete_precheck(stmt->thd, tables, &fake_counter)))
return res;
return select_like_statement_test(stmt, tables, &mysql_multi_delete_prepare);
if ((res= select_like_statement_test(stmt, tables,
&mysql_multi_delete_prepare)))
return res;
if (!tables->table)
{
DBUG_ASSERT(tables->view &&
tables->ancestor && tables->ancestor->next_local);
my_error(ER_VIEW_DELETE_MERGE_VIEW, MYF(0),
tables->view_db.str, tables->view_name.str);
return -1;
}
return 0;
}
@ -1404,6 +1440,11 @@ static int send_prepare_results(Prepared_statement *stmt, bool text_protocol)
case SQLCOM_UPDATE:
res= mysql_test_update(stmt, tables);
if (res != 2)
break;
case SQLCOM_UPDATE_MULTI:
res= mysql_test_multiupdate(stmt, tables, res == 2);
break;
case SQLCOM_DELETE:
@ -1431,10 +1472,6 @@ static int send_prepare_results(Prepared_statement *stmt, bool text_protocol)
case SQLCOM_DELETE_MULTI:
res= mysql_test_multidelete(stmt, tables);
break;
case SQLCOM_UPDATE_MULTI:
res= mysql_test_multiupdate(stmt, tables);
break;
case SQLCOM_INSERT_SELECT:
res= mysql_test_insert_select(stmt, tables);
@ -1716,8 +1753,15 @@ void reset_stmt_for_execute(THD *thd, LEX *lex)
were closed in the end of previous prepare or execute call.
*/
tables->table= 0;
if (tables->nested_join)
tables->nested_join->counter= 0;
}
lex->current_select= &lex->select_lex;
/* restore original list used in INSERT ... SELECT */
if (lex->leaf_tables_insert)
lex->select_lex.leaf_tables= lex->leaf_tables_insert;
if (lex->result)
lex->result->cleanup();
}