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a fix (bug #4198: Incorrect key file for table).

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This commit is contained in:
ram@gw.mysql.r18.ru
2004-06-21 15:17:07 +05:00
parent 4680a23867
commit df727fbb65
3 changed files with 23 additions and 1 deletions
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10
mysql-test/r/delete.result
View File

@ -120,3 +120,13 @@ a b
0 10 0 10
1 11 1 11
drop table t11, t12, t2; drop table t11, t12, t2;
create table t1 (a int, b int, unique key (a), key (b));
insert into t1 values (3, 3), (7, 7);
delete t1 from t1 where a = 3;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select * from t1;
a b
7 7
drop table t1;

11
mysql-test/t/delete.test
View File

@ -98,3 +98,14 @@ select * from t11;
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a); delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
select * from t11; select * from t11;
drop table t11, t12, t2; drop table t11, t12, t2;
#
# Bug #4198: deletion and KEYREAD
#
create table t1 (a int, b int, unique key (a), key (b));
insert into t1 values (3, 3), (7, 7);
delete t1 from t1 where a = 3;
check table t1;
select * from t1;
drop table t1;

3
sql/sql_select.cc
View File

@ -5972,7 +5972,8 @@ join_read_const_table(JOIN_TAB *tab, POSITION *pos)
else else
{ {
if (!table->key_read && table->used_keys.is_set(tab->ref.key) && if (!table->key_read && table->used_keys.is_set(tab->ref.key) &&
!table->no_keyread) !table->no_keyread &&
(int) table->reginfo.lock_type <= (int) TL_READ_HIGH_PRIORITY)
{ {
table->key_read=1; table->key_read=1;
table->file->extra(HA_EXTRA_KEYREAD); table->file->extra(HA_EXTRA_KEYREAD);