Commit f4fb48ba authored by unknown's avatar unknown
Browse files

Bug#9719: DELETE with WHERE on HEAP table just deletes first row of matched 

set.

(Ramil's patch, recreated.)


heap/hp_delete.c:
  Reset info->lastkey_len for further heap_rnext/heap_rprev calls.
mysql-test/r/heap_btree.result:
  Test for bug #9719: DELETE with WHERE on HEAP table just deletes first 
  row of matched set.
mysql-test/t/heap_btree.test:
  Test for bug #9719: DELETE with WHERE on HEAP table just deletes first 
  row of matched set.
parent 98daac18

heap/hp_delete.c

+3 −0
Original line number Diff line number Diff line
@@ -73,7 +73,10 @@ int hp_rb_delete_key(HP_INFO *info, register HP_KEYDEF *keyinfo, 
  int res;



  if (flag) 

  {

    info->last_pos= NULL; /* For heap_rnext/heap_rprev */

    info->lastkey_len= 0;

  }



  custom_arg.keyseg= keyinfo->seg;

  custom_arg.key_length= hp_rb_make_key(keyinfo, info->recbuf, record, recpos);

mysql-test/r/heap_btree.result

+35 −0
Original line number Diff line number Diff line
@@ -246,3 +246,38 @@ DELETE from t1 where a < 100; 
SELECT * from t1;

a

DROP TABLE t1;

create table t1(a int not null, key using btree(a)) engine=heap;

insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);

select a from t1 where a > 2;

a

3

3

3

3

delete from t1 where a < 4;

select a from t1;

a

insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);

select a from t1 where a > 4;

a

delete from t1 where a > 4;

select a from t1;

a

3

3

1

3

3

1

2

2

2

select a from t1 where a > 3;

a

delete from t1 where a >= 2;

select a from t1;

a

1

1

drop table t1;

End of 4.1 tests

mysql-test/t/heap_btree.test

+19 −1
Original line number Diff line number Diff line
@@ -164,4 +164,22 @@ DELETE from t1 where a < 100; 
SELECT * from t1;

DROP TABLE t1;



# End of 4.1 tests
 
#

# Bug #9719: problem with delete

#



create table t1(a int not null, key using btree(a)) engine=heap;

insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);

select a from t1 where a > 2;

delete from t1 where a < 4;

select a from t1;

insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);

select a from t1 where a > 4;

delete from t1 where a > 4;

select a from t1;

select a from t1 where a > 3;

delete from t1 where a >= 2;

select a from t1;

drop table t1;



--echo End of 4.1 tests