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Merge svojtovich@bk-internal.mysql.com:/home/bk/mysql-5.1

Browse Source 
into  mysql.com:/home/svoj/devel/mysql/BUG26238/mysql-5.1-engines
This commit is contained in:
svoj@june.mysql.com 2007-03-02 14:17:55 +04:00
commit 31322ca0cb
4 changed files with 28 additions and 19 deletions
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7
mysql-test/r/heap.result
View File

@ -731,3 +731,10 @@ SELECT COUNT(*) FROM t1 WHERE c=REPEAT('a',256);
COUNT(*)
2
DROP TABLE t1;
CREATE TABLE t1(c1 VARCHAR(100), c2 INT) ENGINE=MEMORY;
INSERT INTO t1 VALUES('', 0);
ALTER TABLE t1 MODIFY c1 VARCHAR(101);
SELECT c2 FROM t1;
c2
0
DROP TABLE t1;

9
mysql-test/t/heap.test
View File

@ -471,3 +471,12 @@ SELECT COUNT(*) FROM t1 WHERE c=REPEAT('a',256);
DROP TABLE t1;
# End of 5.0 tests
#
# BUG#26080 - Memory Storage engine not working properly
#
CREATE TABLE t1(c1 VARCHAR(100), c2 INT) ENGINE=MEMORY;
INSERT INTO t1 VALUES('', 0);
ALTER TABLE t1 MODIFY c1 VARCHAR(101);
SELECT c2 FROM t1;
DROP TABLE t1;

7
storage/heap/ha_heap.cc
View File

@ -703,9 +703,10 @@ bool ha_heap::check_if_incompatible_data(HA_CREATE_INFO *info,
uint table_changes)
{
/* Check that auto_increment value was not changed */
if ((table_changes != IS_EQUAL_YES &&
info->used_fields & HA_CREATE_USED_AUTO) &&
info->auto_increment_value != 0)
if ((info->used_fields & HA_CREATE_USED_AUTO &&
info->auto_increment_value != 0) ||
table_changes == IS_EQUAL_NO ||
table_changes & IS_EQUAL_PACK_LENGTH) // Not implemented yet
return COMPATIBLE_DATA_NO;
return COMPATIBLE_DATA_YES;
}

24
storage/myisam/mi_open.c
View File

@ -506,22 +506,6 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
share->data_file_type = DYNAMIC_RECORD;
my_afree((gptr) disk_cache);
mi_setup_functions(share);
if (open_flags & HA_OPEN_MMAP)
{
info.s= share;
if (mi_dynmap_file(&info, share->state.state.data_file_length))
{
/* purecov: begin inspected */
/* Ignore if mmap fails. Use file I/O instead. */
DBUG_PRINT("warning", ("mmap failed: errno: %d", errno));
/* purecov: end */
}
else
{
share->file_read= mi_mmap_pread;
share->file_write= mi_mmap_pwrite;
}
}
share->is_log_table= FALSE;
#ifdef THREAD
thr_lock_init(&share->lock);
@ -552,6 +536,14 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
}
}
#endif
/*
Memory mapping can only be requested after initializing intern_lock.
*/
if (open_flags & HA_OPEN_MMAP)
{
info.s= share;
mi_extra(&info, HA_EXTRA_MMAP, 0);
}
}
else
{