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Bug#54783: optimize table crashes with invalid timestamp default

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value and NO_ZERO_DATE

The problem was that a older version of the error path for a
failed admin statement relied upon a few error conditions being
met in order to access a table handler, the first one being that
the table object pointer was not NULL. Probably due to chance,
in all cases a table object was closed but the reference wasn't
reset, the other conditions didn't evaluate to true. With the
addition of a new check on the error path, the handler started
being dereferenced whenever it was not reset to NULL, causing
problems for code paths which closed the table but didn't reset
the reference.

The solution is to reset the reference whenever a admin statement
fails and the tables are closed.
This commit is contained in:
Davi Arnaut 2010-07-06 14:38:03 -03:00
parent bf4a5d961d
commit 07a9c082d9
3 changed files with 37 additions and 0 deletions
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18
mysql-test/r/partition_innodb.result
View file

@ -373,3 +373,21 @@ CREATE TABLE t1 (a INT) ENGINE=InnoDB
PARTITION BY list(a) (PARTITION p1 VALUES IN (1));
CREATE INDEX i1 ON t1 (a);
DROP TABLE t1;
#
# Bug#54783: optimize table crashes with invalid timestamp default value and NO_ZERO_DATE
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a INT, b TIMESTAMP DEFAULT '0000-00-00 00:00:00')
ENGINE=INNODB PARTITION BY LINEAR HASH (a) PARTITIONS 1;
SET @old_mode = @@sql_mode;
SET SESSION sql_mode = 'NO_ZERO_DATE';
OPTIMIZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
test.t1 optimize error Invalid default value for 'b'
test.t1 optimize status Operation failed
Warnings:
Warning 1265 Data truncated for column 'b' at row 1
Error 1067 Invalid default value for 'b'
SET SESSION sql_mode = @old_mode;
DROP TABLE t1;

16
mysql-test/t/partition_innodb.test
View file

@ -452,3 +452,19 @@ SELECT * FROM t1;
COMMIT;
DROP TABLE t1;
--enable_parsing
--echo #
--echo # Bug#54783: optimize table crashes with invalid timestamp default value and NO_ZERO_DATE
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (a INT, b TIMESTAMP DEFAULT '0000-00-00 00:00:00')
ENGINE=INNODB PARTITION BY LINEAR HASH (a) PARTITIONS 1;
SET @old_mode = @@sql_mode;
SET SESSION sql_mode = 'NO_ZERO_DATE';
OPTIMIZE TABLE t1;
SET SESSION sql_mode = @old_mode;
DROP TABLE t1;

3
sql/sql_table.cc
View file

@ -4930,6 +4930,8 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
*/
if (thd->stmt_da->is_ok())
thd->stmt_da->reset_diagnostics_area();
table->table= NULL;
result_code= result_code ? HA_ADMIN_FAILED : HA_ADMIN_OK;
goto send_result;
}
}
@ -5060,6 +5062,7 @@ send_result_message:
trans_commit_stmt(thd);
trans_commit(thd);
close_thread_tables(thd);
table->table= NULL;
thd->mdl_context.release_transactional_locks();
if (!result_code) // recreation went ok
{