On crashes generate a user-friendly resolved and demangled stack
trace when libc provides the necessary functions (newer libc on i386,
x86_64, powerpc, ia64, alpha and s390). Otherwise print a numeric
stack trace as before, relying on resolve_stack_dump utility.
Problem was incorrect data length in the key_restore function
resulting in overwriting the search key.
Solution, remove one byte in length if uneven bits are used.
Problem was that Field_bit used Field::hash() function that did not
know about using null-byte for storing bits.
Resulting in wrong length, which was caught by valgrind.
Solution: created a Field_bit::hash() that uses Field_bit::val_int()
and my_charset_bin-collation function hash_sort.
Also use the store function for platform independs
The problem is that one can not create a stored routine if sql_mode
contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when
a event is created, the mode is silently lost if sql_mode contains one
of the aforementioned. This was happening because the table definitions
which stored sql_mode values weren't being updated to accept new values
of sql_mode.
The solution is to update, in a backwards compatible manner, the various
table definitions (columns) that store the sql_mode value to take into
account the new possible values. One incompatible change is that if a event
that is being created can't be stored to the mysql.event table, an error
will be raised.
The tests case also ensure that new SQL modes will be added to the mysql.proc
and mysql.event tables, otherwise the tests will fail.
The bug was that handler::clone/handler::ha_open() call caused allocation of
cloned_copy->ref on the handler->table->mem_root. The allocated memory could not
be reclaimed until the table is flushed, so it was possible to exhaust memory by
repeatedly running index_merge queries without doing table flushes.
The fix:
- make handler::clone() allocate new_handler->ref on the passed mem_root
- make handler::ha_open() not allocate this->ref if it has already been allocated
There is no testcase as it is not possible to check small leaks from testsuite.
and my_innodb_commit_concurrency global variables.
Type of the my_innodb_autoextend_increment and the
my_innodb_commit_concurrency variables has been changed to
GET_ULONG.
Server handles truncation for assignment of too-long values
into CHAR/VARCHAR/TEXT columns in a different ways when the
truncated characters are spaces:
1. CHAR(N) columns silently ignore end-space truncation;
2. TEXT columns post a truncation warning/error in the
non-strict/strict mode.
3. VARCHAR columns always post a truncation note in
any mode.
Space truncation processing has been synchronised over
CHAR/VARCHAR/TEXT columns: current behavior of VARCHAR
columns has been propagated as standard.
Binary-encoded string/BLOB columns are not affected.
to leave
The artifact was caused by
a flaw in concurrent accessing the slave's io thd by
the io itself and a handling show slave status thread.
Namely, show_master_info did not acquire mi->run_lock mutex that is
specified for mi->io_thd member.
Fixed with deploying the mutex locking and unlocking. The mutex is kept
short time and without interleaving with mi->data_lock mutex.
Todo: to report and fix an issue with
sys_var_slave_skip_counter::{methods}
seem to acquire incorrectly
active_mi->rli.run_lock
instead of the specified
active_mi->rli.data_lock
A test case is difficult to compose, so rpl_packet should continue serving
as the indicator.
The problem is that deprecated syntax warnings were not being
suppressed when the stored routine is being parsed for the first
execution. It's doesn't make sense to print out deprecated
syntax warnings when the routine is being executed because this
kind of warning only matters when the routine is being created.
The solution is to suppress deprecated syntax warnings when
parsing the stored routine for loading into the cache (might
mean that the routine is being executed for the first time).
does not use trans tables
There had been two issues.
Rollback statement was recorded in binlog even though a multi-update
had not modified any non-transactional table.
The reason for this artifact was a false initial value of multi_update::transactional_tables.
Yet another artifact that explained on the bug page is that
`ha_autocommit_or_rollback' works differently depending on whether
a transaction engine has been compiled in.
Fixed: with setting multi_update::transactional_tables to zero at initialization
time. Multi-update on non-trans table won't cause ROLLBACK in binlog with
either compilation option.
The 2nd mentioned artifact comprises a self-standing issue (to be reported
separately).
the reason for the failure were incorrect asserts.
Removing asserts altogether as there is no the implication does not hold
(as explained in the comments for the file).
exists t1,t2,t3'
Bug #34245 Test ndb_binlog_multi fails for 'CREATE TABLE'
Bug #34246 Test rpl_ndb_transaction fails with 'Failed to create
'mysql/ndb_apply_status'
Tests cases didn't wait for cluster to come up due to a typo
in have_multi_ndb.inc.
When issuing a column level grant on a table which require pre-locking the
server crashed.
The reason behind the crash was that data structures used by the lock api
wasn't properly reinitialized in the case of a column level grant.
on table creates
The problem was in incompatible syntax for key definition in CREATE
TABLE.
5.0 supports only the following syntax for key definition (see "CREATE
TABLE syntax" in the manual):
{INDEX|KEY} [index_name] [index_type] (index_col_name,...)
While 5.1 parser supports the above syntax, the "preferred" syntax was
changed to:
{INDEX|KEY} [index_name] (index_col_name,...) [index_type]
The above syntax is used in 5.1 for the SHOW CREATE TABLE output, which
led to dumps generated by 5.1 being incompatible with 5.0.
Fixed by changing the parser in 5.0 to support both 5.0 and 5.1 syntax
for key definition.
Simple subselects are pulled into upper selects. This operation substitutes the
pulled subselect for the first item from the select list of the subselect.
If an alias is defined for a subselect it is inherited by the replacement item.
As this is done after fix_fields phase this alias isn't showed if the
replacement item is a stored function. This happens because the Item_func_sp::make_field
function makes send field from its result_field and ignores the defined alias.
Now when an alias is defined the Item_func_sp::make_field function sets it for
the returned field.
