plugin_load.test created lines in the warnings files and made
pushbuild cells yellow. Some pushbuild systems are configured
so that they don't build the ha_example plugin. Trying to load
them creates error messages in the error log. These were copied
to the warnings file.
Fixed by ignoring expected error messages for non-existent
ha_example.
localhost/default port
When creating federated table that points to unspecified host or
localhost on unspecified port or port is 0, small memory leak occurs.
This happens because we make a copy of unix socket path, which is
never freed.
With this fix we do not make a copy of unix socket path, instead
share->socket points to MYSQL_UNIX_ADDR constant directly.
This fix is covered by a test case for BUG34788.
Affects 5.0 only.
mysql_client_test causing a severe slowdown and increase
in memory usage, especially for test cases with long queries.
The solution is to enable the general log only in tests that
actually need the general log and disable it during the
execution of all other tests.
for YEAR data type.
The problem was that for some unknown reason 0 was not allowed
as a default value for YEAR data type. That was coded before BK.
However the Manual does not say a word about such a limitation.
Also, it looks inconsistent with other data types.
The fix is to allow 0 as a default value.
correctly - crashes server !
Creating federated table with connect string containing empty
(zero-length) host name and port is evaluated as 0 (port is
incorrect, omitted or 0) crashes server.
This happens because federated calls strcmp() with NULL pointer.
Fixed by avoiding strcmp() call if hostname is set to NULL.
When CREATE SERVER is issued, it allocates memory on memory root
to store cached server structure. When DROP SERVER is issued,
it doesn't release this memory, as it is impossible with the
memory root.
We use the same allocation strategy for plugins and acl. The problem
here that there was no way (except for the server restart) to force
'servers' code to release this memory.
With this fix it is possible to release unused server cache memory
by FLUSH PRIVILEGES.
No test case for this fix.
well enough
CREATE SERVER may cause server crash if there is not enough memory
to execute this operation.
Fixed that create_server() and prepare_server_struct_for_insert()
didn't check return value of functions that allocate memory.
As this is out of memory issue fix, not test case available.
The problem is that unimplemented WIN32 version of pthread_kill
is returning ESRCH no matter the arguments, causing calls to
mysqld_list_processes to set the procinfo to dead because
pthread_kill returns non zero. The dead procinfo would show
up on a second invocation of show processlist.
binlog_format=mixed
Statement-based replication of DELETE ... LIMIT, UPDATE ... LIMIT,
INSERT ... SELECT ... LIMIT is not safe as order of rows is not
defined.
With this fix, we issue a warning that this statement is not safe to
replicate in statement mode, or go to row-based mode in mixed mode.
Note that we may consider a statement as safe if ORDER BY primary_key
is present. However it may confuse users to see very similiar statements
replicated differently.
Note 2: regular UPDATE statement (w/o LIMIT) is unsafe as well, but
this patch doesn't address this issue. See comment from Kristian
posted 18 Mar 10:55.
Each time the server reloads privileges containing table grants, the
system will allocate too much memory than needed because of badly
chosen growth prediction in the underlying dynamic arrays.
This patch introduces a new signature to the hash container initializer
which enables a much more pessimistic approach in favour for more
efficient memory useage.
This patch was supplied by Google Inc.
