Problem was usage of read_range_first with an empty key.
Solution was to not to give a key if it was empty.
mysql-test/r/partition.result:
Bug#40954: Crash in MyISAM index code with concurrency test using partitioned tables
Updated test result.
mysql-test/t/partition.test:
Bug#40954: Crash in MyISAM index code with concurrency test using partitioned tables
Added test case
ONLY_FULL_GROUP_BY
The check for non-aggregated columns in queries with aggregate function, but without
GROUP BY was treating all the parts of the query as if they are in the SELECT list.
Fixed by ignoring the non-aggregated fields in the WHERE clause.
mysql-test/r/func_group.result:
Bug #39656: test case
mysql-test/t/func_group.test:
Bug #39656: test case
sql/sql_select.cc:
Bug #39656: ignore the new non-aggregated column refs in a WHERE
by saving the state so far and then adding only the new values of the other
parts of the bitmask.
Several system variables did not behave like system variables should do.
When trying to SET them or use them in SELECT, they were reported as
"unknown system variable". But they appeared in SHOW VARIABLES.
This has been fixed by removing the "fixed_vars" array of variables
and integrating the variables into the normal system variables chain.
All of these variables do now behave as read-only global-only
variables. Trying to SET them tells they are read-only, trying to
SELECT the session value tells they are global only. Selecting the
global value works. It delivers the same value as SHOW VARIABLES.
mysql-test/r/variables-notembedded.result:
Bug#28234 - global/session scope - documentation vs implementation
New test result.
mysql-test/r/variables.result:
Bug#28234 - global/session scope - documentation vs implementation
New test result.
mysql-test/t/variables-notembedded.test:
Bug#28234 - global/session scope - documentation vs implementation
Added a test for each moved variable that is not present in an
embedded server.
mysql-test/t/variables.test:
Bug#28234 - global/session scope - documentation vs implementation
Added a test for each moved variable that is also present in an
embedded server.
sql/item_func.cc:
Bug#28234 - global/session scope - documentation vs implementation
Added SHOW_BOOL to some Item_func_get_system_var methods.
sql/set_var.cc:
Bug#28234 - global/session scope - documentation vs implementation
Moved all variables from the "fixed_vars" array into the normal
system variables chain by using the new variable class sys_var_const.
Removed the fixed_show_vars array and its initialization in
enumerate_sys_vars().
Removed mysql_append_static_vars(), which added fixed_vars arrays
to the fixed_show_vars array.
sql/set_var.h:
Bug#28234 - global/session scope - documentation vs implementation
Added the new system variable class sys_var_const.
Removed declaration of mysql_append_static_vars().
sql/slave.cc:
Bug#28234 - global/session scope - documentation vs implementation
Moved the definition of show_slave_skip_errors() from sql_repl.cc
to here and renamed it to print_slave_skip_errors().
Changed print_slave_skip_errors() to create a static buffer with
a printable version of the error numbers set.
Added a call of print_slave_skip_errors() to init_slave_skip_errors().
sql/slave.h:
Bug#28234 - global/session scope - documentation vs implementation
Added declaration of slave_skip_error_names.
sql/sql_repl.cc:
Bug#28234 - global/session scope - documentation vs implementation
Moved all variables from the "fixed_vars" array into the normal
system variables chain by using the new variable class sys_var_const.
Moved the definition of show_slave_skip_errors() to slave.cc and
modified it to compute the string once at server initialization only.
Removed the call to mysql_append_static_vars().
the problem is the same as reported in bug#20835,
so the fix is backport of bug#20835 patch.
mysql-test/r/subselect.result:
test result
mysql-test/t/subselect.test:
test case
returns truncated results
Problem: performig conversion from {INT, DECIMAL, REAL} to CHAR
we incorrectly set its max length in some cases that may lead
to truncated results returned.
Fix: properly set CONVERT({INT, DECIMAL, REAL}, CHAR) result's
max length.
mysql-test/r/ctype_utf8.result:
Fix for bug#36772: When using UTF8, CONVERT with GROUP BY
returns truncated results
- test result.
mysql-test/t/ctype_utf8.test:
Fix for bug#36772: When using UTF8, CONVERT with GROUP BY
returns truncated results
- test case.
sql/item_timefunc.cc:
Fix for bug#36772: When using UTF8, CONVERT with GROUP BY
returns truncated results
- calculating Item_char_typecast::max_length use initial
argument's charset mbmaxlen instead of from_cs->mbmaxlen,
as from_cs may differ in some case (see comment above).
variable settings (rpl_sys)
Problem: under certain conditions (e.g. user variables usage in triggers)
accessing a user defined variable we may use a variables hash table that
belongs to already deleted thread. It happens if
thd= new THD;
has the same address as just deleted thd as we use
if (stored_thd == thd)
to check.
That may lead to unpredictable results, server crash etc.
Fix: use thread_id instead of thd address to distinguish threads.
Note: no simple and repeatable test case.
sql/item_func.cc:
Fix for bug#40770: Server Crash when running with triggers including
variable settings (rpl_sys)
- store and use thd->thread_id to distinguish threads instead of
thread address as it may be the same as just deleted thread had,
i.e. we may get (old_thd == new_thd) after
delete old_thd;
new_thd= new THD;
- set entry_thread_id only when we get a real entry, clear it
if the hash search fails.
sql/item_func.h:
Fix for bug#40770: Server Crash when running with triggers including
variable settings (rpl_sys)
- Item_func_set_user_var::entry_thread_id introduced.
Problem: memory leak occurs when we open a federated table
that has its share in the hash.
Fix: free not used memory.
Note: the fix should NOT be merged to 5.1 (the code changed).
sql/ha_federated.cc:
Fix for bug#40875: Memory leak in FEDERATED handler
- free memory (tmp_share.scheme) allocated in the parse_url()
if it isn't used anymore.
set but is ignored".
This patch makes @@session.max_allowed_packed and
@@session.net_buffer_length read-only as suggested in the bug
report. The user will have to use SET GLOBAL (and reconnect)
to alter the session values of these variables.
The error string ER_VARIABLE_IS_READONLY is introduced.
Tests are modified accordingly.
sql/set_var.cc:
The class sys_var_thd_ulong_session_readonly is introduced as
a specialization of sys_var_thd_ulong implementing a read-only
session variable. The class overrides check() and
check_default() to achieve the read-only property for the
session part of the variable.
sql/set_var.h:
The class sys_var_thd_ulong_session_readonly is introduced as
a specialization of sys_var_thd_ulong implementing a read-only
session variable. The class overrides check() and
check_default() to achieve the read-only property for the
session part of the variable.
sql/share/errmsg.txt:
New error ER_VARIABLE_IS_READONLY.
The test itself is not faulty. The testcase timeout
problem happens if this IMHO mid size resource
(space in vardir, virtual memory, amount of disk I/O)
consuming test meets a weak (excessive disk I/O caused
by parallel applications or paging) testing box.
The modifications:
- Move the most time and disk I/O consuming subtest
for Bug 1820 into its own script (multi_update2)
This will reduce the likelihood that we exceed the
testcase timeout.
- Replace error numbers with error names
- Minor improvements of the formatting
-
Cache size is truncated via 32bit ulong in ha_init_key_cache() and
ha_resize_key_cache()
This change fixes the cast to size_t instead of ulong. This cast is safe,
because key_buffer_size parameter is limited to SIZE_T_MAX
That's a Win-specific error.
When we create libmysqld.dll we have many libraries like mysys, dbug,
strings, etc linked into that dll, so the application built upon
this library shouldn't link these libraries to itself, rather use
those inside the dll.
Fixed by redirecting calls into the libmysqld.dll
per-file comments:
dbug/dbug.c
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
fake _db_something definitions added
include/my_dbug.h
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
fake _db_something declarations added
libmysqld/examples/CMakeLists.txt
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
superfluous libraries removed from linking
libmysqld/libmysqld.def
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
set of mysys functions added to the export section
using crashes server
When the server is configured to use a RSA key, and when the client sends
a cipher-suite list that contains a non-RSA key as acceptable, the server
would try to process that key even though it was impossible.
Now, yaSSL sets its own acceptable-cipher list according to what kind of
key the server is started with, and will never explore and try to pair
impossible combinations.
This involves a partial import of the current YaSSL tree, not the whole
thing, so as to try to avoid introducing new bugs.
(Updated to avoid many whitespace changes and make diff smaller.)
Re-enabling this test in 5.1 tree since the bug that caused disabling
(Bug#33696 CSV storage engine allows nullable colums via ALTER TABLE statements)
doesn't appear in 5.1 (6.0 only)
Recorded .result file and removed test from the main.disabled.def file.
GLOBAL STATUS is calculated by studying the list of threads. In the
embedded server threads were not linked to the internal list, so the
calculation always returns 0. Fixed by 'linking' the embedded-server
threads to the same list
per-file comments:
libmysqld/lib_sql.cc
Bug#34517 SHOW GLOBAL STATUS does not work properly in embedded server.
Add newly created 'threads' to the internal thread list.
Remove them from the list as they're freed.
mysql-test/r/information_schema.result
Bug#34517 SHOW GLOBAL STATUS does not work properly in embedded server.
test result
mysql-test/t/information_schema.test
Bug#34517 SHOW GLOBAL STATUS does not work properly in embedded server.
test case added
Item_func_div didn't calculate the precision of the result properly.
The result of 5/0.0001 is 5000 so we have to add decimals of the divisor
to the planned precision.
per-file comments:
mysql-test/r/type_newdecimal.result
Bug#31616 div_precision_increment description looks wrong
test result fixed
mysql-test/t/type_newdecimal.test
Bug#31616 div_precision_increment description looks wrong
test case
sql/item_func.cc
Bug#31616 div_precision_increment description looks wrong
precision must be increased with args[1]->decimals parameter
The function thd_security_context allocates memory on an unprotected MEM_ROOT if the
message length becomes longer than requested and the initial buffer memory needs to
be reallocated.
This patch fixes the design error by copying parts of the reallocated buffer
to the destination buffer. This works because the destination buffer isn't
owned by the String object and thus isn't freed when a new buffer is allocated.
Any new memory allocated by the String object is reclaimed when the object
is destroyed at the end of the function call.
