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The problem is that the fix Bug#29784 was mistakenly
reverted when updating YaSSL to a newer version.
The solution is to re-apply the fix and this time
actually add a meaningful test case so that possible
regressions are caught.
extra/yassl/taocrypt/src/coding.cpp:
Fixed buffer allocation to compute the proper maximum
decoded size: (EncodedLength * 3/4) + 3
mysql-test/std_data/server8k-cert.pem:
Update certificate.
mysql-test/std_data/server8k-key.pem:
Update key.
mysql-test/t/ssl_8k_key-master.opt:
Start the server using the certificate and key that
triggers the problem.
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Problem: The original patch didn't compile on debug_werror
due to wrong format in printf("%d") for size_t variables.
Fix: Adding cast to (int).
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/*![:version:] Query Code */, where [:version:] is a sequence of 5
digits representing the mysql server version(e.g /*!50200 ... */),
is a special comment that the query in it can be executed on those
servers whose versions are larger than the version appearing in the
comment. It leads to a security issue when slave's version is larger
than master's. A malicious user can improve his privileges on slaves.
Because slave SQL thread is running with SUPER privileges, so it can
execute queries that he/she does not have privileges on master.
This bug is fixed with the logic below:
- To replace '!' with ' ' in the magic comments which are not applied on
master. So they become common comments and will not be applied on slave.
- Example:
'INSERT INTO t1 VALUES (1) /*!10000, (2)*/ /*!99999 ,(3)*/
will be binlogged as
'INSERT INTO t1 VALUES (1) /*!10000, (2)*/ /* 99999 ,(3)*/
mysql-test/suite/rpl/t/rpl_conditional_comments.test:
Test the patch for this bug.
sql/mysql_priv.h:
Rename inBuf as rawBuf and remove the const limitation.
sql/sql_lex.cc:
To replace '!' with ' ' in the magic comments which are not applied on
master.
sql/sql_lex.h:
Remove the const limitation on parameter buff, as it can be modified in the function since
this patch.
Add member function yyUnput for Lex_input_stream. It set a character back the query buff.
sql/sql_parse.cc:
Rename inBuf as rawBuf and remove the const limitation.
sql/sql_partition.cc:
Remove the const limitation on parameter part_buff, as it can be modified in the function since
this patch.
sql/sql_partition.h:
Remove the const limitation on parameter part_buff, as it can be modified in the function since
this patch.
sql/table.h:
Remove the const limitation on variable partition_info, as it can be modified since
this patch.
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Do not attempt to test the innodb plugin with the embedded server,
it's not supported for now.
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Problem: when SHOW BINLOG EVENTS was issued, it increased the value of
@@session.max_allowed_packet. This allowed a non-root user to increase
the amount of memory used by her thread arbitrarily. Thus, it removes
the bound on the amount of system resources used by a client, so it
presents a security risk (DoS attack).
Fix: it is correct to increase the value of @@session.max_allowed_packet
while executing SHOW BINLOG EVENTS (see BUG 30435). However, the
increase should only be temporary. Thus, the fix is to restore the value
when SHOW BINLOG EVENTS ends.
The value of @@session.max_allowed_packet is also increased in
mysql_binlog_send (i.e., the binlog dump thread). It is not clear if this
can cause any trouble, since normally the client that issues
COM_BINLOG_DUMP will not issue any other commands that would be affected
by the increased value of @@session.max_allowed_packet. However, we
restore the value just in case.
mysql-test/suite/rpl/r/rpl_packet.result:
update result file
mysql-test/suite/rpl/t/rpl_packet.test:
Add test that verifies that @@session.max_allowed_packet does not change
when issuing SHOW BINLOG EVENTS.
Make previous sub-test clean up.
Add comments listing the bugs in this test case.
sql/sql_repl.cc:
Restore the old value of thd->variables.max_allowed_packet at the
end of mysql_binlog_send and mysql_show_binlog_events.
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Problem: The functions my_like_range_xxx() returned
badly formed maximum strings for Asian character sets,
which made problems for storage engines.
Fix:
- Removed a number my_like_range_xxx() implementations,
which were in fact dumplicate code pieces.
- Using generic my_like_range_mb() instead.
- Setting max_sort_char member properly for Asian character sets
- Adding unittest/strings/strings-t.c,
to test that my_like_range_xxx() return well-formed
min and max strings.
Notes:
- No additional tests in mysql/t/ available.
Old tests cover the affected code well enough.
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SHOW DATABASES LIKE ... was not converting to lowercase on comparison as the
documentation is suggesting.
Fixed it to behave similarly to SHOW TABLES LIKE ... and updated the failing
on MacOSX lowercase_table2 test case.
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find_file() to a warning unless they happen during a SHOW command.
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compiler problem
GCC-style inline assembly is not supported by the Sun Studio
compilers prior to version 12.
Added a check for the Sun Studio version to avoid using
_FPU_GETCW() / _FPU_SETCW() when inline assembly is
unsupported. This can lead to some differences in floating
point calculations on Solaris 8/x86 which, however, is not worth
bothering with Sun-style assembly .il templates.
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Fix warnings flagged by the new warning option -Wunused-but-set-variable
that was added to GCC 4.6 and that is enabled by -Wunused and -Wall. The
option causes a warning whenever a local variable is assigned to but is
later unused. It also warns about meaningless pointer dereferences.
client/mysql.cc:
Meaningless pointer dereferences.
client/mysql_upgrade.c:
Check whether reading from the file succeeded.
extra/comp_err.c:
Unused.
extra/yassl/src/yassl_imp.cpp:
Skip instead of reading data that is discarded.
include/my_pthread.h:
Variable is only used in debug builds.
include/mysys_err.h:
Add new error messages.
mysys/errors.c:
Add new error message for permission related functions.
mysys/mf_iocache.c:
Variable is only checked under THREAD.
mysys/my_copy.c:
Raise a error if chmod or chown fails.
mysys/my_redel.c:
Raise a error if chmod or chown fails.
regex/engine.c:
Use a equivalent variable for the assert.
server-tools/instance-manager/instance_options.cc:
Unused.
sql/field.cc:
Unused.
sql/item.cc:
Unused.
sql/log.cc:
Do not ignore the return value of freopen: only set buffer if
reopening succeeds.
Adjust doxygen comment to the right function.
Pass message lenght to log function.
sql/mysqld.cc:
Do not ignore the return value of freopen: only set buffer if
reopening succeeds.
sql/partition_info.cc:
Unused.
sql/slave.cc:
No need to set pointer to the address of '\0'.
sql/spatial.cc:
Unused. Left for historical purposes.
sql/sql_acl.cc:
Unused.
sql/sql_base.cc:
Pointers are always set to the same variables.
sql/sql_parse.cc:
End statement if reading fails.
Store the buffer after it has actually been updated.
sql/sql_repl.cc:
No need to set pointer to the address of '\0'.
sql/sql_show.cc:
Put variable under the same ifdef block.
sql/udf_example.c:
Set null pointer flag appropriately.
storage/csv/ha_tina.cc:
Meaningless dereferences.
storage/example/ha_example.cc:
Return the error since it's available.
storage/myisam/mi_locking.c:
Remove unused and dead code.
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due to GCC preprocessor change
The problem is that newer GCC versions treats missing headers
as fatal errors. The solution is to use a guard macro to prevent
the inclusion of system headers when checking the ABI with the
C Preprocessor.
Reference: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15638
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44836
Makefile.am:
Define guard macro.
configure.in:
Remove workaround.
include/mysql.h:
Guard the header inclusion.
include/mysql.h.pp:
Header is not included anymore.
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table with active trx
Essentially, the problem is that InnoDB does a implicit commit
when a cursor (table handler) is unlocked/closed, creating
a dissonance between the transaction state within the server
layer and the storage engine layer. Theoretically, a statement
transaction can encompass several table instances in a similar
manner to a multiple statement transaction, hence it does not
make sense to limit a statement transaction to the lifetime of
the table instances (cursors) used within it.
Since this particular instance of the problem is only triggerable
on 5.1 and is masked on 5.5 due 2PC being skipped (assertion is in
the prepare phase of a 2PC), the solution (which is less risky) is
to explicitly end the transaction before the cached table is unlock
on rename table.
The patch is to be null merged into trunk.
mysql-test/include/commit.inc:
Fix counters, the binlog engine does not get involved anymore.
mysql-test/suite/innodb_plugin/r/innodb_bug54453.result:
Add test case result for Bug#54453
mysql-test/suite/innodb_plugin/t/innodb_bug54453.test:
Add test case for Bug#54453
sql/sql_table.cc:
End transaction as otherwise InnoDB will end it behind our backs.
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This assert checks that the server does not try to send OK to the
client if there has been some error during processing. This is done
to make sure that the error is in fact sent to the client.
The problem was that view errors during processing of WHERE conditions
in UPDATE statements where not detected by the update code. It therefore
tried to send OK to the client, triggering the assert.
The bug was only noticeable in debug builds.
This patch fixes the problem by making sure that the update code
checks for errors during condition processing and acts accordingly.
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Bug#47139: Test "merge" crashes in "embedded" run
Backport patch for Bug#47139
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of the "embedded" server
Problem: mysqltest_embedded failed to load ha_innodb_plugin library
on some platforms (due to some unresolved references).
Fix: on FreeBSD use -export-dynamic flag building mysqltest_embedded.
That allows to use its global symbols to resolve references in the
dynamically loaded plugin library.
libmysqld/examples/Makefile.am:
Fix for bug #50667: The InnoDB plugin prevents initialization
of the "embedded" server
- use -export-dynamic (on FreeBSD/DragonFly) building
mysqltest_embedded to allow using its global symbols
to resolve references in the dynamically loaded plugin libraries.
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should be 20
Fixed the numeric precision of the unsigned BIGINT column to
be 20 instead of 19.
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Calculating the estimated number of records for a range scan
may take a significant time, and it was impossible for a user
to interrupt that process by killing the connection or the
query.
Fixed by checking the thread's 'killed' status in
check_quick_keys() and interrupting the calculation process if
it is set to a non-zero value.
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(without the unrelated whitespace changes):
------------------------------------------------------------------------
r7009 | jyang | 2010-04-29 20:44:56 +0300 (Thu, 29 Apr 2010) | 6 lines
branches/5.0: Port fix for bug #49238 (Creating/Dropping a temporary
table while at 1023 transactions will cause assert) from 5.1 to
branches/5.1. Separate action for return value DB_TOO_MANY_CONCURRENT_TRXS
from that of DB_MUST_GET_MORE_FILE_SPACE in row_drop_table_for_mysql().
------------------------------------------------------------------------
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strict aliasing violations.
Post-merge fix: include my_compiler.h before my_attribute.h
as the latter will undef __attribute__ if the compiler is not
GCC. Based on the compiler version, in my_compiler.h we know
for sure whether the aligned attribute is supported. Furthermore,
undefining attribute might cause bugs if some system header
uses it.
include/my_compiler.h:
Drop aligned attribute support from Sun Studio C++ compiler
as its not clear exactly which version of it supports the
attribute.
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strict aliasing violations.
Another rather noisy violation of strict aliasing rules
is the spatial code which makes use of stack-based memory
(of type Geometry_buffer) to provide placement for Geometry
objects. Although a placement new is allowed to dynamically
change the type of a object, the object returned by the
new placement was being ignored and the original stack-based
object was being casted to the new type, thus violating strict
aliasing rules.
The solution is to reorganize the code so that the object
returned by the new placement is used instead of casting the
original object. Also, to ensure that the stack-based object
is properly aligned with respect to the objects it provides
placement for, a set of compiler-dependent macros and types
are introduced so that the alignment of objects can be inquired
and specified.
include/Makefile.am:
Add new header.
include/my_compiler.h:
Add new header.
include/my_global.h:
Remove now-unnecessary macros.
sql/spatial.cc:
Make object creation functions return the object whose type
was dynamically changed by the new placement.
Move static method from the header in order to avoid having
to access a forward declaration.
sql/spatial.h:
Object creation callbacks now take a array of chars as the
storage area.
Move create_by_typeid to a source file as to not access the
forward declaration of Geometry_buffer.
Ensure that Geometry_buffer is properly aligned.
sql/sql_show.cc:
Use newly added aligned storage helper.
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Backport fixes from ndb: Rework the constructors of some static
object's to not call dbug functions since the constructors will
be called before main, and consequently, before the dbug library
is initialized.
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and reverse() function
3 problems fixed :
1. The reported problem : caused by incorrect parsing of
the file as ucs data resulting in wrong length of the parsed
string. Fixed by truncating the invalid trailing bytes
(non-complete multibyte characters) when reading from the file
2. LOAD DATA when reading from a proper UCS2 file wasn't
recognizing the new line characters. Fixed by first looking
if a byte is a new line (or any other special) character before
reading it as a part of a multibyte character.
3. When using user variables to hold the column data in LOAD
DATA the character set of the user variable was set incorrectly
to the database charset. Fixed by setting it to the charset
specified by LOAD DATA (if any).
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bytes_received/bytes_sent are ulonglong so they cannot be handled by the
ulong handling code in add_to_status/add_diff_to_status().
Fixed by adding code to handle these two variables in
add_to_status()/add_diff_to_status() and making sure they are not a subject
to the ulong handling code.
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The removal of non-local root users is overzealous in
mysql_secure_installation. (Bug #54004)
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Added some code to try to find the mysql command line in the most
common places and stop if it's not there.
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In bug-28430 HA_PRIMARY_KEY_REQUIRED_FOR_POSITION
was disabled in the partitioning engine in the first patch,
That bug was later fixed a second time, but that flag
was not removed.
No need to disable this flag, as it leads to bad
choise in row replication.
sql/ha_partition.h:
Not disabling HA_PRIMARY_KEY_REQUIRED_FOR_POSITION flag.
Updated comment (has nothing to do with hidden key.
sql/handler.h:
Updated comments to about HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
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partitions
The handler function for reading one row from a specific index
was not optimized in the partitioning handler since it
used the default implementation.
No test case since it is performance only, verified by hand.
sql/ha_partition.cc:
Implemented a optimized version of index_read_idx_map
for the case when find flag == HA_READ_KEY_EXACT,
which is the common case.
sql/ha_partition.h:
Declared ha_partition::index_read_idx_map
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of autoconf and is not strictly needed for now.
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Although the C standard mandates that sprintf return the number
of bytes written, some very ancient systems (i.e. SunOS 4)
returned a pointer to the buffer instead. Since these systems
are not supported anymore and are hopefully long dead by now,
simply remove the portability wrapper that dealt with this
discrepancy. The autoconf check was causing trouble with GCC.
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Introduce a MySQL maintainer/developer mode that enables
a set of warning options for the C/C++ compiler. This mode
is intended to help improve the overall quality of the code.
The warning options are:
C_WARNINGS="-Wall -Wextra -Wunused -Wwrite-strings -Werror"
CXX_WARNINGS="$C_WARNINGS -Wno-unused-parameter"
Since -Wall is essentially a moving target, autoconf checks
are not run with warning options enabled, in particualr -Werror.
This decision might be revisited in the future. The patch also
fixes a mistake in the makefiles, where automake CXXFLAGS would
be set to CFLAGS.
config/ac-macros/maintainer.m4:
Add a set of default compiler flags used when in maintainer mode.
configure.in:
Hook into the maintainer mode. Disabled by default.
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The problem there is that HAVING condition evaluates const
parts of condition despite the condition has references
on aggregate functions. Table t1 became const tables
after make_join_statistics and table1.pk = 1, HAVING is
transformed into MAX(1) < 7 and taken away from HAVING.
The fix is to skip evaluation of HAVING conts parts if
HAVING condition has references on aggregate functions.
mysql-test/r/having.result:
test case
mysql-test/t/having.test:
test case
sql/sql_select.cc:
skip evaluation of HAVING conts parts if
HAVING condition has references on aggregate functions.
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Fix the memory leak
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Since the original fix for this bug lowercases the search pattern it's not a
good idea to copy the search pattern to the output instead of the real table
name found (since, depending on the case mode these two names may differ in
case).
Fixed the infrmation_schema.test failure by making sure the actual table
name of an inoformation schema table is passed instead of the lookup pattern
even when the pattern doesn't contain wildcards.
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