The Item_func_rollup_const class is used for wrapping constants to avoid
wrong result for ROLLUP queries with DISTINCT and a constant in the select
list. This class is also used to wrap up a NULL constant but its null_value
wasn't set accordingly. This led to a server crash.
Now the null_value of an object of the Item_func_rollup_const class is set
by its fix_length_and_dec member function.
mysql-test/t/olap.test:
Added a test case for the bug#31095: Unexpected NULL constant caused server crash.
mysql-test/r/olap.result:
Added a test case for the bug#31095: Unexpected NULL constant caused server crash.
sql/item_func.h:
Bug#31095: Unexpected NULL constant caused server crash.
Now the null_value of an object of the Item_func_rollup_const class is set
by its fix_length_and_dec member function.
mysqldump adds the "-- Dump completed on YYYY-MM-DD hh:mm:ss" string
to the end of output if the --comments switch is on.
The only way to suppress this line is to use --skip-comments/--compact
switch.
New switch has been added to the mysqldump client command line:
--dump-date.
For the compatibility with previous releases, by default the --dump-date
is on.
The --dump-date switch forces mysqldump to add date to the
"-- Dump completed on ..." string at the end of output.
The --skip-dump-date switch supresses the output of date string
and uses short form of that commentary: "-- Dump completed".
--skip-comments or --compact switches disable the whole commentary
as usual.
client/client_priv.h:
Fixed bug #31077.
New OPT_DUMP_DATE option has been added to implement
the mysqldump client --dump-date switch.
client/mysqldump.c:
Fixed bug #31077.
The opt_dump_date variable has been added to imlements
the mysqldump cliemt --dump-date switch.
By default this switch is on (for compatibility with previous
releases).
The --dump-date switch forces mysqldump to add date to the
"-- Dump completed on ..." string at the end of output.
The --skip-dump-date switch supresses the output of date string
and uses short form of that commentary: "-- Dump completed".
--skip-comments or --compact switches disable the whole commentary
as usual.
mysql-test/t/mysqldump.test:
Added test case for bug #31077.
mysql-test/r/mysqldump.result:
Added test case for bug #31077.
Adding support for correct handling of pthread_mutex_trylock() on Win32
systems as well as when using the safe mutexes.
include/my_pthread.h:
Adding win_pthread_mutex_trylock() function as wrapper function for
Windows implementation of pthread_mutex_trylock().
Adding flag to safe_mutex_lock() that is shall not abort if the mutex
is already locked and instead return EBUSY since this is the POSIX
behaviour.
mysys/my_winthread.c:
Added Win32 wrappper function to handle pthread_mutex_trylock().
mysys/thr_mutex.c:
Added parameter 'try_lock' to safe_mutex_lock() to allow it to do double-
duty as a pthread_mutex_trylock() in addition to working as
pthread_mutex_lock().
The code needs to return EBUSY instead of throwing an error in the event
that the mutex is re-locked (we do not have recursive mutexes), but it
also requires some special handling to avoid race conditions when
calling the real pthread_mutex_{lock,trylock}().
Problem: some valid euc-kr characters were rejected because
condition checking multi-byte tail didn't allow
multi-byte characters having the second byte in the ranges
[0x41..0x5A] and [0x61..0x7A].
Fix: allow these byte ranges for mb tails
mysql-test/r/ctype_euckr.result:
Adding tests
mysql-test/t/ctype_euckr.test:
Adding tests
strings/ctype-euc_kr.c:
Fixing wrong tail character pattern
Corrected test case for the bug#29908.
mysql-test/t/view_grant.test:
Corrected test case for the bug#29908.
mysql-test/r/view_grant.result:
Corrected test case for the bug#29908.
The change_to_use_tmp_fields function leaves the orig_table member of an
expression's tmp table field filled for the new Item_field being created.
Later orig_table is used by the Field::make_field function to provide some
info about original table and field name to a user. This is ok for a field
but for an expression it should be empty.
The change_to_use_tmp_fields function now resets orig_table member of
an expression's tmp table field to prevent providing a wrong info to a user.
The Field::make_field function now resets the table_name and the org_col_name
variables when the orig_table is set to 0.
sql/field.cc:
Bug#27990: Wrong info in MYSQL_FIELD struct members when a tmp table was used.
The Field::make_field function now resets the table_name and the org_col_name
variables when the orig_table is set to 0.
sql/sql_select.cc:
Bug#27990: Wrong info in MYSQL_FIELD struct members when a tmp table was used.
The change_to_use_tmp_fields function now resets orig_table member of
an expression's tmp table field to prevent providing a wrong info to a user.
tests/mysql_client_test.c:
The test case for the bug#21635 is altered to test behavior on both const and
non-const tables.
The NAME_CONST function is required to work correctly with constants only.
When executed with functions that return types other than those returned by
Item::field_type (string, int, decimal, or real), the result gets cast to
one of those types. This cannot happen for constants.
Fixed by only allowing constants as arguments to NAME_CONST.
mysql-test/r/func_misc.result:
Bug#30832: Test result
mysql-test/t/func_misc.test:
Bug#30832: Test case
sql/item.h:
Bug#30832: The fix
When calculating the result length of an integer DIV function
the number of decimals was used without checking the result type
first. Thus an uninitialized number of decimals was used for some
types. This caused an excessive amount of memory to be allocated
for the field's buffer and crashed the server.
Fixed by using the number of decimals only for data types that
can have decimals and thus have valid decimals number.
mysql-test/r/func_math.result:
Bug #30587: test case
mysql-test/t/func_math.test:
Bug #30587: test case
sql/item_func.cc:
Bug #30587: Don't use decimals on a type that doesn't have them.
When expanding a * in a USING/NATURAL join the check for table access
for both tables in the join was done using the grant information of the
first one.
Fixed by getting the grant information for the current table while
iterating through the columns of the join.
mysql-test/r/grant2.result:
Bug #30468: test case
mysql-test/t/grant2.test:
Bug #30468: test case
sql/sql_acl.cc:
Bug #30468: correctly check column grants
sql/sql_acl.h:
Bug #30468: correctly check column grants
sql/sql_base.cc:
Bug #30468: correctly check column grants
sql/sql_insert.cc:
Bug #30468: correctly check column grants
active_mi has been reset (shutdown) at the time of quering with
SHOW SLAVE STATUS so that
at handling of SHOW an attempt to read its members segfaults.
Fixed with checking the value of active_mi before to call show_master_info()
Merely send_ok() is invoked when active_mi does not exist.
A test can not be easiely written.
Notice, there are more analogical cases in the code which require a similar
treatment (to be reported as a bug separately).
sql/sql_parse.cc:
Ignore reporting and send only OK if master info struct has been destoyed.
As this must be at shutdown merely a warning is sent to the client.
- Use a local uservariable to avoid @@hostname in binlog
scripts/mysql_system_tables_data.sql:
Load @@hostname into a local user variable to avoid
writing @@hostname to the binary log that potentially
would be replicated to a slave server that not yet was upgraded
to have @@hostname.
