mysql-test/r/func_math.result:
New test case.
mysql-test/t/func_math.test:
New test case.
sql/item_func.cc:
Check for null before converting value to my_decimal.
mysql-test/r/mysqld--help-notwin.result:
consequence of introducing opt_autocommit and its default
mysql-test/suite/sys_vars/r/autocommit_func4.result:
Before this fix, this test would have shown @@global.autocommit == 0
in spite of --autocommit=on.
mysql-test/suite/sys_vars/r/autocommit_func5.result:
result unchanged by the fix
sql/mysqld.cc:
atoi(argument) was reliable for =0|1 parameters. Now that boolean options
must support =on/off/true/false, atoi(argument) is wrong (being always 0
for those strings). Instead, let the internal logic of my_getopt
(in particular get_bool_argument()) set a boolean opt_autocommit
properly, and use that to set global_system_variables.option_bits.
Fix: copy my_decimal by value, to avoid dangling pointers.
mysql-test/r/func_math.result:
New test case.
mysql-test/t/func_math.test:
New test case.
sql/item_cmpfunc.cc:
No need to call fix_buffer_pointer() anymore.
sql/item_func.cc:
Copy my_decimal by value, to avoid dangling pointers.
sql/my_decimal.h:
Implement proper copy constructor and assignment operator for my_decimal.
sql/sql_analyse.cc:
No need to call fix_buffer_pointer() anymore.
strings/decimal.c:
Remove #line directive: it messes up TAGS and it confuses gdb when debugging.
Fixed incorrect checks in join_read_const_table() for when to
accept a non-existing, or empty const-row as a part of the const'ified
set of tables.
Intention of this test is to only accept NULL-rows if this table is outer joined
into the resultset. (In case of an inner-join we can conclude at this point that
resultset will be empty, end we want to return 'error' to signal this.)
Initially 'maybe_null' is set to the same value as 'outer_join' in
setup_table_map(), mysql_priv.h ~line 2424. Later simplify_joins() will
attemp to replace outer joins by inner join whenever possible. This
will cause 'outer_join' to be updated. However, 'maybe_null' is *not* updated
to reflect this rewrite as this field is used to currectly set the 'nullability'
property for the columns in the resultset.
We should therefore change join_read_const_table() to check the 'outer_join'
property instead of 'maybe_null', as this correctly reflect the nullability of
the *execution plan* (not *resultset*).
An incorrect 'table_map' containing both the table itself,
and possible any outer-refs if this was the last table in
the subquery, was presented to make_cond_for_table().
As a pushed condition is only able to refer column from the table
the condition is pushed to, nothing else than columns from the
table itself (tab->table->map) may be refered in the pushed condition
constructed by 'push_cond= make_cond_for_table()'.
Also fix a minor 'copy and paste' bug in a comment
inside make_cond_for_table().
No testcase is possible on mainbranch as the NDB engine is not available (yet)
on mysql >= 5.5
Item_equal::val_int() checked for NULL-values by checking Item::null_value
*before* the respective ::store_value() and ::cmp(Item*) metods where called.
As Item::null_value is set by these metods, the value of 'null_value'
is not valid until *after* ::store_value() or ::cmp() has
been called for the Item object.
Fix is to swap order of ::store_value()/::cmp() and checking of Item::null_value.
This pattern is widely used other places inside item_cmpfunc.cc .
other crashes
Some string manipulating SQL functions use a shared string object intended to
contain an immutable empty string. This object was used by the SQL function
SUBSTRING_INDEX() to return an empty string when one argument was of the wrong
datatype. If the string object was then modified by the sql function INSERT(),
undefined behavior ensued.
Fixed by instead modifying the string object representing the function's
result value whenever string manipulating SQL functions return an empty
string.
Relevant code has also been documented.
INVOKER-security view access check wrong".
When privilege checks were done for tables used from an
INVOKER-security view which in its turn was used from
a DEFINER-security view connection's active security
context was incorrectly used instead of security context
with privileges of the second view's creator.
This meant that users which had enough rights to access
the DEFINER-security view and as result were supposed to
be able successfully access it were unable to do so in
cases when they didn't have privileges on underlying tables
of the INVOKER-security view.
This problem was caused by the fact that for INVOKER-security
views TABLE_LIST::security_ctx member for underlying tables
were set to 0 even in cases when particular view was used from
another DEFINER-security view. This meant that when checks of
privileges on these underlying tables was done in
setup_tables_and_check_access() active connection security
context was used instead of context corresponding to the
creator of caller view.
This fix addresses the problem by ensuring that underlying
tables of an INVOKER-security view inherit security context
from the view and thus correct security context is used for
privilege checks on underlying tables in cases when such view
is used from another view with DEFINER-security.
mysql-test/r/view_grant.result:
Added coverage for various combinations of DEFINER and
INVOKER-security views, including test for bug #58499
"DEFINER-security view selecting from INVOKER-security
view access check wrong".
mysql-test/t/view_grant.test:
Added coverage for various combinations of DEFINER and
INVOKER-security views, including test for bug #58499
"DEFINER-security view selecting from INVOKER-security
view access check wrong".
sql/sql_view.cc:
When opening a non-suid view ensure that its underlying
tables will get the same security context as use for
checking privileges on the view, i.e. security context
of view invoker. This context can be different from the
security context which is currently active for connection
in cases when this non-suid view is used from a view with
suid security. Inheriting security context in such situation
allows correctly apply privileges of creator of suid view
in checks for tables of non-suid view (since in this
situation creator/definer of suid view serves as invoker
for non-suid view).
Item_func_spatial_collection::fix_length_and_dec didn't call parent's method, so
the maybe_null was set to '0' after it. But in this case the result was
just NULL, that caused wrong behaviour.
per-file comments:
mysql-test/r/gis.result
Bug #57321 crashes and valgrind errors from spatial types
test result updated.
mysql-test/t/gis.test
Bug #57321 crashes and valgrind errors from spatial types
test case added.
sql/item_geofunc.h
Bug #57321 crashes and valgrind errors from spatial types
Item_func_geometry::fix_length_and_dec() called in
Item_func_spatial_collection::fix_length_and_dec().
TIMESTAMP.
Item_cache::get_cache wasn't treating TIMESTAMP as a DATETIME value thus
returning string cache for items with TIMESTAMP type. This led to incorrect
TIMESTAMP -> INT conversion and to a wrong query result.
Fixed by using Item::is_datetime function to check for DATETIME type group.
mysql-test/r/type_timestamp.result:
Added a test case for the bug#59330.
mysql-test/t/type_timestamp.test:
Added a test case for the bug#59330.
sql/item.cc:
Bug#59330: Incorrect result when comparing an aggregate function with
TIMESTAMP.
Item_cache::get_cache now uses is_datetime member function to detect DATETIME
type group.
If the ::single_value_transformer() find an existing HAVING condition it used
to do the transformation:
1) HAVING cond -> (HAVING Cond) AND (cond_guard (Item_ref_null_helper(...))
As the AND condition in 1) is Mc'Carty evaluated, the
right side of the AND cond should be executed only if the
original 'HAVING evaluated' to true.
However, as we failed to set 'top_level' for the tranformed HAVING condition,
'abort_on_null' was FALSE after transformation. An
UNKNOWN having condition will then not terminate evaluation of the
transformed having condition, and we incorrectly continued
into the Item_ref_null_helper() part.
tmptable needed
The function DEFAULT() works by modifying the the data buffer pointers (often
referred to as 'record' or 'table record') of its argument. This modification
is done during name resolution (fix_fields().) Unfortunately, the same
modification is done when creating a temporary table, because default values
need to propagate to the new table.
Fixed by skipping the pointer modification for fields that are arguments to
the DEFAULT function.
if max_allowed_packet >= 16M.
This bug was introduced by patch for bug#42503.
This patch restores behaviour that there was before patch
for bug#42503 was applied.
sql/net_serv.cc:
Restored original right condition.
to crash mysqld".
handler::pushed_cond was not always properly reset when table objects where
recycled via the table cache.
handler::pushed_cond is now set to NULL in handler::ha_reset(). This should
prevent pushed conditions from (incorrectly) re-apperaring in later queries.
and 'THREAD_SAFE_CLIENT'.
As of MySQL 5.5, we no longer support non-threaded
builds. This patch removes all references to the
obsolete THREAD and THREAD_SAFE_CLIENT preprocessor
symbols. These were used to distinguish between
threaded and non-threaded builds.
OPTIMIZE TABLE
OPTIMIZE TABLE for InnoDB tables is handled as recreate + analyze.
The triggered assert checked that an error had been reported if either
recreate or analyze failed. However the assert failed to take into
account that they could have failed because OPTIMIZE TABLE had been
victim of KILL QUERY, KILL CONNECTION or server shutdown.
This patch adjusts the assert to take this possibility into account.
The problem was only noticeable on debug versions of the server.
Test case added to innodb_mysql_sync.test.
and Order By
When having a UNION statement in a subquery, with no
referenced tables (or only a reference to the virtual
table 'dual'), the UNION did not allow an ORDER BY clause.
i.e:
SELECT(SELECT 1 AS a UNION
SELECT 0 AS a
ORDER BY a) AS b or
SELECT(SELECT 1 AS a FROM dual UNION
SELECT 0 as a
ORDER BY a) AS b
In addition, an ORDER BY / LIMIT clause was not accepted
in subqueries even for single SELECT statements with no
referenced tables (or with 'dual' as table reference)
i.e:
SELECT(SELECT 1 AS a ORDER BY a) AS b or
SELECT(SELECT 1 AS a FROM dual ORDER BY a) AS b
The fix was to allow an optional ORDER BY/LIMIT clause to
the grammar for these cases.
See also: Bug#57986
if embedded in a SELECT
An ORDER BY clause was bound to the incorrect
(sub-)statement when used in a UNION context.
In a query like:
SELECT * FROM a UNION SELECT * FROM b ORDER BY c
the result of SELECT * FROM b is sorted, and then
combined with a. The correct behaviour is that
the ORDER BY clause should be applied on the
final set. Similar behaviour was seen on LIMIT
clauses as well.
In a UNION statement, there will be a select_lex
object for each of the two selects, and a
select_lex_unit object that describes the UNION
itself. Similarly, the same behaviour was also
seen on derived tables.
The bug was caused by using a grammar rule for
ORDER BY and LIMIT that bound these elements
to thd->lex->current_select, which points to the
last of the two selects, instead of to the
fake_select_lex member of the master select_lex_unit
object.
sql/sql_yacc.yy:
Need to use (opt_)union_order_or_limit to
bind to the correct select_lex object.
Truncate the maximum result length (64-bit wide type) to fit into
the item maximum length (32-bit wide type). This is possible as
this specific branch is only used if the maximum result length
is less than 0x1000000 (MAX_BLOB_WIDTH), which fits comfortably
in a 32-bit wide type.
From a user perspective, the problem is that a FLUSH LOGS or SIGHUP
signal could end up associating the stdout and stderr to random
files. In the case of this bug report, the streams would end up
associated to InnoDB ibd files.
The freopen(3) function is not thread-safe on FreeBSD. What this
means is that if another thread calls open(2) during freopen()
is executing that another thread's fd returned by open(2) may get
re-associated with the file being passed to freopen(3). See FreeBSD
PR number 79887 for reference:
http://www.freebsd.org/cgi/query-pr.cgi?pr=79887
This problem is worked around by substituting a internal hook within
the FILE structure. This avoids the loss of atomicity by not having
the original fd closed before its duplicated.
Patch based on the original work by Vasil Dimov.
include/my_sys.h:
Export my_freopen.
mysys/my_fopen.c:
Add a my_freopen abstraction to workaround bugs in specific OSes.
Add a prototype for getosreldate() as older FreeBSD versions did
not define one.
sql/log.cc:
Move freopen abstraction code over to mysys.
The streams are now only reopened for writing.
mysqlbinlog only prints "use $database" statements to its output stream
when the active default database changes between events. This will cause
"No Database Selected" error when dropping and recreating that database.
To fix the problem, we clear print_event_info->db when printing an event
of CREATE/DROP/ALTER database statements, so that the Query_log_event
after such statements will be printed with the use 'db' anyway except
transaction keywords.
mysql-test/r/mysqlbinlog.result:
Test result for Bug#50914.
mysql-test/t/mysqlbinlog.test:
Added test to verify if the approach of the mysqlbinlog prints
"use $database" statements to its output stream will cause
"No Database Selected" error when dropping and recreating
that database.
sql/log_event.cc:
Updated code to clear print_event_info->db when printing an event
of CREATE/DROP/ALTER database statements, so that the Query_log_event
after such statements will be printed with the use 'db' anyway except
transaction keywords.
mysqlbinlog only prints "use $database" statements to its output stream
when the active default database changes between events. This will cause
"No Database Selected" error when dropping and recreating that database.
To fix the problem, we clear print_event_info->db when printing an event
of CREATE/DROP/ALTER database statements, so that the Query_log_event
after such statements will be printed with the use 'db' anyway except
transaction keywords.
mysql-test/r/mysqlbinlog.result:
Test result for Bug#50914.
mysql-test/t/mysqlbinlog.test:
Added test to verify if the approach of the mysqlbinlog prints
"use $database" statements to its output stream will cause
"No Database Selected" error when dropping and recreating
that database.
sql/log_event.cc:
Updated code to clear print_event_info->db when printing an event
of CREATE/DROP/ALTER database statements, so that the Query_log_event
after such statements will be printed with the use 'db' anyway except
transaction keywords.
- Removed files specific to compiling on OS/2
- Removed files specific to SCO Unix packaging
- Removed "libmysqld/copyright", text is included in documentation
- Removed LaTeX headers for NDB Doxygen documentation
- Removed obsolete NDB files
- Removed "mkisofs" binaries
- Removed the "cvs2cl.pl" script
- Changed a few GPL texts to use "program" instead of "library"
ASSERT happens due to improper calculation of the max_length
in Item_func_div object, if dividend has max_length == 0 then
Item_func_div::max_length is set to 0 under some circumstances.
The fix:
If decimals == NOT_FIXED_DEC then set
Item_func_div::max_length to max possible
DOUBLE length value.
mysql-test/r/func_math.result:
test case
mysql-test/t/func_math.test:
test case
sql/item_func.cc:
The fix:
If decimals == NOT_FIXED_DEC then set
Item_func_div::max_length to max possible
DOUBLE length value.
multiline inserts into partition
Bug#57071: EXTRACT(WEEK from date_col) cannot be
allowed as partitioning function
Renamed function according to reviewers comments.
sql/item.h:
better name of processor function
sql/item_func.h:
better name of processor function
sql/item_timefunc.h:
better name of processor function
sql/sql_partition.cc:
better name of processor function
Updated comment.
Bug#57071: EXTRACT(WEEK from date_col) cannot be allowed as partitioning function
There were functions allowed as partitioning functions
that implicit allowed cast. That could result in unacceptable
behaviour.
Solution was to check that the arguments of date and time functions
have allowed types (field and date/datetime/time depending on function).
mysql-test/r/partition.result:
Updated result
mysql-test/r/partition_error.result:
Updated result
mysql-test/suite/parts/inc/part_supported_sql_funcs_main.inc:
disabled test with not allowed arguments.
mysql-test/suite/parts/r/part_supported_sql_func_innodb.result:
Updated result
mysql-test/suite/parts/r/part_supported_sql_func_myisam.result:
Updated result
mysql-test/t/partition.test:
Fixed typo in bug number and removed non allowed function (bad argument)
mysql-test/t/partition_error.test:
Added tests to verify correct type of argument.
sql/item.h:
Renamed processor since it is no longer only for timezone
sql/item_func.h:
Added help functions for checking date/time/datetime arguments.
sql/item_timefunc.h:
Added processors for argument correctness
sql/sql_partition.cc:
renamed the processor for checking arguments.
