The problem is that the lexer could inadvertently skip over the
end of a query being parsed if it encountered a malformed multibyte
character. A specially crated query string could cause the lexer
to jump up to six bytes past the end of the query buffer. Another
problem was that the laxer could use unfiltered user input as
a signed array index for the parser maps (having upper and lower
bounds 0 and 256 respectively).

The solution is to ensure that the lexer only skips over well-formed
multibyte characters and that the index value of the parser maps
is always a unsigned value.

- Remove offensive quotes.

Install procedure does not copy *.inc files located under the mysql-test/t directory.
Therefore, this patch moves the rpl_trigger.inc to the mysql-test/include directory.

The test case fails sporadically on Windows while trying to overwrite an unused
binary log. The problem stems from the fact that MySQL on Windows does not
immediately unlock/release a file while the process that opened and closed it is
still running. In BUG 38603, this issue was circumvented by stopping the MySQL
process, copying the file and then restarting the MySQL process. 

Unfortunately, such facilities are not available in the 5.0.  Other approaches
such as stopping the slave and issuing change master do not work because the relay
log file and index are not closed when a slave is stopped. So to fix the problem,
we simply don't run on windows the part of the test that was failing.

- Define and pass compile time path variables as pre-processor definitions to 
  mimic the makefile build.
- Set new CMake version and policy requirements explicitly.
- Changed DATADIR to MYSQL_DATADIR to avoid conflicting definition in 
  Platform SDK header ObjIdl.h which also defines DATADIR.

correctly if the compiler optimizes too clever.

This has happaned on HP-UX 11.23 (IA64) at optimization
level "+O2", causing bug#42213:
   Check for "stack overrun" doesn't work, server crashes

Fix it by adding a pragma that prevents this optimization.
As a result, it should be safe to use "+O2" on this platform
(unless there is some other, optimizer-related, bug which
is just currently masked because we use resudec optimization).

            compression 
 
Since uint3korr() may read 4 bytes depending on build flags and 
platform, allocate 1 extra "safety" byte in the network buffer 
for cases when uint3korr() in my_real_read() is called to read
last 3 bytes in the buffer. 
 
It is practically hard to construct a reliable and reasonably 
small test case for this bug as that would require constructing 
input stream such that a certain sequence of bytes in a 
compressed packet happens to be the last 3 bytes of the network 
buffer. 

The maximum value of the max_join_size variable is set by converting
a signed type (long int) with negative value (-1) to a wider unsigned
type (unsigned long long), which yields the largest possible value of
the wider unsigned type -- as per the language conversion rules. But,
depending on build options, the type of the max_join_size might be a
shorter type (ha_rows - unsigned long) which causes the warning to be
thrown once the large value is truncated to fit.

The solution is to ensure that the maximum value of the variable is
always set to the maximum value of integer type of max_join_size.

Furthermore, it would be interesting to always have a fixed type for
this variable, but this would incur in a change of behavior which is
not acceptable for a GA version. See Bug#35346.

Post-merge fix: test case could fail due to a conversion of the
max_join_size value to a integer. Fixed by preserving the value
as a string for comparison purposes.

            procedures causes crashes!

The problem of that bugreport was mostly fixed by the
patch for bug 38691.
However, attached test case focused on another crash or
valgrind warning problem: SHOW PROCESSLIST query accesses
freed memory of SP instruction that run in a parallel
connection.

Changes of thd->query/thd->query_length in dangerous
places have been guarded with the per-thread
LOCK_thd_data mutex (the THD::LOCK_delete mutex has been
renamed to THD::LOCK_thd_data).

In create_myisam_from_heap() mark all errors as fatal except 
HA_ERR_RECORD_FILE_FULL for a HEAP table.

Not doing so could lead to problems, e.g. in a case when a
temporary MyISAM table gets overrun due to its MAX_ROWS limit
while executing INSERT/REPLACE IGNORE ... SELECT. 
The SELECT execution was aborted, but the error was 
converted to a warning due to IGNORE clause, so neither 'ok' 
nor 'error' packet could be sent back to the client. This 
condition led to hanging client when using 5.0 server, or 
assertion failure in 5.1.

not logged
        
Errors encountered during initialization of the SSL subsystem
are printed to stderr, rather than to the error log.
        
This patch adds a parameter to several SSL init functions to
report the error (if any) out to the caller. The function
init_ssl() in mysqld.cc is moved after the initialization of
the log subsystem, so that any error messages can be logged to
the error log. Printing of messages to stderr has been 
retained to get diagnostic output in a client context.

> ------------------------------------------------------------
> revno: 2792
> revision-id: sergey.glukhov@sun.com-20090703083500-jq8vhw0tqr37j7te
> parent: bernt.johnsen@sun.com-20090703083610-o7l4s8syz05rc4w0
> committer: Sergey Glukhov <Sergey.Glukhov@sun.com>
> branch nick: mysql-5.0-bugteam
> timestamp: Fri 2009-07-03 13:35:00 +0500
> message:
>   Bug#45806 crash when replacing into a view with a join!
>   The crash happend because for views which are joins
>   we have table_list->table == 0 and 
>   table_list->table->'any method' call leads to crash.
>   The fix is to perform table_list->table->file->extra()
>   method for all tables belonging to view.

> ------------------------------------------------------------
> revno: 2772
> revision-id: joro@sun.com-20090615133815-eb007p5793in33p5
> parent: joro@sun.com-20090612140659-4hj1tta9p8wvcw4k
> committer: Georgi Kodinov <joro@sun.com>
> branch nick: B44810-5.0-bugteam
> timestamp: Mon 2009-06-15 16:38:15 +0300
> message:
>   Bug #44810: index merge and order by with low sort_buffer_size
>   crashes server!
>   
>   The problem affects the scenario when index merge is followed by a filesort
>   and the sort buffer is not big enough for all the sort keys.
>   In this case the filesort function will read the data to the end through the 
>   index merge quick access method (and thus closing the cursor etc), 
>   but will leave the pointer to the quick select method in place.
>   It will then create a temporary file to hold the results of the filesort and
>   will add it as a sort output file (in sort.io_cache).
>   Note that filesort will copy the original 'sort' structure in an automatic
>   variable and restore it after it's done.
>   As a result at exiting filesort() we have a sort.io_cache filled in and 
>   nothing else (as a result of close of the cursors at end of reading data 
>   through index merge).
>   Now create_sort_index() will note that there is a select and will clean it up
>   (as it's been used already by filesort() reading the data in). While doing that
>   a special case in the index merge destructor will clean up the sort.io_cache,
>   assuming it's an output of the index merge method and is not needed anymore.
>   As a result the code that tries to read the data back from the filesort output 
>   will get no data in both memory and disk and will crash.
>         
>   Fixed similarly to how filesort() does it : by copying the sort.io_cache structure
>   to a local variable, removing the pointer to the io_cache (so that it's not freed 
>   by QUICK_INDEX_MERGE_SELECT::~QUICK_INDEX_MERGE_SELECT) and restoring the original 
>   structure (together with the valid pointer) after the cleanup is done.
>   This is a safe thing to do because all the structures are already cleaned up by
>   hitting the end of the index merge's read method (QUICK_INDEX_MERGE_SELECT::get_next()) 
>   and the cleanup code being written in a way that tolerates repeating cleanups.

> ------------------------------------------------------------
> revno: 2763
> revision-id: sergey.glukhov@sun.com-20090602063813-33mh88cz5vpa2jqe
> parent: alexey.kopytov@sun.com-20090601124224-zgt3yov9wou590e9
> committer: Sergey Glukhov <Sergey.Glukhov@sun.com>
> branch nick: mysql-5.0-bugteam
> timestamp: Tue 2009-06-02 11:38:13 +0500
> message:
>   Bug#45152 crash with round() function on longtext column in a derived table
>   The crash happens due to wrong max_length value which is set on
>   Item_func_round::fix_length_and_dec() stage. The value is set to
>   args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
>   The fix is to set max_length using float_length() function.

> ------------------------------------------------------------
> revno: 2733
> revision-id: gshchepa@mysql.com-20090430192037-9p1etcynkglte2j3
> parent: aelkin@mysql.com-20090430143246-zfqaz0t7uoluzdz2
> committer: Gleb Shchepa <gshchepa@mysql.com>
> branch nick: mysql-5.0-bugteam
> timestamp: Fri 2009-05-01 00:20:37 +0500
> message:
>   Bug #37362: Crash in do_field_eq
>   
>   EXPLAIN EXTENDED of nested query containing a error:
>   
>      1054 Unknown column '...' in 'field list'
>   
>   may cause a server crash.
>   
>   
>   Parse error like described above forces a call to
>   JOIN::destroy() on malformed subquery.
>   That JOIN::destroy function closes and frees temporary
>   tables. However, temporary fields of these tables
>   may be listed in st_select_lex::group_list of outer
>   query, and that st_select_lex may not cleanup them
>   properly. So, after the JOIN::destroy call that
>   st_select_lex::group_list may have Item_field
>   objects with dangling pointers to freed temporary
>   table Field objects. That caused a crash.

into 5.0-build.

When during the optimization an item is moved to the upper select
the item's context left unchanged. This caused wrong result in the 
PS/SP mode.
The Item_ident::remove_dependence_processor now sets the context
of the select to which the item is moved to.

                    it returns misleading 'table is full'

Innodb returns a misleading error message "table is full" 
when the number of active concurrent transactions is greater
than 1024.

Fixed by adding errorcode "ER_TOO_MANY_CONCURRENT_TRXS" to the
error codes. Innodb should return HA_TOO_MANY_CONCURRENT_TRXS
to mysql which is then mapped to ER_TOO_MANY_CONCURRENT_TRXS


Note: testcase is not written as this was reproducible only by
      changing innodb code.

In a subselect all fields from outer selects are marked as dependent on
selects they are belong to. In some cases optimizer substitutes it for an
equivalent expression. For example "a_field IN (SELECT outer_field)" is
substituted with "a_field = outer_field". As we moved the outer_field to the
upper select it's not really outer anymore. But it was left marked as outer.
If exists an index over a_field optimizer choose wrong execution plan and thus
return wrong result.

Now the Item_in_subselect::single_value_transformer function removes dependent
marking from fields when a subselect is optimized away.