Problem: Temporary buffer which is used for quoting and escaping
  was initialized to character set utf8, and thus didn't allow
  to store data in other character sets.
  Fix: changing character set of the buffer to be able to
  store any arbitrary sequence of bytes.

            SHOW CREATE TABLE fails
Addition to the fix: report db name + table name instead of table path.
This solves embedded merge test failure.

into  mysql.com:/home/svoj/devel/mysql/BUG26976/mysql-5.0-engines

into  xiphis.org:/home/antony/work2/mysql-5.0-merge

into  xiphis.org:/home/antony/work2/mysql-5.0-engines.merge

into  xiphis.org:/home/antony/work2/mysql-4.1-engines.merge

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun05/41

            SHOW CREATE TABLE fails

Underlying table names, that merge engine fails to open were not
reported.

With this fix CHECK TABLE issued against merge table reports all
underlying table names that it fails to open. Other statements
are unaffected, that is underlying table names are not included
into error message.

This fix doesn't solve SHOW CREATE TABLE issue.

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun05/50

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun05/50

into  chilla.local:/home/mydev/mysql-5.0-axmrg

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun05/50

Original problem was fixed by Magnus (see BUG25807).

Currently only windows debug build causes assertion failure. This patch assures
that my_tell gets correct file descriptor on any platform by DBUG_ASSERT macro.

into  amd64.(none):/src/bug24400/my41-bug24400

into  amd64.(none):/src/bug24400/my50-bug24400

into  amd64.(none):/src/bug24400/my50-bug24400

into  dl145s.mysql.com:/dev/shm/mhansson/my50-bug27741

into  mysql.com:/home/ram/work/b28652/b28652.5.0

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug28728

into  moonbone.local:/mnt/gentoo64/work/test-5.0-opt-mysql

  Corrected test case result for the bug#28494.
item_func.h, item_func.cc:
  Corrected function names after fix for the bug#28494.

into  moonbone.local:/mnt/gentoo64/work/test-5.0-opt-mysql

  Extended test case for the bug#28494.

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug28728

into  macbook.gmz:/Users/kgeorge/mysql/work/B26162-5.0-opt

  
The value of "low-priority-updates" option and the LOW PRIORITY
prefix was taken into account at parse time.
This caused triggers (among others) to ignore this flag (if
supplied for the DML statement).
Moved reading of the LOW_PRIORITY flag at run time.
Fixed an incosistency when handling
SET GLOBAL LOW_PRIORITY_UPDATES : now it is in effect for
delayed INSERTs.
Tested by checking the effect of LOW_PRIORITY flag via a 
trigger.

into  amd64.(none):/src/bug24732/my50-bug24732

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug28728

into  moonbone.local:/mnt/gentoo64/work/test-5.0-opt-mysql

  Post fix for bug#28494.
  The Item_func_set_user_var::check method now silently doesn't use result_field
  if it isn't defined.

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug28728

into  moonbone.local:/mnt/gentoo64/work/test-5.0-opt-mysql

This is an additional fix.
Item::val_xxx methods are supposed to use original data source and
Item::val_xxx_result methods to use the item's result field. But for the
Item_func_set_user_var class val_xxx_result methods were mapped to val_xxx
methods. This leads, in particular, to producing bad sort keys and thus
wrong order of the result set of queries with group by/order by clauses.

The set of val_xxx_result methods is added to the Item_func_set_user_var
class. It's the same as the val_xxx set of method but uses the result_field
to return a value.

using a derived table over a grouping subselect.

This crash happens only when materialization of the derived tables 
requires creation of auxiliary temporary table, for example when
a grouping operation is carried out with usage of a temporary table.

The crash happened because EXPLAIN EXTENDED when printing the query
expression made an attempt to use the objects created in the mem_root
of the temporary table which has been already freed by the moment
when printing is called.

This bug appeared after the method Item_field::print() had been 
introduced.    

into  pilot.(none):/data/msvensson/mysql/mysql-5.0-maint

into  bk-internal.mysql.com:/data0/bk/mysql-5.0-opt

- Cleanup typo.
- Make sure to only embedded four part numberic version.