Problem: MySQL cp1251 did not support 'U+20AC EURO SIGN'
which was assigned a few years ago to 0x88.

Fix: adding mapping: 0x88 <-> U+20AC 

  @ mysql-test/include/ctype_8bit.inc
  New shared file to test 8bit character sets.

  @ mysql-test/r/ctype_cp1251.result
  @ mysql-test/t/ctype_cp1251.test
  Adding tests

  @ sql/share/charsets/cp1251.xml
  Adding mapping

  @ strings/ctype-extra.c
  Regenerating ctype-extra.c using strings/conf_to_src
  according to new cp1251.xml

After dropping and recreating the database specified along with --one-database
option at command line, mysql client keeps filtering the statements even after
the execution of a 'USE' command on the same database.

--one-database option enables the filtering of statements when the current
database is not the one specified at the command line. However, when the same
database is dropped and recreated the variable (current_db) that holds the
inital database name gets altered. This bug exploits the fact that current_db
initially gets set to null value (0) when a 'use db_name' follows the recreation
of same database db_name (speficied at the command line) and hence skip_updates
gets set to 1, which inturn triggers the further filtering of statements.

Fixed by making get_current_db() a no-op function when one_database is set,
and hence, under that condition current_db will not get altered.
Note, however the value of current_db can change when we execute 'connect'
command with a differnet database to reconnect to the server, in which case,
the behavior of --one-database will be formulated using this new database.


client/mysql.cc:
  Bug #54899 : --one-database option cannot handle DROP/CREATE DATABASE commands
  
  Added an if statement at the beginnning of get_current_db() , which makes it
  a no-op function if one-database option is specified, and hence current_db
  remains unchanged.
  
  Changed the help message for one-database option to a more appropriate message
  as specified in mysql documentation.
mysql-test/r/mysql.result:
  Added a test case for bug#54899 and some more test cases to
  check other one-database option related behaviors.
mysql-test/t/mysql.test:
  Added a test case for bug#54899 and some more test cases to
  check other one-database option related behaviors.

43233/55794.

mysql-test/r/change_user.result:
  Don't use -1 integer wrap around. It used to work, but now we do what's
  actually in the documentation. In tests, we now use DEFAULT or the
  numeral equivalent (as we do in the 5.6 tests).
mysql-test/r/key_cache.result:
  Can't drop default key case is an error now, not a warning, for compatibility
  with 5.6.
mysql-test/r/variables.result:
  Can't drop default key case is an error now, not a warning, for compatibility
  with 5.6.
mysql-test/t/change_user.test:
  Don't use -1 integer wrap around. It used to work, but now we do what's
  actually in the documentation. In tests, we now use DEFAULT or the
  numeral equivalent (as we do in the 5.6 tests).
mysql-test/t/key_cache.test:
  Can't drop default key case is an error now, not a warning, for compatibility
  with 5.6.
mysql-test/t/variables.test:
  Can't drop default key case is an error now, not a warning, for compatibility
  with 5.6.
sql/mysqld.cc:
  0 is a legal (albeit magic) value: "drop key cache."
sql/set_var.cc:
  bound_unsigned() can go now, it was just a kludge until things are done
  The Right Way, which they are now.
  
  Can't drop default key case is an error now, not a warning, for compatibility
  with 5.6.
tests/mysql_client_test.c:
  Don't use -1 integer wrap around. It used to work, but now we do what's
  actually in the documentation. In tests, we now use DEFAULT or the
  numeral equivalent (as we do in the 5.6 tests).

EXCEPTIONS-CLIENT from all the places.

In case of low memory sort buffer QUICK_INDEX_MERGE_SELECT creates
temporary file where is stores row ids which meet QUICK_SELECT ranges
except of clustered pk range, clustered range is processed separately.
In init_read_record we check if temporary file is used and choose
appropriate record access method. It does not take into account that
temporary file contains partial result in case of QUICK_INDEX_MERGE_SELECT
with clustered pk range.
The fix is always to use rr_quick if QUICK_INDEX_MERGE_SELECT
with clustered pk range is used.


mysql-test/suite/innodb/r/innodb_mysql.result:
  test case
mysql-test/suite/innodb/t/innodb_mysql.test:
  test case
mysql-test/suite/innodb_plugin/r/innodb_mysql.result:
  test case
mysql-test/suite/innodb_plugin/t/innodb_mysql.test:
  test case
sql/opt_range.h:
  added new method
sql/records.cc:
  The fix is always to use rr_quick if QUICK_INDEX_MERGE_SELECT
  with clustered pk range is used.

and related small fixes.

mysql-test/t/user_var.test:
  test for bug
sql/field_conv.cc:
  From the C standard, memcpy() has undefined behaviour if to->ptr==from->ptr
sql/item_func.cc:
  In the case of BUG#56138, entry->value==ptr in which case memcpy()
  has undefined results per the C standard.
sql/sql_select.cc:
  Work around a bug in old gcc

Although ICC identifies itself as GCC, even in version numbers,
it does not support the stpcpy built-in.

include/m_string.h:
  Work around ICC. Hacks...

 options/settings
 
 1. Changed the default value for socket on Windows to the windows
 default
 2. Removed hard-coded trailing slashes from innodb_data_home_dir
 and innodb_log_group_name_dir.
 3. Added extra backslashes to the innodb directory example
 4. Made the tempdir platform "dependent"
 5. Fixed the comments in the .ini files
 6. Removed the tmpdir from the templates and the scripts

Problem: crash in Item_float constructor on DBUG_ASSERT due
to not null-terminated string parameter.

Fix: making Item_float::Item_float non-null-termintated parameter safe:
- Using temporary buffer when generating error

modified:
  @ mysql-test/r/xml.result
  @ mysql-test/t/xml.test
  @ sql/item.cc

Evaluation would start with the space and thus ignore the $
Added while() to skip past white space

Use __builtin_stpcpy only if the system supports stpcpy.
This is necessary as in some cases a call to stpcpy will
be emitted if the built-in can not optimized.

include/m_string.h:
  The expansion of stpcpy (in glibc) causes warnings if the
  return value of strmov is not being used. Since stpcpy is
  a GNU extension and the expansion ends up using a built-in
  provided by GCC, use the compiler provided built-in directly
  when possible. Nonetheless, the C library must have stpcpy
  as a call be emitted if the built-in can not optimized.

Results from query is sent for evaluation
Break recursion by asking for ` to be ignored

thr_local_create(): Initialize local->slot_no to ULINT_UNDEFINED.
thr_local_validate(): Allow local->slot_no to be ULINT_UNDEFINED.

Bug#55794: ulonglong options of mysqld show wrong values.

Port the few remaining system variables to the correct mechanism --
range-check in check-stage (and throw error or warning at that point
as needed and depending on STRICTness), update in update stage.
Fix some signedness errors when retrieving sysvar values for display.

mysql-test/r/variables.result:
  Show that we throw warnings or errors depending on strictness
  even for "special" variables now.
mysql-test/t/variables.test:
  Show that we throw warnings or errors depending on strictness
  even for "special" variables now.
sql/item_func.cc:
  show sys_var_ulonglong_ptr and SHOW_LONGLONG type variables as unsigned.
sql/set_var.cc:
  move range-checking from update stage to check stage for the remaining
  few sys-vars that broke the pattern
sql/set_var.h:
  add check functions.

Also delete dict_update_statistics() and rename dict_update_statistics_low()
to dict_update_statistics() because the only thing that distinguished those
two functions was the removed parameter.

thr_local_validate(), i_s_locks_row_validate(): New validate
functions, used in UNIV_DEBUG code for checking the state of internal
memory structures.

                  MySQL 5.1 server

Server used to clip overly long user-names. This was presumably lost
when code was made UTF8-clean.

Now we emulate the behaviour for backward compatibility, but UTF8-ly
correct.


mysql-test/r/connect.result:
  Show that user-names that are too long get clipped now.
mysql-test/t/connect.test:
  Show that user-names that are too long get clipped now.
sql/sql_connect.cc:
  Clip user-name to 16 characters (not bytes).
strings/CHARSET_INFO.txt:
  Clarify in docs.

to the error log

rb://513 approved by Sunny Bains

of InnoDB buffer pool initialization to the error log

Bug#57995: Compiler flag change build error on OSX 10.4: my_getncpus.c
Bug#57996: Compiler flag change build error on OSX 10.5 : bind.c
Bug#57994: Compiler flag change build error : my_redel.c
Bug#57993: Compiler flag change build error on FreeBsd 7.0 : regexec.c
Bug#57992: Compiler flag change build error on FreeBsd : mf_keycache.c
Bug#57997: Compiler flag change build error on OSX 10.6: debug_sync.cc

Fix assorted compiler generated warnings.

cmd-line-utils/readline/bind.c:
  Bug#57996: Compiler flag change build error on OSX 10.5 : bind.c
  
  Initialize variable to work around a false positive warning.
include/m_string.h:
  Bug#57994: Compiler flag change build error : my_redel.c
  
  The expansion of stpcpy (in glibc) causes warnings if the
  return value of strmov is not being used. Since stpcpy is
  a GNU extension and the expansion ends up using a built-in
  provided by GCC, use the compiler provided built-in directly
  when possible.
include/my_compiler.h:
  Define a dummy MY_GNUC_PREREQ when not compiling with GCC.
libmysql/libmysql.c:
  Bug#58057: 5.1 libmysql/libmysql.c unused variable/compile failure
  
  Variable might not be used in some cases. So, tag it as unused.
mysys/mf_keycache.c:
  Bug#57992: Compiler flag change build error on FreeBsd : mf_keycache.c
  
  Use UNINIT_VAR to work around a false positive warning.
mysys/my_getncpus.c:
  Bug#57995: Compiler flag change build error on OSX 10.4: my_getncpus.c
  
  Declare variable in the same block where it is used.
regex/regexec.c:
  Bug#57993: Compiler flag change build error on FreeBsd 7.0 : regexec.c
  
  Work around a compiler bug which causes the cast to not be enforced.
sql/debug_sync.cc:
  Bug#57997: Compiler flag change build error on OSX 10.6: debug_sync.cc
  
  Use UNINIT_VAR to work around a false positive warning.
sql/handler.cc:
  Use UNINIT_VAR to work around a false positive warning.
sql/slave.cc:
  Use UNINIT_VAR to work around a false positive warning.
sql/sql_partition.cc:
  Use UNINIT_VAR to work around a false positive warning.
storage/myisam/ft_nlq_search.c:
  Use UNINIT_VAR to work around a false positive warning.
storage/myisam/mi_create.c:
  Use UNINIT_VAR to work around a false positive warning.
storage/myisammrg/myrg_open.c:
  Use UNINIT_VAR to work around a false positive warning.
tests/mysql_client_test.c:
  Change function to take a pointer to const, no need for a cast.

The test result differs on windows, since
it writes out 'localhost:<port>' instead of
only 'localhost', since it uses tcp/ip instead
of unix sockets on windows.

Fixed by replacing that column.

Also requires --big-test from some long running tests
and added a weekly run of all test requiring --big-test.

mysql-test/collections/default.weekly:
  Added a run of big-test (already exists in 5.5).
mysql-test/r/variables-big.result:
  Updated results
mysql-test/suite/parts/t/part_supported_sql_func_innodb.test:
  requiring --big-test since the test takes long time
mysql-test/suite/parts/t/partition_alter1_1_2_innodb.test:
  requiring --big-test since the test takes long time
mysql-test/suite/parts/t/partition_alter1_2_innodb.test:
  requiring --big-test since the test takes long time
mysql-test/suite/parts/t/partition_alter4_innodb.test:
  requiring --big-test since the test takes long time
mysql-test/t/disabled.def:
  Disabled two tests since they fail and was already
  reported as bugs (but was never run since they requires
  --big-test flag).
mysql-test/t/variables-big.test:
  Replacing column 3 in process list since it
  is not the same on windows as in unix.

           with on duplicate key update

There was a missed corner case in the partitioning
handler, which caused the next_insert_id to be changed
in the second level handlers (i.e the hander of a partition),
which caused this debug assertion.

The solution was to always ensure that only the partitioning
level generates auto_increment values, since if it was done
within a partition, it may fail to match the partition
function.

mysql-test/suite/parts/inc/partition_auto_increment.inc:
  Added tests
mysql-test/suite/parts/r/partition_auto_increment_blackhole.result:
  updated results
mysql-test/suite/parts/r/partition_auto_increment_innodb.result:
  updated results
mysql-test/suite/parts/r/partition_auto_increment_memory.result:
  updated results
mysql-test/suite/parts/r/partition_auto_increment_myisam.result:
  updated results
sql/ha_partition.cc:
  In <engine>::write_row the auto_inc value is generated
  through handler::update_auto_increment (which calls <engine>::get_auto_increment() if needed).
  If:
  * INSERT_ID was set to 0
  * it was updated to 0 by 'INSERT ... ON DUPLICATE KEY UPDATE' and changed partitions for the row
  Then it would try to generate a auto_increment value in the
  <engine for a specific partition>::write_row, which will
  trigger the assert.
  
  So the solution is to prevent this by,
  in ha_partition::write_row set auto_inc_field_not_null and
  add MODE_NO_AUTO_VALUE_ON_ZERO
  in ha_partition::update_row (when changing partition) temporary
  set table->next_number_field to NULL which calling the
  partitions ::write_row().