The source of the problem is in Field_longlong::cmp. If 'this' is
an unsigned number, the method casts both the current value, and
the constant that we compare with to an unsigned number. As a
result if the constant we compare with is a negative number, it
wraps to some unsigned number, and the comparison is incorrect.

When the optimizer chooses the "range" access method, this problem
causes handler::read_range_next to reject the current key when the
upper bound key is a negative number because handler::compare_key
incorrectly considers the positive and negative keys to be equal.

The current patch does not correct the source of the problem in
Field_longlong::cmp because it is not easy to propagate sign
information about the constant at query execution time. Instead
the patch changes the range optimizer so that it never compares
unsiged fields with negative constants. As an added benefit,
queries that do such comparisons will execute faster because
the range optimizer replaces conditions like:
(a) (unsigned_int [< | <=] negative_constant) == FALSE
(b) (unsigned_int [> | >=] negative_constant) == TRUE
with the corresponding constants.
In some cases this may even result in constant time execution.


mysql-test/r/range.result:
  - Changed incorrect result of an old test
  - Added new results for BUG#11185
mysql-test/t/range.test:
  - Added new tests for BUG#11185
  - Deleted an old comment because now the problem is fixed
sql/opt_range.cc:
  Added a new optimization to the range optimizer where we detect that
  an UNSIGNED field is compared with a negative constant. Depending on
  the comparison operator, we know directly that the result of the
  comparison is either TRUE or FALSE for all input values, and we need
  not check each value.
  
  This optimization is also necessary so that the index range access
  method produces correct results when comparing unsigned fields with
  negative constants.

  Added optional paths for finding mysqld on Windows
  Added language/charset options to embedded mysql_client_test


mysql-test/mysql-test-run.pl:
  Added optional paths for finding mysqld on Windows
  Added language/charset options to embedded mysql_client_test

into  moonbone.local:/work/mysql-4.1-bug-10886


sql/sql_insert.cc:
  Auto merged

Temporary field wasn't restored to default values after ON DUPLICATE KEY
 UPDATE event, which results in wrong data being inserted in new record.


sql/sql_insert.cc:
  Fix bug #10886 - INSERT ... SELECT ... ON DUPLICATE KEY UPDATE produces bad results
mysql-test/t/insert_select.test:
  Test case for bug #10886 - INSERT ... SELECT ... ON DUPLICATE KEY 
  UPDATE produces bad results
mysql-test/r/insert_select.result:
  Test case for bug #10886 - INSERT ... SELECT ... ON DUPLICATE KEY UPDATE 
  produces bad results

into rurik.mysql.com:/home/igor/mysql-4.1

into rurik.mysql.com:/home/igor/dev/mysql-4.1-1

  Added a test case for bug #11295.
item_buff.cc:
  Fixed bug #11295.
  This a correction for the patch of bug #11088 that takes into
  account a possible NULL values of the BLOB column.


sql/item_buff.cc:
  Fixed bug #11295.
  This a correction for the patch of bug #11088 that takes into
  account a possible NULL values of the BLOB column.
mysql-test/t/group_by.test:
  Added a test case for bug #11295.
mysql-test/r/group_by.result:
  Added a test case for bug #11295.

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

  More compact and safe handling of path names.
  Support for running in Windows source tree.
  Use libtool wrapper, instead of messing with
  library path names, and objects in .libs dir.
mtr_misc.pl:
  Utility function that search aand check path names
mtr_report.pl:
  Patch by Carsten, set correct reject/result/eval if not main suite


mysql-test/lib/mtr_report.pl:
  Patch by Carsten, set correct reject/result/eval if not main suite
mysql-test/lib/mtr_misc.pl:
  Utility function that search aand check path names
mysql-test/mysql-test-run.pl:
  More compact and safe handling of path names.
  Support for running in Windows source tree.
  Use libtool wrapper, instead of messing with
  library path names, and objects in .libs dir.

into  mysql.com:/home/jimw/my/mysql-4.1-clean

  Bug#11466: Script can now get test case name
  from test case file path on command line
mysql-test-run.pl:
  Bug#11466: Added --skip-ndbcluster/--skip-ndb option
mtr_cases.pl:
  Don't set --default-time-zone if opt file sets it
  Restart the server if time zone is given in opt file
mysql-test-run.pl:
  Don't remove symlink to "var" directory in cleanup
  Removed duplicate/unessesary options to mysqld


mysql-test/mysql-test-run.pl:
  Bug#11466: Added --skip-ndbcluster/--skip-ndb option
mysql-test/lib/mtr_cases.pl:
  Bug#11466: Script can now get test case name
  from test case file path on command line

into mysql.com:/Users/kent/mysql/bk/mysql-4.1

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into rurik.mysql.com:/home/igor/mysql-4.1

  Added  a test case for bug #11385.
group_by.test:
  Added  a test case for bug #11385.
field.h:
  Fixed bug #11385.
  The bug was due to not defined method decimals for the class
  Field_datetime.


sql/field.h:
  Fixed bug #11385.
  The bug was due to not defined method decimals for the class
  Field_datetime.
mysql-test/t/group_by.test:
  Added  atest case for bug #11385.
mysql-test/r/group_by.result:
  Added  a test case for bug #11385.

commit. (Bug #10840)


client/mysql.cc:
  Add cast of unsigned value stored in signed char

  Corrected dependency for "lex_hash.h", to avoid occasional make failure


sql/Makefile.am:
  Corrected dependency for "lex_hash.h", to avoid occasional make failure

  Added CR for readability


sql/ha_ndbcluster.cc:
  Added CR for readability

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

into igor-inspiron.creware.com:/home/igor/mysql-4.1


sql/sql_select.cc:
  Auto merged

into mysql.com:/home/dlenev/src/mysql-4.1-bg11060

INSERT ... SELECT with UNION" (reviewed version).

Altough bug manifest itself only starting from 5.0 it is better to
apply fix to 4.1 to keep some assumptions true and make code more
future-proof.


mysql-test/r/ps.result:
  Added test case for bug #11060 "Server crashes on re-execution of
  prepared INSERT ... SELECT with UNION".
mysql-test/t/ps.test:
  Added test case for bug #11060 "Server crashes on re-execution of
  prepared INSERT ... SELECT with UNION".
sql/sql_insert.cc:
  select_insert::prepare():
    Item::fix_fields() methods operate assuming that LEX::current_select
    points to the select to which current item belongs. Thus
    during check_insert_fields() routine execution LEX::current_select
    should point ot the first select in query since this is the
    select with which items in insert list is associated.
    But if we have INSERT SELECT UNION SELECT type of query
    LEX::current_select will point to the fake_select_lex instead
    since select_insert::prepare() is called during processing of JOIN
    which corresponds to this select_lex.
    So we have set LEX::current_select before calling check_insert_fields()
    and restore it afterwards.

  Use the Perl version of mysql-test-run


Makefile.am:
  Use the Perl version of mysql-test-run

  Corrected path to 'mysql_fix_privilege_tables'


mysql-test/mysql-test-run.pl:
  Corrected path to 'mysql_fix_privilege_tables'

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

  Corrected path to 'mysql_fix_privilege_tables'
  Corrected dummy --manager-port to take integer argument


mysql-test/mysql-test-run.pl:
  Corrected path to 'mysql_fix_privilege_tables'

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1


sql/ha_ndbcluster.cc:
  Auto merged

into dl145c.mysql.com:/home/ndbdev/tomas/mysql-4.1

  remove typecheck in ndb handler not needed


sql/ha_ndbcluster.cc:
  remove typecheck in ndb handler not needed

ndb/src/kernel/SimBlockList.cpp:
  GCC 4.0 build fix

  Added dummy --manager-port flag, for backward compatibility
  Back port from 5.0, correction of paths to SSL pem files
mtr_cases.pl:
  Removed hard coded exclude list for embedded server
mysql-test-run.pl:
  Set environment variable MYSQL_SHOW, to be used in test cases


mysql-test/lib/mtr_cases.pl:
  Removed hard coded exclude list for embedded server
mysql-test/mysql-test-run.pl:
  Added dummy --manager-port flag, for backward compatibility
  Back port from 5.0, correction of paths to SSL pem files

into mysql.com:/Users/kent/mysql/bk/mysql-4.1

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

which the query contained more words than we allocated space. (Bug #7858)


myisam/ft_boolean_search.c:
  Fix calculation of max number of elements -- "words" may not have spaces
  between them.
mysql-test/t/fulltext.test:
  Modify test to be specific to reported bug (fix for old bug wasn't quite enough)
mysql-test/r/fulltext.result:
  Update results

into rurik.mysql.com:/home/igor/mysql-4.1