may return a wrong result.

An Item_sum_hybrid object has the was_values flag which indicates whether any
values were added to the sum function. By default it is set to true and reset
to false on any no_rows_in_result() call. This method is called only in
return_zero_rows() function. An ALL/ANY subquery can be optimized by MIN/MAX
optimization. The was_values flag is used to indicate whether the subquery
has returned at least one row. This bug occurs because return_zero_rows() is
called only when we know that the select will return zero rows before
starting any scans but often such information is not known.
In the reported case the return_zero_rows() function is not called and
the was_values flag is not reset to false and yet the subquery return no rows
Item_func_not_all and Item_func_nop_all functions return a wrong
comparison result.

The end_send_group() function now calls no_rows_in_result() for each item
in the fields_list if there is no rows were found for the (sub)query.

  An UNIQUE KEY consisting of NOT NULL columns
  was displayed as PRIMARY KEY in "DESC t1".
  According to the code, that was intentional
  behaviour for some reasons unknown to me.
  This code was written before bitkeeper time,
  so I cannot check who and why made this.
  After discussing on dev-public, a decision
  was made to remove this code

  Disable the simplistic auto dependency scan for test/bench (bug#20078)

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

This bug in Field_string::cmp resulted in a wrong comparison 
with keys in partial indexes over multi-byte character fields.
Given field a is declared as a varchar(16) collate utf8_unicode_ci
INDEX(a(4)) gives us an example of such an index.
  
Wrong key comparisons could lead to wrong result sets if 
the selected query execution plan used a range scan by 
a partial index over a utf8 character field.
This also caused wrong results in many other cases.

into  may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1

into  may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1

            functions in queries

Using MAX()/MIN() on table with disabled indexes (by ALTER TABLE)
results in error 124 (wrong index) from storage engine.

The problem was that optimizer use disabled index to optimize
MAX()/MIN(). Normally it must skip disabled index and perform
table scan.

This patch skips disabled indexes for min/max optimization.

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Added test case for bug#18759 Incorrect string to numeric conversion.  
select.test:
  Added test case for bug#18759 Incorrect string to numeric conversion.
item_cmpfunc.cc:
  Cleanup after fix for bug#18360 removal

into  mysql.com:/usr/home/ram/work/mysql-4.1

into  mysql.com:/usr/home/ram/work/mysql-4.1

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Reverted fix for bug#18360

into  mysql.com:/home/kgeorge/mysql/4.1/B9676

              tables
Currently in INSERT ... SELECT ... LIMIT ... the compiler uses a 
temporary table to store the results of SELECT ... LIMIT .. and then
uses that table as a source for INSERT. The problem is that in some cases
it actually skips the LIMIT clause in doing that and materializes the 
whole SELECT result set regardless of the LIMIT.
This fix is limiting the process of filling up the temp table with only 
that much rows that will be actually used by propagating the LIMIT value.

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into  may.pils.ru:/home/svoj/devel/mysql/BUG18036/mysql-4.1

Certain updates of table joined to self results in unexpected
behavior.

The problem was that record cache was mistakenly enabled for
self-joined table updates. Normally record cache must be disabled
for such updates.

Fixed wrong condition in code that determines whether to use
record cache for self-joined table updates.

Only MyISAM tables were affected.

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Avoid error message trying 'windoze-dsp' in obsolete directory
compile-dist:
  Avoid error message for target 'distclean' and no Makefile

  Make output less verbose
  Make temporary directory name unique
  Remove temporary directory on interrupt

  Include "sql_yacc.yy" for completeness (bug#20387)

  Delete: netware/mysql_install.def
Makefile.am:
  Removed obsolete "mysql_install.def"

  Fix for bug#16716 for --ps-protocol mode.
item_cmpfunc.cc:
  Fix for a memory allocation/freeing problem in agg_cmp_type() after fix
for bug#16377. Few language corrections.

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into moonbone.local:/work/16377-4.1-after

  Post fix for bug#16377

into moonbone.local:/home/evgen/bk-trees/mysql-4.1-opt

into  mysql.com:/usr/home/ram/work/4.1.b15558

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main

into moonbone.local:/home/evgen/bk-trees/mysql-4.1-opt

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main

- correction of backport error

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main