Locked rows of the InnoDB storage was silently skipped in the read-committed
isolation level.

QUICK_RANGE_SELECT for unique ranges lacks second (blocking) read
of the record that was read semi-consistently and just skip it.

The handler::read_multi_range_next method has been modified
to retry previous unique range if the previous read was
semi-consistent.

into  magare.gmz:/home/kgeorge/mysql/autopush/B31094-5.1-opt

A rule was introduced by the 5.1 part of the fix for bug 27531 to 
prefer filesort over indexed ORDER BY when accessing all of the rows of a 
table (because it's faster). This new rule was not accounting for the 
presence of a LIMIT clause.
Fixed the condition for this rule so it will prefer filesort over 
indexed ORDER BY only if no LIMIT.

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my50-30286

into  mysql.com:/home/hf/work/30286/my41-30286

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my50-30286

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my41-30286

into  mysql.com:/home/hf/work/30286/my50-30286

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my51-30286

into  mysql.com:/home/hf/work/30286/my50-30286

As the result of DOUBLE claculations can be bigger
than DBL_MAX constant we use in code, we shouldn't use this constatn
as a biggest possible value.
Particularly the rtree_pick_key function set 'min_area= DBL_MAX' relying
that any rtree_area_increase result will be less so we return valid
key. Though in rtree_area_increase function we calculate the area
of the rectangle, so the result can be 'inf' if the rectangle is
huge enough, which is bigger than DBL_MAX.

Code of the rtree_pick_key modified so we always return a valid key.

into  mysql.com:/home/hf/work/26527/my51-26527

into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt

into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt

added check for hidden I_S tables for 'show columns|keys' commands

into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt

  Post-merge fix.

into  gleb.loc:/home/uchum/work/bk/5.1-opt

end-of-line check missed in Gis_read_stream::get_next_word,
what can lead to crashes (expecially with NULL strings).

End-of-line check added

into  gleb.loc:/home/uchum/work/bk/5.0-opt

  Bug #31077: post-commit fix.

into  gleb.loc:/home/uchum/work/bk/5.0-opt

  Bug #31077: post-commit fix.

into  gleb.loc:/home/uchum/work/bk/5.0-opt

into  magare.gmz:/home/kgeorge/mysql/autopush/B28702-vg-5.0-opt

into  dl145s.mysql.com:/data0/mhansson/bug30832/my50-bug30832

into  moonbone.local:/work/31095-bug-5.0-opt-mysql

The Item_func_rollup_const class is used for wrapping constants to avoid
wrong result for ROLLUP queries with DISTINCT and a constant in the select
list. This class is also used to wrap up a NULL constant but its null_value
wasn't set accordingly. This led to a server crash.

Now the null_value of an object of the Item_func_rollup_const class is set
by its fix_length_and_dec member function.

into  dl145s.mysql.com:/data0/mhansson/bug30832/my51-bug30832