into  mysql.com:/home/hf/work/21888/my50-21888

RTree keys are really different from BTree and need specific
paramters to be set by optimizer to work.
Sometimes optimizer doesn't set those properly.
Here we decided just to add code to check that the parameters
are correct. Hope to fix optimizer sometimes.

 - reversed the patch for 5.0 and moved to 5.1

into  mysql.com:/home/hf/work/mysql-5.0-mrg

into  rurik.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug21646

into  rurik.mysql.com:/home/igor/mysql-5.0-opt

Presence of a subquery in the ON expression of a join 
should not block merging the view that contains this join.
Before this patch the such views were converted into 
into temporary table views.

an ALL/ANY quantified subquery in HAVING.
The Item::split_sum_func2 method should not create Item_ref
for objects of any class derived from Item_subselect.

into  mysql.com:/home/hf/work/mysql-5.0-mrg

into  mysql.com:/home/hf/work/mysql-4.1.15428

into  mysql.com:/home/hf/work/mysql-4.1.15428

into  rurik.mysql.com:/home/igor/mysql-5.0-opt

Any default value for a enum fields over UCS2 charsets was corrupted
when we put it into the frm file, as it had been overwritten by its
HEX representation.
To fix it now we save a copy of structure that represents the enum
type and when putting the default values we use this copy. 

into  rurik.mysql.com:/home/igor/mysql-5.0-opt

that returns the results of aggregation by GROUP_CONCAT.
The crash was due to an overflow happened for the field
sortoder->length.
The fix prevents this overflow exploiting the fact that the
value of sortoder->length cannot be greater than the value of
thd->variables.max_sort_length.   

into  rakia.(none):/home/kgeorge/mysql/autopush/B21540-5.0-opt

into  rurik.mysql.com:/home/igor/mysql-5.0-opt

into  rakia.(none):/home/kgeorge/mysql/autopush/B21540-5.0-opt

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

into  dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt

into  dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt

into  dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt

into  dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-4.1-opt

statement that uses an aggregating IN subquery with 
HAVING clause.
A wrong order of the call of split_sum_func2 for the HAVING
clause of the subquery and the transformation for the 
subquery resulted in the creation of a andor structure
that could not be restored at an execution of the prepared
statement.

containing a select statement that uses an aggregating IN subquery.
Added a parameter to the function fix_prepare_information 
to restore correctly the having clause for the second execution.
Saved andor structure of the having conditions at the proper moment
before any calls of split_sum_func2 that could modify the having structure
adding new Item_ref objects. (These additions, are produced not with 
the statement mem_root, but rather with the execution mem_root.)

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  macbook.gmz:/Users/kgeorge/mysql/work/B21180-4.1-opt

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/work/my50-work

into  shellback.(none):/home/msvensson/mysql/work/my50-work

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/work/my50-work

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/work/my50-work

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint