This patch adds cost estimation for the queries with ORDER BY / GROUP BY
and LIMIT. 
If there was a ref/range access to the table whose rows were required
to be ordered in the result set the optimizer always employed this access
though a scan by a different index that was compatible with the required 
order could be cheaper to produce the first L rows of the result set.
Now for such queries the optimizer makes a choice between the cheapest
ref/range accesses not compatible with the given order and index scans
compatible with it.

into  mysql.com:/home/hf/work/29878/my51-29878

into  mysql.com:/home/hf/work/29878/my51-29878

into  magare.gmz:/home/kgeorge/mysql/autopush/B30000-5.1-opt

 slow query log
Disable the SHOW commands to appear in the show query
log.
Update the commands type array.

cannot check the statments in the binlog for row based 
replication.

Item_func_user doesn't calculate anything in it's val_str() method,
just returns saved str_value.
Though Item::save_in_field method can destroy str_value, relying on
val_str() return. As a result we get the garbage stored in field.

We cannot use Item::save_in_field implementation for Item_func_user,
reimplement it in simpler way.

 - reset the logs before and after the test.
 - cleanup from the previous tests : use the correct schema.

into  magare.gmz:/home/kgeorge/mysql/autopush/B30036-5.1-opt

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

into  mysql.com:/home/psergey/mysql-5.0-bdb-fix

 - make ha_berkeley::cmp_ref() take into account that auto-generated PKs 
   are stored in LSB-first order. 
 - Remove the temporary code that made the bugfix work for innodb only 

SHOW TABLE TYPES is a (to be deprecated) synonym for 
SHOW STORAGE ENGINES.
Fixed to use the right schema table in addition to 
issuing a warning.

into  magare.gmz:/home/kgeorge/mysql/autopush/B29571-5.0-opt

 the master but on the slave

MySQL can decide to "downgrade" a INSERT DELAYED statement
to normal insert in certain situations.
One such situation is when the slave is replaying a 
replication feed.
However INSERT DELAYED is logged even if there're no updates
whereas the NORMAL INSERT is not logged in such cases.

Fixed by always logging a "downgraded" INSERT DELAYED: even 
if there were no updates.

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

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

  Post-merge fix.

  Post-merge fix.

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

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

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

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime

When the SQL_BIG_RESULT flag is specified SELECT should store items from the
select list in the filesort data and use them when sending to a client.
The get_addon_fields function is responsible for creating necessary structures
for that. But this function was allowed to do so only for SELECT and
INSERT .. SELECT queries. This makes the SQL_BIG_RESULT useless for
the CREATE .. SELECT queries.

Now the get_addon_fields allows storing select list items in the filesort
data for the CREATE .. SELECT queries.

Changed the default location of the log output to LOG_FILE,
for backward compatibility with MySQL 5.0

into  magare.gmz:/home/kgeorge/mysql/autopush/B29644-5.0-opt

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

  Limit the fix for bug 28591 to InnoDB only

If a primary key is defined over column c of enum type then 
the EXPLAIN command for a look-up query of the form
  SELECT * FROM t WHERE c=0
said that the query was with an impossible where condition though the
query correctly returned non-empty result set when the table indeed 
contained rows with error empty strings for column c. 

This kind of misbehavior was due to a bug in the function 
Field_enum::store(longlong,bool) that erroneously returned 1 if
the the value to be stored was equal to 0. 
Note that the method 
Field_enum::store(const char *from,uint length,CHARSET_INFO *cs)
correctly returned 0 if a value of the error empty string 
was stored. 

into  magare.gmz:/home/kgeorge/mysql/autopush/B28951-5.0-opt

into  mysql.com:/home/hf/work/29494/my41-29494

into  mysql.com:/home/hf/work/29494/my50-29494

into  mysql.com:/home/hf/work/29494/my51-29494

into  mysql.com:/home/hf/work/29494/my51-29494