Addendum fixes after changing the condition variable
for the global read lock.

The stress test suite revealed some deadlocks. Some were
related to the new condition variable (COND_global_read_lock)
and some were general problems with the global read lock.

It is now necessary to signal COND_global_read_lock whenever 
COND_refresh is signalled.

We need to wait for the release of a global read lock if one 
is set before every operation that requires a write lock.
But we must not wait if we have locked tables by LOCK TABLES.
After setting a global read lock a thread waits until all
write locks are released.


mysql-test/r/lock_multi.result:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Added test results.
mysql-test/t/lock_multi.test:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Added tests for possible deadlocks that did not occur
  with the stress test suite.
mysys/thr_lock.c:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Added a protection against an infinite loop that occurs
  with the test case for Bug #20662.
sql/lock.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Signal COND_global_read_lock whenever COND_refresh
  is signalled by using the new function broadcast_refresh().
  Added the definition of a new function that signals 
  COND_global_read_lock whenever COND_refresh is signalled.
sql/mysql_priv.h:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Added a declaration for a new function that signals 
  COND_global_read_lock whenever COND_refresh is signalled.
sql/sql_base.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Signal COND_global_read_lock whenever COND_refresh
  is signalled by using the new function broadcast_refresh().
sql/sql_handler.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Signal COND_global_read_lock whenever COND_refresh
  is signalled by using the new function broadcast_refresh().
sql/sql_insert.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Removed global read lock handling from inside of 
  INSERT DELAYED. It is handled on a higher level now.
sql/sql_parse.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Wait for the release of a global read lock if one is set
  before every operation that requires a write lock.
  But don't wait if locked tables exist already.
sql/sql_table.cc:
  Bug#16986 - Deadlock condition with MyISAM tables
  Addendum fixes after changing the condition variable
  for the global read lock.
  Removed global read lock handling from inside of 
  CREATE TABLE. It is handled on a higher level now.
  Signal COND_global_read_lock whenever COND_refresh
  is signalled by using the new function broadcast_refresh().

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

into  mysql.com:/home/bk/fix-mysql-5.0

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

include/my_libwrap.h:
  Changed includes to the header file.
mysys/my_libwrap.c:
  Added comment and .c file now takes needed includes from
  the corresponding .h file.
sql/mysqld.cc:
  Include this block from my_libwra.h now.
  Moved two variables out of the otherwise
  same block.

into  may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-5.0


mysql-test/r/myisam.result:
  Auto merged
mysql-test/t/myisam.test:
  Auto merged
sql/opt_sum.cc:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged

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

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

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


sql/opt_sum.cc:
  Auto merged
mysql-test/r/myisam.result:
  SCCS merged
mysql-test/t/myisam.test:
  SCCS merged

            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.


mysql-test/r/myisam.result:
  Test case for BUG#20357.
mysql-test/t/myisam.test:
  Test case for BUG#20357.
sql/opt_sum.cc:
  Skip disabled/ignored indexes for min/max optimization.

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

into  mysql.com:/data0/knielsen/mysql-5.0

Backport Valgrind suppression from mysql-5.1:

D 1.4 05/11/23 22:44:54+02:00 monty@mysql.com 5 4 12/0/154
P mysql-test/valgrind.supp
C Remove warning that may happens becasue threads dies in different order


mysql-test/valgrind.supp:
  Add suppression for Valgrind warning.

into  mysql.com:/home/marty/MySQL/mysql-5.0

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main

into  mysql.com:/home/marty/MySQL/mysql-5.0


sql/ha_ndbcluster.cc:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main

into  mysql.com:/usr/home/ram/work/mysql-5.0


mysql-test/r/func_str.result:
  Auto merged
mysql-test/t/func_str.test:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
mysql-test/r/func_time.result:
  SCCS merged

into  a193-229-222-105.elisa-laajakaista.fi:/home/jani/mysql-5.0

sql/mysqld.cc:
  Fix for Bug#18246 "compilation error with tcp_wrapper"
  
  Added wrapper functions.

  Additional fix for #16377 for bigendian platforms
sql_select.cc, select.result, select.test:
  After merge fix


mysql-test/t/select.test:
  After merge fix
mysql-test/r/select.result:
  After merge fix
sql/sql_select.cc:
  After merge fix
sql/field.h:
  Additional fix for #16377 for bigendian platforms
sql/field.cc:
  Additional fix for #16377 for bigendian platforms

into moonbone.local:/work/tmp_merge-5.0-opt-mysql

In addition to include "mysql_upgrade" in a RPM, it should also be called
when the RPM is upgraded.


support-files/mysql.server.sh:
  Support getting additional arguments, which need to be passed on to the server.
  This works only if the server is started through "mysqld_safe", as the IM will not pass such arguments.
  So if the IM would be used, additional arguments cause the start to fail (voluntarily).
  
  This feature is needed so that tools like RPM can start the server in an "isolated" way,
  see the patch to the RPM spec file (also in this changeset) to call "mysql_upgrade".
support-files/mysql.spec.sh:
  Call "mysql_upgrade" during an RPM upgrade.
  
  "mysql_upgrade" needs a server to run, as it issues SQL commands.
  (This had been neglected previously.)
  It also needs to connect as "root", but in an RPM upgrade the password is unknown.
  To allow this, the server is started "--skip-grant-tables".
  Normally, this would open big security holes, so it is also started "--skip-networking",
  and access to the socket is limited to "mysql" + "root" by temporarily setting mode 700.

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

mysql-test/t/select.test:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged

  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


sql/item_cmpfunc.cc:
  Cleanup after fix for bug#18360 removal
mysql-test/t/select.test:
  Added test case for bug#18759 Incorrect string to numeric conversion.
mysql-test/r/select.result:
  Added test case for bug#18759 Incorrect string to numeric conversion.

Clearing active VIO before calling mysql_close() in the slave I/O
thread. 


sql/slave.cc:
  Clearing active VIO before calling mysql_close() in the slave I/O thread.

mysql-test/r/insert_select.result:
  Auto merged
mysql-test/t/insert_select.test:
  Auto merged

into  mysql.com:/home/emurphy/mysql-5.0-heikki

Fixes bug#17264, for alter table on win32 for successfull operation completion
it is used TL_WRITE(=10) lock instead of TL_WRITE_ALLOW_READ(=6), however here
in innodb handler TL_WRTIE is lifted to TL_WRITE_ALLOW_WRITE, which causes
race condition when several clients do alter table simultaneously.


mysql-test/r/lock_multi.result:
  Test case for bug#17264.
mysql-test/t/lock_multi.test:
  Test case for bug#17264

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main


ndb/src/ndbapi/ndberror.c:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main


ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/ndbapi/ndberror.c:
  Auto merged

into  mysql.com:/mnt/storeage/mysql-5.0

into sunlight.local:/home/evgen/tmp_merge-5.0-opt-mysql

  After merge fix


sql/item_cmpfunc.cc:
  After merge fix