become negative

- merged the fix to 5.1
- extended to cover I_S.PROCESSLIST.TIME
- Changed the column type of I_S.PROCESSLIST.TIME from LOGNLONG
  UNSIGNED
  to LONG (to match the SHOW PROCESSLIST type)
- Added a test case

"Release_lock("hello")" is now also successful when delivering NULL, replaced two sleeps by wait_condition. The last two "sleep 1" have not been replaced as all tried wait conditions leaded to nondeterministic results, especially to succeeding concurrent updates. To replace the sleeps there should be some time planned (or internal knowledge of the server may help).
 

sql/sql_select.cc:
  the if() separate arguments checks are slightly faster.

Re-recording of .result files for additional tests that use this include file.

If a sys-var has a base and a block-size>1, and then a
user-supplied value >= minimum ended up below minimum
thanks to block-size alignment, we threw a warning.
This meant for instance that when getting, then setting
the minimum, we'd see a warning. This was needlessly
confusing. (updated patch)

Replaced a call to load_defaults() in sql_plugin.cc with 
its thread-safe version.

select where .. (col=col and col=col) or ... (false expression)

Problem: optimizer didn't take into account a singular case 
when we eliminated all the predicates at the AND level of WHERE.
That may lead to wrong results.

Fix: replace (a=a AND a=a...) with TRUE if we eliminated all the
predicates.


mysql-test/r/select.result:
  Fix for bug #42957: no results from 
  select where .. (col=col and col=col) or ... (false expression)
    - test result.
mysql-test/t/select.test:
  Fix for bug #42957: no results from 
  select where .. (col=col and col=col) or ... (false expression)
    - test case.
sql/sql_select.cc:
  Fix for bug #42957: no results from 
  select where .. (col=col and col=col) or ... (false expression)
    - replacing equality predicates by multiple equality items check
  if we eliminate all the predicates at the AND level and 
  replace them with TRUE if so.

Revised patch incorporating cleaner test code brought up during review.
Removed the use of grep and accomplished same actions via SQL / use of the server.

Runs as before on *nix systems and now runs on Windows without Cygwin as well.

seems to become negative

THD::start_time has a dual meaning : it's either the time since the process
entered a given state or is the transaction time returned by e.g. NOW().
This causes problems, as sometimes THD::start_time may be set to a value
that is correct and needed when used as a base for NOW(), but these times
may be arbitrary (SET @@timestamp) or non-local (coming from the master 
through the replication feed).
If one such non-local time is set there's no way to return a correct value
for e.g. SHOW PROCESSLIST or SELECT ... FROM INFORMATION_SCHEMA.PROCESSLIST.
Fixed by making the Time column in SHOW PROCESSLIST SIGNED LONG instead of 
UNSIGNED LONG and doing the correct conversions.
      
Note that no reliable test suite can be constructed, since it would require
knowing the local time and can't be achieved by the means of the current test
suite.

sql/sql_show.cc:
  Bug #22047: make the Time in SHOW PROCESSLIST LONG from 
  LONG UNSIGNED

      
There are some recursive targets that automake generates which reference
DIST_SUBDIRS.  It's critical, then, for such subdirs to exist even if they
won't be built as part of SUBDIRS.

During a VPATH build, it is the configure script which creates the subdirs
(when it processes the AC_CONFIG_FILES() for each subdir's Makefile).  If
autoconf doesn't create a subdir's Makefile, then the recursive make will fail
when it is unable to cd into that subdir.

This isn't a problem in non-VPATH builds, because the subdirs are all present
in the source tarball.  So the problem only shows up during 'make distcheck',
which does a VPATH build.

The fix is to look, when configure is being created by autoconf, for any
plugin subdirectories.  These are the dynamic subdirectories which need to be
handled specially.  It's enough to tell autoconf to generate a Makefile for
any Makefile.am found in the plugin directory - all plugin subdirectories
using automake (i.e., listed in the plugin's DIST_SUBDIRS) will have a
Makefile.am.

This is done by calling 'find'.  This means that 'find' must be in the PATH on
the host that is running autoconf.  'find' is NOT needed when calling
configure, so it is not an additional dependency for the user.

Finally, ha_ndbcluster.m4 had called AC_CONFIG_FILES() on all those subdir
Makefiles, but only when the plugin was actually being built.  So it didn't
work in the case that NDB was not being built.  All of those Makefiles have to
be removed from this static list, since the plugin machinery is now adding
them automatically.  autoconf fails if a file is duplicated in
AC_CONFIG_FILES().

--added ability to obtain plugin variables from my.cnf on INSTALL PLUGIN stage
--option 'ignore-builtin-innodb' disables all InnoDB builtin plugins
  (including I_S plugins)


sql/mysql_priv.h:
  --added ability to obtain plugin variables from my.cnf on INSTALL PLUGIN stage
sql/mysqld.cc:
  --added ability to obtain plugin variables from my.cnf on INSTALL PLUGIN stage
sql/sql_plugin.cc:
  --added ability to obtain plugin variables from my.cnf on INSTALL PLUGIN stage
  --option 'ignore-builtin-innodb' disables all InnoDB builtin plugins
    (including I_S plugins)

test and (slightly different than 5.0) results.

Bug #43203  	Overflow from auto incrementing causes server segv

Detailed revision comments:

r4325 | sunny | 2009-03-02 02:28:52 +0200 (Mon, 02 Mar 2009) | 10 lines
branches/5.1: Bug#43203: Overflow from auto incrementing causes server segv
It was not a SIGSEGV but an assertion failure. The assertion was checking
the invariant that *first_value passed in by MySQL doesn't contain a value
that is greater than the max value for that type. The assertion has been
changed to a check and if the value is greater than the max we report a
generic AUTOINC failure.

rb://93
Approved by Heikki

Bug #42714  	AUTO_INCREMENT errors in 5.1.31

Detailed revision comments:

r4287 | sunny | 2009-02-25 05:32:01 +0200 (Wed, 25 Feb 2009) | 10 lines
branches/5.1: Fix Bug#42714 AUTO_INCREMENT errors in 5.1.31. There are two
changes to the autoinc handling.

1. To fix the immediate problem from the bug report, we must ensure that the
   value written to the table is always less than the max value stored in
   dict_table_t.

2. The second related change is that according to MySQL documentation when
   the offset is greater than the increment, we should ignore the offset.

Detailed revision comments:

r4165 | calvin | 2009-02-12 01:34:27 +0200 (Thu, 12 Feb 2009) | 1 line
branches/5.1: minor non-functional changes.

Bug #42400  	InnoDB autoinc code can't handle floating-point columns

Detailed revision comments:

r4065 | sunny | 2009-01-29 16:01:36 +0200 (Thu, 29 Jan 2009) | 8 lines
branches/5.1: In the last round of AUTOINC cleanup we assumed that AUTOINC
is only defined for integer columns. This caused an assertion failure when
we checked for the maximum value of a column type. We now calculate the
max value for floating-point autoinc columns too.

Fix Bug#42400 - InnoDB autoinc code can't handle floating-point columns
rb://84 and Mantis issue://162

r4111 | sunny | 2009-02-03 22:06:52 +0200 (Tue, 03 Feb 2009) | 2 lines
branches/5.1: Add the ULL suffix otherwise there is an overflow.

Bug #42279  	Race condition in btr_search_drop_page_hash_when_freed()

Detailed revision comments:

r4032 | marko | 2009-01-23 15:43:51 +0200 (Fri, 23 Jan 2009) | 10 lines
branches/5.1: Merge r4031 from branches/5.0:

btr_search_drop_page_hash_when_freed(): Check if buf_page_get_gen()
returns NULL.  The page may have been evicted from the buffer pool
between buf_page_peek_if_search_hashed() and buf_page_get_gen(),
because the buffer pool mutex will be released between these two calls.
(Bug #42279)

rb://82 approved by Heikki Tuuri

normalize error-messages

mysql-test/r/variables.result:
  show that warning uses underscore
  (sysvar-name), not hyphens (option-name)
mysql-test/t/variables.test:
  show that warning uses underscore
  (sysvar-name), not hyphens (option-name)
sql/set_var.cc:
  normalize error-messages