> ------------------------------------------------------------
> revno: 2763
> revision-id: sergey.glukhov@sun.com-20090602063813-33mh88cz5vpa2jqe
> parent: alexey.kopytov@sun.com-20090601124224-zgt3yov9wou590e9
> committer: Sergey Glukhov <Sergey.Glukhov@sun.com>
> branch nick: mysql-5.0-bugteam
> timestamp: Tue 2009-06-02 11:38:13 +0500
> message:
>   Bug#45152 crash with round() function on longtext column in a derived table
>   The crash happens due to wrong max_length value which is set on
>   Item_func_round::fix_length_and_dec() stage. The value is set to
>   args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
>   The fix is to set max_length using float_length() function.

> ------------------------------------------------------------
> revno: 2733
> revision-id: gshchepa@mysql.com-20090430192037-9p1etcynkglte2j3
> parent: aelkin@mysql.com-20090430143246-zfqaz0t7uoluzdz2
> committer: Gleb Shchepa <gshchepa@mysql.com>
> branch nick: mysql-5.0-bugteam
> timestamp: Fri 2009-05-01 00:20:37 +0500
> message:
>   Bug #37362: Crash in do_field_eq
>   
>   EXPLAIN EXTENDED of nested query containing a error:
>   
>      1054 Unknown column '...' in 'field list'
>   
>   may cause a server crash.
>   
>   
>   Parse error like described above forces a call to
>   JOIN::destroy() on malformed subquery.
>   That JOIN::destroy function closes and frees temporary
>   tables. However, temporary fields of these tables
>   may be listed in st_select_lex::group_list of outer
>   query, and that st_select_lex may not cleanup them
>   properly. So, after the JOIN::destroy call that
>   st_select_lex::group_list may have Item_field
>   objects with dangling pointers to freed temporary
>   table Field objects. That caused a crash.

adventure.

into actual tree

per-file comments:
  tests/mysql_client_test.c
the test for bug 37956 isn't relevant anymore.
The query there 'select point(?,?)' doesn't produce an error.

no conflicts

                  (moved from Bug 42308)

Details:
- insert_update
  Add DROP TABLE which was missing, error numbers -> names
- varbinary
  Add DROP TABLE which was missing
- sp_trans_log
  Add missing DROP function, improved formatting

      
Fixed a number of typos, and made punctuation and
capitalization more consistent in documentation
and help.

The issue of the current bug is unguarded access to mi->slave_running 
by the shutdown thread calling end_slave() that is bug#29968 
(alas happened not to be cross-linked with the current bug)

Fixed:

with removing the unguarded read of the running status
and perform reading it in terminate_slave_thread()
at time run_lock is taken (mostly bug#29968 backporting, still with some
improvements over that patch - see the error reporting from 
terminate_slave_thread()).
Issue of bug#38716 is fixed here for 5.0 branch as well.

Note:

There has been a separate artifact identified - 
a race condition between init_slave() and  end_slave() - 
reported as  Bug#44467.

mysql-test/r/rpl_bug38694.result:
  a new results file is added.
mysql-test/t/rpl_bug38694-slave.opt:
  simulating delay at slave threads shutdown.
mysql-test/t/rpl_bug38694.test:
  A new test to check if a delay at the termination phase of slave threads
  could cause any issue.
sql/slave.cc:
  The unguarded read of the running status is removed. Its reading is done in
  terminate_slave_thread() at time run_lock is taken;
  Calling terminate_slave_threads(skip_lock := !need_slave_mutex) in the failing branch of start_slave_threads() which is bug#38716 issue.
sql/slave.h:
  removing terminate_slave_thread() out of the global interface scope.

   the Point() and Linestring() functions create WKB representation of an
   object instead of an real geometry object.
   That produced bugs when these were inserted into tables.

   GIS tests fixed accordingly.
            
per-file messages:
  mysql-test/r/gis-rtree.result
Bug#38990 Arbitrary data input plus GIS functions causes mysql server crash 
    test result
  mysql-test/r/gis.result
Bug#38990 Arbitrary data input plus GIS functions causes mysql server crash 
    test result
  mysql-test/t/gis-rtree.test
Bug#38990 Arbitrary data input plus GIS functions causes mysql server crash 
    test fixed - GeomFromWKB invocations removed
  mysql-test/t/gis.test
Bug#38990 Arbitrary data input plus GIS functions causes mysql server crash 
    test fixed - AsWKB invocations added
  sql/item_geofunc.cc
Bug#38990 Arbitrary data input plus GIS functions causes mysql server crash 
     Point() and similar functions to create a proper object

Bug #40925: Equality propagation takes non indexed attribute

Query execution plans and execution time of queries like

  select a, b, c from t1
    where a > '2008-11-21' and b = a limit 10

depended on the order of equality operator parameters:
"b = a" and "a = b" are not same. 


An equality propagation algorithm has been fixed:
the substitute_for_best_equal_field function should not
substitute a field for an equal field if both fields belong
to the same table.


mysql-test/r/select.result:
  Added test case for bug #40925.
mysql-test/t/select.test:
  Added test case for bug #40925.
sql/item.cc:
  Bug #40925: Equality propagation takes non indexed attribute
  
  An equality propagation algorithm has been fixed:
  the substitute_for_best_equal_field function should not 
  substitute a field for an equal field if both fields belong
  to the same table.

Turned off autocommit at the start of this test per Innobase recommendation.
Noted significant reduction in run time for this test w/ a minor increase in other tests' run-times.

1) BUG#43309 - Test main.innodb can't be run twice

Detailed revision comments:

r4701 | vasil | 2009-04-13 17:03:46 +0300 (Mon, 13 Apr 2009) | 6 lines
branches/5.0:

Fix Bug#43309 Test main.innodb can't be run twice

by making the innodb.test reentrant.

1) BUG#42279 - Race condition in btr_search_drop_page_hash_when_freed()

Detailed revision comments:

r4031 | marko | 2009-01-23 15:33:46 +0200 (Fri, 23 Jan 2009) | 8 lines
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

                   for indexes of InnoDB table

Fixes by replacing the PRNG that is used to pick random pages with a 
better one. 

Also adds a configuration option "innodb_use_legacy_cardinality_algorithm"
to enable the fix only when the option is set.

This patch is from http://bugs.mysql.com/file.php?id=11789

QUERY statement
      
Commit 55629 applied to 5.0-bugteam and 5.1-bugteam: 
Check for thd->killed in CHECKSUM loop.

mysqldump.test is designed to run with concurrent inserts
disabled. It is disabling concurrent inserts at the very
beginning of the test case, and re-enables them at the
bottom of the test. But for some reason (likely incorrect
merge) we enable concurrent inserts in the middle of the test.

The problem is fixed by enabling concurrent inserts only
at the bottom of the test case.

  to wrong results
      
3 problems found with DES_ENCRYPT/DES_DECRYPT :

1. The max length was not calculated properly. Fixed in fix_length_and_dec()
2. DES_ENCRYPT had a side effect of sometimes reallocating and changing 
the value of its argument. Fixed by explicitly pre-allocating the necessary
space to pad the argument with trailing '*' (stars) when calculating the 
DES digest.
3. in DES_ENCRYPT the string buffer for the result value was not 
reallocated to the correct size and only string length was assigned to it. 
Fixed by making sure there's enough space to hold the result.

information schema tables are based on internal tmp tables which are removed
after each statement execution. So HANDLER comands can not be used with
information schema.


mysql-test/r/handler.result:
  test result
mysql-test/t/handler.test:
  test case
sql/sql_handler.cc:
  information schema tables are based on internal tmp tables which are removed
  after each statement execution. So HANDLER comands can not be used with
  information schema.

Streamlined how we increase the size of our test table.
The new method shows run time decreased by ~60%.
This is not a guarantee that we will not see test timeouts (the random failures noted in the bug),
but it should significantly reduce the chances of this occurring.

fixed message for 'help' command


client/mysql.cc:
  fixed message for 'help' command