A fix and a test case for Bug#34898 "mysql_info() reports 0 warnings
while mysql_warning_count() reports 1"

Review the patch by Chad Miller, implement review comments
(since Chad left) and push the patch.

This bug is actually not a bug. At least according to Monty.
See Bug#841 "wrong number of warnings" reported back in July 2003
and closed as "not a bug".
mysql_info() was printing the number of truncated columns, not
the number of warnings.
But since the message of mysql_info() was "Warnings: <number of truncated
columns>", people would expect to get the number
of warnings in it, not the number of truncated columns.

So a possible fix would be to change the message of mysql_info()
to say Rows changed: <n>, truncated: <m>.

Instead, put the number of warnings there. That is, remove the
feature that thd->cuted_fields (the number of truncated fields)
is exposed to the client. The number of truncated columns can be
calculated on the client, by analyzing SHOW WARNINGS output,
and in future we may remove thd->cuted_fields altogether.
So let's have one less thing to worry about.

------------------------------------------------------------
revno: 2476.657.208
committer: anozdrin/alik@station.
timestamp: Tue 2007-12-04 17:22:53 +0300
message:
Remove rpl_probe, enable_rpl_parse and disable_rpl_parse commands
from mysqltest, the corresponding funtctions have been removed from
MySQL C API

------------------------------------------------------------
revno: 2476.981.1
committer: msvensson@pilot.mysql.com
timestamp: Mon 2007-11-26 19:03:23 +0100
message:
  Bug#31952 Remove undocumented mysql_rpl_* functions.
  - Functions removed + variables in st_mysql and st_mysql_options 
    renamed to "unused".
  - Code updated to work without those functions and variables

---------------------------------------------------------------------
revno: 2476.980.1
committer: msvensson@pilot.mysql.com
timestamp: Wed 2007-10-31 18:17:54 +0100
message:
  Bug#31954 Remove undocumented mysql_manager_* C API functions and
  mysqlmanager (old)
    - Remove the mysql_manager* functions, struct and defines

           redefining trigger
      
The 'table->auto_increment_field_not_null' flag is only valid within
processing of a single row, and should be set to FALSE before
navigating to the next row, or exiting the operation.
      
This bug was caused by an SQL error occuring while executing a trigger
after the flag had been set, so the normal resetting was bypassed.
The table object was then returned to the table share's cache in
a dirty condition.   When the table object was reused, an assert
caught that the flag was set.
      
This patch explicitly clears the flag on error/abort.


Backported from mysql-6.0-codebase  revid: 2617.52.1

The fix for Bug #38124 introuced a bug. If the value given 
for a set_var exceeded the length of the temporary buffer,
we would read behind the end of the buffer.  Using 
c_ptr_safe(), instead of c_ptr(), ensures that we won't
read beyond the buffer limit

mysql-6.0-codebase revid: 2617.44.1

                get_table_share, drop_open_table
            
In the partition handler code, LOCK_open and share->LOCK_ha_data
are acquired in the wrong order in certain cases.  When doing a
multi-row INSERT (i.e a INSERT..SELECT) in a table with auto-
increment column(s). the increments must be in a monotonically
continuous increasing sequence (i.e it can't have "holes"). To
achieve this, a lock is held for the duration of the operation.
share->LOCK_ha_data was used for this purpose.
            
Whenever there was a need to open a view _during_ the operation
(views are not currently pre-opened the way tables are), and
LOCK_open was grabbed, a deadlock could occur.  share->LOCK_ha_data
is other places used _while_ holding LOCK_open.
            
A new mutex was introduced in the HA_DATA_PARTITION structure,
for exclusive use of the autoincrement data fields, so we don't
need to overload the use of LOCK_ha_data here.
            
A module test case has not been supplied, since the problem occurs
as a result of a race condition, and testing for this condition 
is thus not deterministic.   Testing for it could be done by
setting up a test case as described in the bug report.

                  
When assigning the new string value to the variable, the
Item::str_value member was used.  This is not according to
the protocol.  str_value is an internal member used for
temporary assignments, and is not consistently set for all
string operations.  It is set for constant strings, so it would
work in these cases, but not for string functions (concat,
substr, etc.)
                  
The correct approach is to use Item::val_str(..) to evaluate
and retrieve the string.

Backport from 6.0-codebase

6.0-codebase revno: 2617.31.17

----------------------------------------------------------
revno: 2617.22.5
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Tue 2009-01-27 05:08:48 +0300
message:
  Remove non-prefixed use of HASH.
  Always use my_hash_init(), my_hash_inited(), my_hash_search(),
  my_hash_element(), my_hash_delete(), my_hash_free() rather
  than non-prefixed counterparts (hash_init(), etc).
  Remove the backward-compatible defines.

----------------------------------------------------------
revno: 2630.28.1
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Thu 2008-10-23 15:23:44 +0400
message:
  Bug#32738 "mysqld: Two slow log option/variable descriptions are
  inaccurate"
  Update option description per suggestion from the documentation team.

----------------------------------------------------------
revno: 2630.22.39
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Wed 2008-10-08 23:44:34 +0400
message:
  Bug #34481 A typo in HugeTLB error Message.

Bug #47274 assert in open_table on CREATE TABLE <already existing>

The problem was an assertion during execution of CREATE TABLES. 
This assertion would occur if INSERT DELAYED or REPLACE DELAYED
were used to update a table containing an AUTO_INCREMENT column
and if the inserted row had a user-supplied value for that column.
Any CREATE TABLE statement (including CREATE TABLE SELECT and
CREATE TABLE LIKE) trying to create the same table and 
which followed the INSERT/REPLACED would cause the assertion.

The problem was only noticeable on debug builds of the server
and not present in the mysql-5.1 tree.

The cause of the problem was that the code for delayed insert did
not properly reset the TABLE->auto_increment_if_null flag after 
The flag is used to indicate that a non-null value of an auto_increment field
has been provided by the user or retrieved from a current record.
Open_tables() contains an assertion that tests this flag, and this
was triggered by CREATE TABLE.

This patch fixes the problem by resetting the auto_increment_if_null
field to FALSE once INSERT/REPLACE DELAYED has updated the table, 
similar to what is done already for regular INSERT statements.

Test case added to delayed.test.

----------------------------------------------------------
revno: 2630.22.31
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Thu 2008-10-02 19:08:09 +0400
message:
  Bug #34818 --default-table-type option should be removed
  Remove the deprecated option.

----------------------------------------------------------
revno: 2630.22.8
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-runtime
timestamp: Sun 2008-08-10 18:49:52 +0400
message:
  Get rid of typedef struct for the most commonly used types:
  TABLE, TABLE_SHARE, LEX. This simplifies use of tags
  and forward declarations.

revno: 2630.2.16
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-runtime
timestamp: Fri 2008-06-27 13:26:03 +0400
message:
  Fix max_user_connections_func failure on Solaris.
  A connection that failed to log in due to a resource limit could
  be returned to the thread pool with a dangling link to user_connect
  structure of an old user. Later on it could be authenticated
  to a user that doesn't have a resource limit, so this dangling
  link won't be reset. --pool-of-threads mode made the situation
  easy to reproduce, and thus highlighted a bug that has been
  around forever.
  Make sure there are no dangling links.

----------------------------------------------------------
revno: 2630.7.1
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-lock-tables-new
timestamp: Mon 2008-06-02 15:14:18 +0400
message:
  Fix a test suite timeout in partition.test and partition_csv.test

----------------------------------------------------------
revno: 2630.2.6
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-27430
timestamp: Mon 2008-05-26 16:12:28 +0400
message:
  Cover four special cases of WL#4166 with tests:
  - when the query cache is disabled at the time of prepared statement
  reprepare
  - when long data parameters are used
  - when character_set_connection != character_set_client, and a parameter
  conversion takes place
  - when parameter data is out of acceptable range, e.g. year 10000 is
  supplied as part of MYSQL_TYPE_DATETIME value. The server is supposed
  to warn in such case.

-----------------------------------------------------------
revno: 2630.2.4
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-runtime
timestamp: Fri 2008-05-23 02:42:32 +0400
message:
  Bug#27430 "Crash in subquery code when in PS and table DDL changed after
  PREPARE"
  Add a test case for the situation with small TDC and many merge children.

from 6.0-codebase.

----------------------------------------------------------
revno: 2617.1.12
committer: kostja@bodhi.(none)
timestamp: Sun 2008-04-20 11:18:52 +0400
message:
  A fix for Bug#32771 "events_bugs.test fails randomly".
  In Event_scheduler::stop(), which may be called from destructor,
  wait synchronously for the parallel Event_scheduler::stop() to
  complete before returning. This fixes a race between
  MySQL shutdown thread and the scheduler thread who could call
  stop() in parallel.

local storage for query cache). 
We need more than one pointer in a thread to
represent the query cache and net->query_cache_query can not be used
any more (due to ABI compatibility issues and to different life
time of NET and THD).
This is a backport of the following patch from 6.0:
----------------------------------------------------------
revno: 2476.1157.2
committer: kostja@bodhi.(none)
timestamp: Sat 2007-06-16 13:29:24 +0400

           not on predefined values

The default name of the PID file was constructed, as documented, 
based on the hostname.  This name was subsequently used as the
base for the general log file name.   If the name of the PID
file was overridden in the configuration, and no explicit name
was set for the general log file, the path location for the
PID file was used also for the general log file.
                  
A new variable, 'default_logfile_name', has been introduced.  This name
is constructed based on the hostname, and is then used to
construct both the PID file and the general log file.
                  
The general log file will now, unless explicitly set, be
located in the server data directory (as documentated in
the server docs)

Unable to reproduce crash with current version of the 5.5.0 codebase.
Test case for MyISAM/InnoDB based on the bug rapport added to 
sp_trans.test.

Backport of revno: 2617.65.9.

     
Unable to reproduce error on current version of the 5.5.0
codebase. Test case based on the bug report added to trigger.test.

Backport of revno: 2617.52.11.

Original revision in 6.0:
------------------------------------------------------------
revno: 2630.13.14
committer: Alexander Nozdrin <alik@mysql.com>
branch nick: 6.0-rt-fix
timestamp: Fri 2008-07-25 22:44:20 +0400
message:
  Fix test & result files (WL 4300).
------------------------------------------------------------

Original revision in 6.0:
------------------------------------------------------------
revno: 2630.13.11
committer: Alexander Nozdrin <alik@mysql.com>
branch nick: 6.0-rt-wl4300
timestamp: Thu 2008-07-24 11:44:21 +0400
message:
  A patch for WL#4300: Define privileges for tablespaces.
------------------------------------------------------------

per-file messages:
  mysql-test/r/grant.result
    Update result file: new columm 'Create_tablespace_priv' has been added to mysql.user.
  mysql-test/r/ps.result
    Update result file: new columm 'Create_tablespace_priv' has been added to mysql.user.
  mysql-test/r/system_mysql_db.result
    Update result file: new columm 'Create_tablespace_priv' has been added to mysql.user.
  mysql-test/suite/falcon/r/falcon_tablespace_priv.result
    Test case for WL#4300.
  mysql-test/suite/falcon/t/falcon_tablespace_priv.test
    Test case for WL#4300.
  mysql-test/suite/ndb/r/ndb_dd_ddl.result
    Test case for WL#4300.
  mysql-test/suite/ndb/t/ndb_dd_ddl.test
    Test case for WL#4300.
  scripts/mysql_system_tables.sql
    New columm 'Create_tablespace_priv' has been added to mysql.user.
  scripts/mysql_system_tables_data.sql
    'CREATE TABLESPACE' is granted by default to the root user.
  scripts/mysql_system_tables_fix.sql
    Grant 'CREATE TABLESPACE' privilege during system table upgrade
    if a user had SUPER privilege.
  sql/sql_acl.cc
    Added CREATE TABLESPACE privilege.
  sql/sql_acl.h
    Added CREATE TABLESPACE privilege.
  sql/sql_parse.cc
    Check global 'CREATE TABLESPACE' privilege for the following SQL statements:
      - CREATE | ALTER | DROP TABLESPACE
      - CREATE | ALTER | DROP LOGFILE GROUP
  sql/sql_show.cc
    Added CREATE TABLESPACE privilege.
  sql/sql_yacc.yy
    Added CREATE TABLESPACE privilege.

           strict SQL mode

The problem was that a COMMENT longer than 64 characters
caused CREATE PROCEDURE to fail.

This patch fixed the problem by changing the COMMENT field in 
mysql.proc from char(64) to text. The corresponding ROUTINE_COMMENT
field in INFORMATION_SCHEMA.ROUTINES is also changed from
varchar(64) to longtext.

mysql_system_tables.sql and mysql_system_tables_fix.sql updated.
Test case added to sp.test and affected result-files updated.

case than in corr index".

Server was unable to find existing or explicitly created supporting
index for foreign key if corresponding statement clause used field
names in case different than one used in key specification and created
yet another supporting index.
In cases when name of constraint (and thus name of generated index)
was the same as name of existing/explicitly created index this led
to duplicate key name error.

The problem was that unlike all other code Key_part_spec::operator==()
compared field names in case sensitive fashion. As result routines
responsible for getting rid of redundant generated supporting indexes
for foreign key were not working properly for versions of field names
using different cases.

Original revision in 6.0:
------------------------------------------------------------
revno: 2599.108.1
committer: Alexander Nozdrin <alik@sun.com>
branch nick: 6.0-rpl-bug40128
timestamp: Wed 2009-01-21 15:33:42 +0300
message:
  Fix for Bug#40128: drop-no_root fails under windows in 6.0-rpl.
  
  The problem was that directories with no permission (000) files
  are deleted differently on UNIX and on Windows.
  
  On UNIX, 000-permission file is deleted perfectly, but other files
  are left in the directory.
  
  On Windows, 000-permission file is not deleted, but other files
  are deleted.
  
  Also, the fix needed a change in mysqltest.c: 'chmod' directive
  should return a positive error code (in order to be handled).
  It's decided to return a constant '1' for all error codes
  just to be OS-independent.
------------------------------------------------------------