In order to handle CHAR() fields, 8 bits were reserved for
the size of the CHAR field. However, instead of denoting the
number of characters in the field, field_length was used which
denotes the number of bytes in the field.

Since UTF-8 fields can have three bytes per character (and
has been extended to have four bytes per character in 6.0),
an extra two bits have been encoded in the field metadata
work for fields of type Field_string (i.e., CHAR fields).

Since the metadata word is filled, the extra bits have been
encoded in the upper 4 bits of the real type (the most 
significant byte of the metadata word) by computing the
bitwise xor of the extra two bits. Since the upper 4 bits
of the real type always is 1111 for Field_string, this 
means that for fields of length <256, the encoding is
identical to the encoding used in pre-5.1.26 servers, but
for lengths of 256 or more, an unrecognized type is formed,
causing an old slave (that does not handle lengths of 256
or more) to stop.


mysql-test/extra/rpl_tests/rpl_row_basic.test:
  Adding test cases for replicating UTF-8 fields of lengths
  of 256 or more (bytes).
mysql-test/suite/binlog/r/binlog_base64_flag.result:
  Result file change.
mysql-test/suite/binlog/t/binlog_base64_flag.test:
  Adding tests to trigger check that an error is generated when replicating from a
  5.1.25 server for tables with a CHAR(128) but not when replicating a table with a
  CHAR(63). Although the bug indicates that the limit is 83, we elected to use CHAR(63)
  since 6.0 uses 4-byte UTF-8, and anything exceeding 63 would then cause the test to fail
  when the patch is merged to 6.0.
mysql-test/suite/bugs/combinations:
  Adding combinations file to run all bug reports in all binlog modes (where
  applicable).
mysql-test/suite/bugs/r/rpl_bug37426.result:
  Result file change.
mysql-test/suite/bugs/t/rpl_bug37426.test:
  Added test for reported bug.
mysql-test/suite/rpl/r/rpl_row_basic_2myisam.result:
  Result file change.
mysql-test/suite/rpl/r/rpl_row_basic_3innodb.result:
  Result file change.
sql/field.cc:
  Encoding an extra two bits in the most significant nibble (4 bits)
  of the metadata word. Adding assertions to ensure that no attempt
  is made to use lengths longer than supported.
  
  Extending compatible_field_size() function with an extra parameter
  holding a Relay_log_instace for error reporting.
  
  Field_string::compatible_field_size() now reports an error if field
  size for a CHAR is >255.
sql/field.h:
  Field length is now computed from most significant 4 bits
  of metadata word, or is equal to the row pack length if
  there is no metadata.
  
  Extending compatible_field_size() function with an extra parameter
  holding a Relay_log_instace for error reporting.
sql/rpl_utility.cc:
  Adding relay log parameter to compatible_field_size().
  
  Minor refactoring to eliminate duplicate code.
sql/slave.cc:
  Extending rpl_master_has_bug() with a single-argument predicate function and
  a parameter to the predicate function. The predicate function can be used to
  test for extra conditions for the bug before writing an error message.
sql/slave.h:
  Extending rpl_master_has_bug() with a single-argument predicate function and
  a parameter to the predicate function. The predicate function can be used to
  test for extra conditions for the bug before writing an error message.
  
  Also removing gratuitous default argument.
sql/sql_insert.cc:
  Changing calls to rpl_master_has_bug() to adapt to changed signature.

from 5.0 into the 5.1.26 release clone.

so Apple's internal name ("darwin9") must be translated to ours ("osx10.5").

Bug#35658 (An empty binary value leads to mysqld crash)
  
Before this fix, the following token
  b''
caused the parser to crash when reading the binary value from the empty string.
The crash was caused by:
  ptr+= max_length - 1;
because max_length is unsigned and was 0, causing an overflow.
  
With this fix, an empty binary literal b'' is parsed as a binary value 0,
in Item_bin_string.

mysql-test/r/varbinary.result:
  Bug#35658 (An empty binary value leads to mysqld crash)
mysql-test/t/varbinary.test:
  Bug#35658 (An empty binary value leads to mysqld crash)
sql/item.cc:
  Bug#35658 (An empty binary value leads to mysqld crash)

Remove unnecessary and incorrect code that tried to pull delimiter commands out of the
middle of statements

client/mysql.cc:
  Bug#33812: remove incorrect code
mysql-test/r/mysql.result:
  Bug#33812: test case
mysql-test/t/mysql_delimiter.sql:
  Bug#33812: test case

                        
      The crash appeared to be a result of allocating an instance of Discrete_interval 
      automatically that that was referred in out-of-declaration scope.
                        
      Fixed with correcting backing up and restoring scheme of
      auto_inc_intervals_forced, introduced by bug#33029, by means of shallow copying;
      added simulation code that forces executing those fixes of the former bug that
      targeted at master-and-slave having incompatible bug#33029-prone versions.

mysql-test/suite/bugs/r/rpl_bug33029.result:
  new results file
mysql-test/suite/bugs/t/rpl_bug33029.test:
  test merely checks no crash happens on slave.
sql/slave.cc:
  forcing to execute special logics implemented for bug#33029 if
  simulate_bug33029 the debug option is set.
sql/sql_class.cc:
  swaps of backed and the actual auto_inc_intervals_forced basing on shallow coping.
sql/structs.h:
  Removing the deep _copy() and methods associated with it;
  adding methods to Discrete_intervals_list:
      
  private `=', copy constructor to prevent using;
  private set_members();
  public  copy_shallow(), swap(), get_{head, tail, current}();
          empty_no_free() through set_members().

On a slow environment like valgrind the test is vulnerable
because it does not check if slave has stopped at time
of the new session is requested `start slave;' -- disabling
test till it is fixed.

mysql-test/suite/rpl/t/disabled.def:
  disable rpl_server_id1 until test is fixed.

ha_innodb.so was incorrectly installed in the lib/mysql
directory rather than in lib/mysql/plugin.

Amending CS for 31736.

storage/innobase/Makefile.am:
  Install innobase to plugin-dir, not lib-dir.

MySQL client crashed if no input was passed to it.

client/mysql.cc:
  Check if there's any data before reading it!

The value of JOIN::tables must be set to 0 when there
is no matching min/max row.

mysql-test/r/subselect.result:
  Added a test case for bug #37004.
mysql-test/t/subselect.test:
  Added a test case for bug #37004.

This change was committed to the 5.1.25 release clone, but never
made it to the mysql-5.1 BK tree.  I'm committing it to mysql-5.1
bzr now.

make_binary_distribution.sh got clobbered by the 5.0 version during a merge.
This caused a few packaging problems, including message files put in the wrong
place and some missing files.  Fix is just to revert back to the 5.1 version
from before the merge.

Problem introduced in
ChangeSet 1.2606.2.1 2008/05/13 15:56:07 kent@kent-amd64.(none)

This change was made in the 5.1.25 release clone in BK, but never made it to the main mysql-5.1 BK tree.  I am adding it to mysql-5.1 bzr.

mysql-test/r/federated_disabled.result:
  Bug#37069 (5.0): test case
mysql-test/t/federated_disabled-master.opt:
  Bug#37069 (5.0): test case
mysql-test/t/federated_disabled.test:
  Bug#37069 (5.0): test case

The federated storage engine is now disabled by default.
mysql-test-run.pl is updated to enable it whenever it's required and available.

mysql-test/lib/mtr_cases.pl:
  Bug#37069: mysql-test-run.pl automatically enables federated 
  for federated related tests
sql/sql_plugin.cc:
  Bug#37069: federated is disabled by default

and table DDL changed after PREPARE" to pass in embedded mode.


mysql-test/r/ps.result:
  Update results (Bug#27430)
mysql-test/r/ps_ddl.result:
  Update results (Bug#27430)
mysql-test/t/ps.test:
  Add a test case for Bug#27430. ps.test is not run in --embedded-server,
  thus it now contains the part of the test for Bug#27430 that
  doesn't work in embedded server.
mysql-test/t/ps_ddl.test:
  Move a part of the test for Bug#27430 that doesn't work
  in embedded server to ps.test, that includes not_embedded.inc.

the local tree contains a fix for 
Bug#32748 "Inconsistent handling of assignments to 
general_log_file/slow_query_log_file",
which changes output of a number of tests.


mysql-test/r/general_log_file_basic.result:
  Update results (Bug#32748)
mysql-test/r/log_output_basic.result:
  Update the test with results of the fix for Bug#32748
mysql-test/r/slow_query_log_file_basic.result:
  Update the test with results of the fix for Bug#32748
mysql-test/t/general_log_file_basic.test:
  Adjust to take into account the fix for Bug#32748 
  (a port from 6.0-bugteam)
mysql-test/t/log_output_basic.test:
  Adjust to take into account the fix for Bug#32748 
  (a port from 6.0-bugteam)
mysql-test/t/slow_query_log_file_basic.test:
  Adjust to take into account the fix for Bug#32748 
  (a port from 6.0-bugteam)
tests/mysql_client_test.c:
  Fix a compilation warning.

after PREPARE"
Update test results after a merge with the main tree: the new minimum for 
the table definition cache is 256.


mysql-test/r/table_definition_cache_basic.result:
  Update test results: the new minimum for table definition cache is 256

 PREPARE", review fixes:
- make the patch follow the specification of WL#4166 and remove  
the new error that was originally introduced.
Now the client never gets an error from reprepare, unless it failed.
I.e. even if the statement at hand returns a completely different
result set, this is not considered a server error.
The C API library, that can not handle this situation, was modified to
return a client error.
Added additional test coverage.


include/errmsg.h:
  Add a new client side error: now when we automatically
  reprepare a statement, the new result set may contain a different
  number of columns.
include/mysql_com.h:
  Add a new server status to be sent to the client if the 
  number of columns in the result set is different.
libmysql/errmsg.c:
  Add a new error message.
libmysql/libmysql.c:
  Make the client library robust against a result set that
  contains a different number of columns from prepare time.
  Previously that could never happen, and we simply had an assert.
  That means in particular that all clients are advised to upgrade
  with transition to 5.1, if they are using prepared statements C API.
  Make mysql_stmt_store_result() and mysql_stmt_execute() robust against 
  "broken" statement handles (those that have an error).
sql/sql_parse.cc:
  Clear transient server status flags at start of statement more 
  systematically.
sql/share/errmsg.txt:
  Remove an error that is unused and is not part of any public release.
sql/sql_prepare.cc:
  Instead of returning an error in case the number of result set columns
  has changed, simply update the client in server status.
  That will allow modern clients automatically recover from an error.
tests/mysql_client_test.c:
  Add additional coverage to the cases when the number of result
  set columns changed as a result of reprepare.
  Cover conversion and truncation of result set columns.

into  bodhi.(none):/opt/local/work/mysql-5.1-27430


Makefile.am:
  Auto merged
include/my_global.h:
  Auto merged
mysql-test/include/mix1.inc:
  Auto merged
sql/item.cc:
  Auto merged
sql/my_decimal.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
libmysqld/CMakeLists.txt:
  Manual merge.
libmysqld/lib_sql.cc:
  Manual merge.
mysql-test/t/disabled.def:
  Manual merge.

into  bodhi.(none):/opt/local/work/mysql-5.1-27430


sql/sql_base.cc:
  Manual merge.

PREPARE": rename members, methods, classes to follow the spec 
(a code review request)


sql/mysql_priv.h:
  enum_metadata_type -> enum_table_ref_type
sql/sp_head.cc:
  Metadata_version_observer -> Reprepare_observer
sql/sql_base.cc:
  metadata -> table_ref
sql/sql_class.cc:
  Replace an abstract interface with a concrete implementation.
sql/sql_class.h:
  enum_metadata_type -> enum_table_ref_type
sql/sql_prepare.cc:
  Move implementation of Execute_observer to sql_class.cc and
  rename the class to Reprepare_observer.
  Use getters instead of direct access to the members.
sql/table.h:
  metadata -> table_ref

Add test target to the makefile that will cause all
statements to be re-prepared before execution.


Makefile.am:
  Add test-reprepare target. In combination with the
  --ps-protocol this will cause that every statement
  in the test suite be re-prepared before execution.
sql/sql_base.cc:
  Re-prepare each statement before execution.

into  mysql.com:/d2/hf/mysql-5.1-bugteam

  rpl_innodb_bug28430 disabled


mysql-test/suite/rpl/t/disabled.def:
  rpl_innodb_bug28430 disabled

into  host.loc:/work/bk/5.1-bugteam


sql/sql_update.cc:
  Auto merged

into  host.loc:/work/bk/5.0-bugteam

                 first row or fails with an error:
  ERROR 1022 (23000): Can't write; duplicate key in table ''

The server uses intermediate temporary table to store updated
row data.  The first column of this table contains rowid.
Current server implementation doesn't reset NULL flag of that
column even if the server fills a column with rowid.
To keep each rowid unique, there is an unique index.
An insertion into an unique index takes into account NULL
flag of key value and ignores real data if NULL flag is set.
So, insertion of actually different rowids may lead to two
kind of problems.  Visible effect of each of these problems
depends on an initial engine type of temporary table:

1. If multiupdate initially creates temporary table as
a MyISAM table (a table contains blob columns, and the
create_tmp_table function assumes, that this table is
large), it inserts only one single row and updates
only rows with one corresponding rowid. Other rows are
silently ignored. 

2. If multiupdate initially creates MEMORY temporary
table, fills it with data and reaches size limit for
MEMORY tables (max_heap_table_size), multiupdate
converts MEMORY table into MyISAM table and fails
with an error:
  ERROR 1022 (23000): Can't write; duplicate key in table ''


Multiupdate has been fixed to update the NULL flag of
temporary table rowid columns.



mysql-test/r/multi_update_tiny_hash.result:
  Added test case for bug#36676.
mysql-test/t/multi_update_tiny_hash-master.opt:
  Added test case for bug#36676.
mysql-test/t/multi_update_tiny_hash.test:
  Added test case for bug#36676.
sql/sql_update.cc:
  Fixed bug#36676: multiupdate using LEFT JOIN updates only
                   first row or fails with an error:
    ERROR 1022 (23000): Can't write; duplicate key in table ''
  
  The multi_update::send_data method has been modified to reset null bits of
  fields containing rowids.

into  magare.gmz:/home/kgeorge/mysql/work/merge-5.1-bugteam


sql/handler.cc:
  Auto merged
configure.in:
  merge 5.0-bugteam to 5.1-bugteam

(Bug#27430)


sql/sql_prepare.cc:
  Fix a simple coding mistake.

"Crash in subquery code when in PS and table DDL changed after PREPARE"


include/my_sys.h:
  Add two new flags for my_error(). These flags help parameterize
  behavoiur of my_message_sql()
sql/item.cc:
  Update comments.
  Fix a typo in Item_param::set_param_type_and_swap_value()
sql/mysqld.cc:
  Implement two additional flags for my_error():
   - if ME_NO_SP_HANDLER is specified, ignore stored procedure continue/
      exit handlers
   - if ME_NO_WARNING_FOR_ERROR is specified, do not push warning
sql/sql_base.cc:
  Update comments.
  Rename a few methods.
sql/sql_class.h:
  Update and improve comments.
sql/sql_prepare.cc:
  Update comments.
  Style changes.
sql/table.h:
  Update comments.
  Style changes.
  Rename a few methods.
tests/mysql_client_test.c:
  Zero the bind array, to follow C API requirements.

temporary variables of 'long' types were used to store ulong values,
that causes init_key_cache to receive distorted parameters


sql/handler.cc:
  Bug #36705 key_buffer_size of >= 2G allocates all availabel virtual memory on 64-bit wondo.
  
  types of temporary variables changed to match init_key_cache() parameters