some platforms

Since the behavior of write(fd, buf, 0) is undefined, it may fail with
EFAULT on some architectures when buf == NULL. The error was propagated
up to a caller, since my_write() code did not handle it properly.

Fixed by checking the 'number of bytes' argument in my_write() and
returning before calling the write() system call when there is nothing
to write.

into  polly.(none):/home/kaa/src/maint/mysql-5.0-maint

(compiler issue ?)

Problem:

Improper compile-time flags on AIX prevented use of files > 2 GB. This
resulted in Max_data_length being truncated to 2 GB by MyISAM code.

Solution:

Reverted large-file changes from the fix for bug10776. We need to define
_LARGE_FILES on AIX to have support for files > 2 GB.

 Since _LARGE_FILE_API is incompatible with _LARGE_FILES and may be
automatically defined by including standards.h, we also need a
workaround to avoid this conflict.

into  sin.intern.azundris.com:/home/tnurnberg/30821/50-30821

Options to mysqld were not processed correctly because switch statement
was missing some "break"s. CS adds them.

No test case; would require .opt file and server restart. Manually tested.

into  polly.(none):/home/kaa/src/maint/mysql-5.0-maint

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50

Introduced in mark_transaction_to_rollback(), part of fix for bug 24989;
fix is to check thd for NULL before using it.

into  polly.(none):/home/kaa/src/maint/mysql-5.0-maint

into  polly.(none):/home/kaa/src/maint/mysql-5.0-maint

into  polly.(none):/home/kaa/src/maint/mysql-4.1-maint

into  polly.(none):/home/kaa/src/maint/bug28878/my50-bug28878

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50

as PS protocol gives slightly different metadata.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint

into  mysql.com:/home/ram/work/b31249/b31249.5.0

bitmap_is_set(table->write_set, fiel

Problem: creating a temporary table we allocate the group buffer if needed
followed by table bitmaps (see create_tmp_table()). Reserving less memory for 
the group buffer than actually needed (used) for values retrieval may lead 
to overlapping with followed bitmaps in the memory pool that in turn leads 
to unpredictable consequences.

As we use Item->max_length sometimes to calculate group buffer size,
it must be set to proper value. In this particular case 
Item_datetime_typecast::max_length is too small.

Another problem is that we use max_length to calculate the group buffer
key length for items represented as DATE/TIME fields which is superfluous.

Fix: set Item_datetime_typecast::max_length properly,
accurately calculate the group buffer key length for items 
represented as DATE/TIME fields in the buffer.

into  alf.(none):/src/bug28774/my50-bug28774

doesn't clean them up
- Make sure to cleanup temporary files after use.

into  sin.intern.azundris.com:/home/tnurnberg/31253/50-31253

into  sin.intern.azundris.com:/home/tnurnberg/19828/50-19828

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.0-maint

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.0-maint

Our web server has been restructured several times, and references
to it in our source code has stayed the same.  This patch from Paul
DuBois updates all URLs to modern semantics.

Write .reject file to r/ if it's writable else use opt_logdir 

 - "mysqld --verbose --help" need to be started in a writable directory 

convert(<invalid time>, datetime) in WHERE caused crash as function
returned (void*)NULL, but did not flag SQL NULL. It does now.

into  sin.intern.azundris.com:/home/tnurnberg/31227/50-31227

Reserve the space for the leading 0 (before the decimal point) in DECIMAL(a,a) ZEROFILL.

into  sita.local:/Users/tsmith/m/bk/maint/50

into  trift2.:/MySQL/M50/push-5.0

into  sin.intern.azundris.com:/home/tnurnberg/30444/50-30444

into  sin.intern.azundris.com:/home/tnurnberg/30444/41-30444

Bug#28878: InnoDB tables with UTF8 character set and indexes cause  wrong result for DML
When making key reference buffers over CHAR fields whitespace (0x20) must be used to fill in the remaining space in the field's buffer. This is what Field_string::store() does. Fixed Field_string::get_key_image() to do the same.

into  production.mysql.com:/usersnfs/jperkin/bk/bug-27692/5.0