This crash happens in rather exotic case when we try to run 
SELECT DISTINCT some_func(SUM(some_field)) GROUP BY another_field;
on a table with single row.
Optimizer marks this table as const, sets group=NULL (with remove_const)
thus, create_tmp_table makes mistake collecting columns for temporary table
and then crashes because the field_count gets less than hidden_columns_count.

into mysql.com:/home/mysql_src/mysql-4.0

Safe parenthesis.

into mysql.com:/space/my/mysql-4.0-build

   problem on Windows/cygwin (BUG#668)

  Track an assertion failure reported on the mailing list June 18th, 2003

 - fixed a typo

into mysql.com:/space/my/mysql-4.0-build

  Add forgotten mutex_enter()

  Add forgotten mtr_commit()

  Fix error in previous push

  Fix bug: InnoDB could print that it cannot find a clustered index record if an update undo, purge, and a consistent read coincided, in rare cases it might also have returned a wrong row in a query

into mysql.com:/home/mysql_src/mysql-4.0

with 'head').
Test fix (this sync_with_master was nonsense).
Now all tests pass in 4.0 in autobuild.

into mysql.com:/home/mysql_src/mysql-4.0

More messages.
Testcase for bug 651.

  Cleanup
ha_innodb.cc, data0type.h:
  Make sure non-latin1 users can downgrade from 4.0.14 to an earlier version if they have not created DATA_BLOB column prefix indexes

  Cleanup; remove compiler warning on Windows

into mysql.com:/home/mysql_src/mysql-4.0

thd->enter_cond() and exit_cond(), so that the I/O thread accepts to stop
when it's waiting for relay log space.
Reset ignore_log_space_limit to 0 when the SQL thread terminates.

  Merge InnoDB-4.0.14: SAVEPOINT now implemented; InnoDB now accepts also column prefix keys; crashing bug in ON UPDATE CASCADE fixed; page checksum formula fixed

into mysql.com:/home/mysql_src/mysql-4.0

Could not add a testcase for this: if the test goes into a MASTER_POS_WAIT, it waits
until this terminates (even doing "connection other_con" to launch "stop slave" is blocked).
- In MASTER_POS_WAIT() don't test if the I/O slave is running, but if the SQL thread
is running.
- Some DBUG info for this bugfix.

if one is running many mysqlds through mysqld_multi, for example.
Without this option, on Linux one mysqld_safe process may kill
other mysqlds as well, if started using the same binary and path.

 - Added missing function name in checking for sem_init in posix4 libs on
   Solaris

into narttu.mysql.fi:/my/mysql-4.0

   define a different niceness level in my.cnf (Bug #627)

into mysql.com:/space/my/mysql-4.0-build