Change error code to HA_ERR_ROW_IS_REFERENCED if we cannot DROP a parent table referenced by a FOREIGN KEY constraint; this error number is less misleading than the previous value HA_ERR_CANNOT_ADD_FOREIGN, but misleading still; we should introduce to 5.0 a proper MySQL error code

into hundin.mysql.fi:/home/heikki/mysql-4.0

into mysql.com:/mnt/tmp/mysql-4.0-bug-myisampack

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

when one connection had done FLUSH TABLES WITH READ LOCK, some updates, and then COMMIT,
it was accepted but my_error() was called and so, while client got no error, error was logged in binlog.
We now don't call my_error() in this case; we assume the connection know what it does.
This problem was specific to 4.0.21. The change is needed to make replication work with existing versions of innobackup.

  Fix bug #5960: if one updated a column so that its size changed, or updated it to an externally stored (TEXT or BLOB) value, then ANOTHER externally stored column would show up as 512 bytes of good data + 20 bytes of garbage in a consistent read that fetched the old version of the row

(Fixed this by backporting some logic from 4.1)

in the error monitor thread.  (Bug #5898)

into build.mysql.com:/users/rburnett/mysql-4.0

into gw.mysql.r18.ru:/usr/home/ram/work/4.0.b5733

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

Cleaned up patch for checking locks for multi-table updates

into deer.(none):/home/hf/work/mysql-4.0

Recusive part leads to stack overflow

into hundin.mysql.fi:/home/marko/k/mysql-4.0

into hundin.mysql.fi:/home/marko/k/mysql-4.0

into sinisa.nasamreza.org:/mnt/work/mysql-4.0

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

into mysql.com:/home/mydev/mysql-4.0-bug4286

Original code was checking ! unix_socket for local_file flag.  This doesn't work and so was removed.  Now
to import a local file, you must use the --local command line option.

mysqlimport.c:
  Removed check of unix_socket to set local_file

Bug #5492 
"set @@session.read_rnd_buffer_size=33554432" crashes server on query

1. added warning comments for uint3korr (need one more byte allocated)
2. unsigned long in uint3korr was replaced by unsigned int to 
   avoid problems on 64-bits platforms
3. shorten warning comments in init_rr_cache in sql/records.cc

into eagle.mysql.r18.ru:/home/vva/work/BUG_5492/mysql-4.0

into hundin.mysql.fi:/home/marko/k/mysql-4.0

into ltantony.rdg.cyberkinetica.homeunix.net:/usr/home/antony/work/bug4118

into ltantony.rdg.cyberkinetica.homeunix.net:/usr/home/antony/work/bug4118

  Ensures that WRITE lock is not obtained on all tables referenced.

  A fix (bug #5733: Table handler error with self-join multi-table DELETE).
records.cc:
  A fix (bug #5733: Table handler error with self-join multi-table DELETE).

* If at least one of indexes is disabled, use data file size as an estimate 
  for key file size.
* Added handling for joined tables.

into build.mysql.com:/users/rburnett/mysql-4.0

into mysql.com:/home/dlenev/src/mysql-4.0-bg4131-3

using GROUP BY"
Now we are setting Field_timestamp::field_length to 19 in open_table()
if we are in new mode (and we are restoring it back when we are coming
back to normal mode). This also should solve potential problems with
some of LOAD DATA INFILE and SELECT * INTO in this mode.

(part of BUG#5379)

old options for include path and library settings still
work for backwards compatibility
(fix for BUG #5494)

sql_show.cc:
  Made change suggested by Serge. REmoved else in mysql_find_files so symlink files fall through to the wildcard check