CONNECTION_ID() was implemented as a constant Item, i.e. an instance of
Item_static_int_func class holding value computed at creation time.
Since Items are created on parsing, and trigger statements are parsed
on table open, the first connection to open a particular table would
effectively set its own CONNECTION_ID() inside trigger statements for
that table.

Re-implement CONNECTION_ID() as a class derived from Item_int_func, and
compute connection_id on every call to fix_fields().

into  mysql.com:/extern/mysql/5.0/generic/mysql-5.0-runtime

Also added comments, and fixing some coding style (mostly in comments too).
There are no functional changes, so no tests or documentation needed.
(This was originally part of a bugfix, but it was decided to not include this
 in that patch; instead it's done separately.)

After FLUSH STATUS max_used_connections was reset to 0, and haven't
been updated while cached threads were reused, until the moment a new
thread was created.

The first suggested fix from original bug report was implemented:

  a) On flushing the status, set max_used_connections to
  threads_connected, not to 0.

  b) Check if it is necessary to increment max_used_connections when
  taking a thread from the cache as well as when creating new threads

  Distribute mysql-test-run.pl

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new

  Changed web address order.mysql.com to shop.mysql.com

  Install Perl mysql-test-run into test directory

  Let "make install" install mysql-test-run.pl
mysql.spec.sh:
  Set $LDFLAGS from $MYSQL_BUILD_LDFLAGS (bug#16662)

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new

  Typo (bug#17167)

  Use CPPFLAGS when testing to link "libz" found in --with-zlib-dir=,
  and search the given include directory first (bug#18369)

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

  Use CPPFLAGS when testing to link "libz" found in --with-zlib-dir=,
  and search the given include directory first (bug#18369)

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

into  mysql.com:/home/alexi/innodb/mysql-5.0-merged

  Set MYSQL_SERVER_SUFFIX from build scripts, not hard
  code it into Visual Studio project files, bug#15974

  Enable automake to determine dependency on yaSSL, by explicitly
  listing the .la files in Makefile.am, instead of using
  'yassl_libs_with_path', bug#18273

into  mysql.com:/home/alexi/innodb/mysql-5.0-merged

 Fixed BUG#15650: DELETE with LEFT JOIN crashes server
 with innodb_locks_unsafe_for_binlog.
 Fixed compilation problem with non-C99 compilers
 in btr0sea.c

into  mysql.com:/home/timka/mysql/src/5.0-bug-16710

The bug was due to a missed case in the detection of whether an index
can be used for loose scan. More precisely, the range optimizer chose
to use loose index scan for queries for which the condition(s) over
an index key part could not be pushed to the index together with the
loose scan.

As a result, loose index scan was selecting the first row in the
index with a given GROUP BY prefix, and was applying the WHERE
clause after that, while it should have inspected all rows with
the given prefix, and apply the WHERE clause to all of them.

The fix detects and skips such cases.

  Use  when testing if shared library exists, bug#16332

into  rurik.mysql.com:/home/igor/dev/mysql-5.0-0

into sunlight.local:/local_work/15560-bug-5.0-mysql

  After merge fix for bug#15560
item_sum.h:
   After merge fix for bug#15560

into  mysql.com:/usr/home/bar/mysql-5.0

into sunlight.local:/local_work/15560-bug-4.1-mysql

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

  Added BTR_CHUNK_SIZE, removed 'chunk_size' declared after declaration block

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