Post-pushbuild fix

Added a purecov comment and a test for coverage of parallel
enable keys.

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-engines_with_main

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-engines_with_main

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.0-engines

  Use proper variable for test.

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-4.1-engines

RENAME TABLE against a table with DATA/INDEX DIRECTORY overwrites
the file to which the symlink points.

This is security issue, because it is possible to create a table with
some name in some non-system database and set DATA/INDEX DIRECTORY
to mysql system database. Renaming this table to one of mysql system
tables (e.g. user, host) would overwrite the system table.

Return an error when the file to which the symlink points exist.

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

Disabling and enabling indexes on a non-empty table grows the
index file.

Disabling indexes just sets a flag per non-unique index and does not
free the index blocks of the affected indexes. Re-enabling indexes
creates new indexes with new blocks. The old blocks remain unused
in the index file.

Fixed by dropping and re-creating all indexes if non-empty disabled
indexes exist when enabling indexes. Dropping all indexes resets
the internal end-of-file marker to the end of the index file header.
It also clears the root block pointers of every index and clears the
deleted blocks chains. This way all blocks are declared as free.

into  mysql.com:/home/svoj/devel/mysql/BUG31950/mysql-5.0-engines

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge

Comment sign of -- at line begin in test files lead to warnings
from mysqltest.
  
Changed -- to #.

Comment sign of -- at line begin in test files lead to warnings
from mysqltest.
  
Changed -- to #.

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb-merge

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb-merge

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-4.1-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

Preliminarily disabled test case

into  mysql.com:/home/svoj/devel/mysql/BUG11392/mysql-5.0-engines

into  stella.local:/home2/mydev/mysql-4.1-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

Comment sign of -- at line begin in test files lead to warnings
from mysqltest.

Changed -- to #.

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge

            fulltext index

Having a table with broken multibyte characters may cause fulltext
parser dead-loop.

Since normally it is not possible to insert broken multibyte sequence
into a table, this problem may arise only if table is damaged.

Affected statements are:
- CHECK/REPAIR against damaged table with fulltext index;
- boolean mode phrase search against damaged table with or
  without fulltext inex;
- boolean mode searches without index;
- nlq searches.

No test case for this fix. Affects 5.0 only.

Fix uninitialized variable causing failures for some interpreted update
operations on gcc 4.2.1.

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

Dropping users causes huge increase in memory usage because field values were
allocated on the server memory root for temporary usage but never deallocated.

This patch changes the target memory root to be that of the thread handler
instead since this root is cleared between each statement.

into  stella.local:/home2/mydev/mysql-4.1-axmrg

  Ensure use of libedit "config.h" by adding "-I. -I$(srcdir)" to DEFS,
  work around for problem with automake 1.10 (bug#24809)

into  pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0-build