Fix an issue in Single_line_formatting_helper: flush_on_one_line()
didn't clean up the buffered items which could cause them to be
printed for the second time.

This can't be ever observed by a user (see MDEV text for details).

wsrep_gtid_domain_id was incorrectly being parsed and stored
as a signed long number on the joiner node.

/var/run/mysqld must be created before wsrep recovery.

Update ExecStartPre scripts to not fail if 'galera_recovery'
script is not available.

MDEV-10412 fix WITH_ASAN option for 10.1

Disabled NoNewPrivileges until SELinux policy is fixed.

In the AFTER_SYNC case, semi-sync was taking the binlog file name from
the wrong place, so around binlog rotation it could be using the new
name with a position belonging to the previous binlog file name.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

Remove unnecessary semicolon

THD's statement transaction handle (st_transactions::stmt)
should also be looked for registered htons while serving a
request to abort a transaction.

- Update test result (checked)

- Fixed the test
- Improved comment for wsrep_drupal_282555_workaround

During wsrep position recovery, galera_recovery.sh script
redirected mysqld's error log to a temporary file in order
to find the start position. This, however, will not work
if --log-error is configured for the server.

Fixed by using --log-error in command line instead of
redirection.

[Patch contributed by Philippe MARASSE]

The problem was caused by a merged semi-join, which contained a non-merged
semi-join, which used references to the top-level query in the left_expr.

When moving non-merged semi-join from the subquery to its parent, do not
forget to call fix_after_pullout for its Item_subselect. We need to do
that specifically, because non-merged semi-joins do not have their
IN-equality in the WHERE clause at this stage.

Do not set 'optimized' flag until whole optimization procedure is finished.

* MDEV-10294: Put testname into environment as MTR_TEST_NAME during MTR

* MDEV-10294: restructure mtr to allow --valgrind-option=--tool=XXX

* MDEV-10294: mtr valgrind - supressions all tools + feedback

Fixed threadpool_add_connection to use thd_prepare_connection()
to match thread-per-conection flow.

set the 'typelib' member for plugin boolean sysvars

don't call strlen() in the loop

a test case for a broken vcols behavior with different
charsets. this is fixed in 10.2

TABLE_SHARE::init_from_binary_frm_image has a rule: if an index
has a partially-covered column (like in "KEY(col(N))" ), then dont
provide "Extended Keys" feature for this index.

The problem was that due to coding error Extended Keys feature was
disabled for *ALL* subsequent indexes. Fixed the error.

The problem was introduced by 1859caf6:
  MDEV-10175: range optimizer calls records_in_range() for full extended keys

  Make the range optimizer not call records_in_range() when it would
  not give any benefit.

that patch used an incorrect way to check for full extended key. Now fixing
the check.

Add ProtectSystem=full, NoNewPrivileges=true, PrivateDevices=true, and ProtectHome=true to the systemd units.

MDEV-10211 : fix ssl test not to use specific value of ssl_cipher, as it can change between different openssl/yassl version

add a test case