Don't assume that a word of n bytes can match a word of
at most n * charset->mbmaxlen bytes, always go for the worst.

MDEV-11171 Assertion `m_cpp_buf <= ptr && ptr <= m_cpp_buf + m_buf_length' failed in Lex_input_stream::body_utf8_append(const char*, const char*)

The flag TABLE_LIST::fill_me must be reset to false at the prepare
phase for any materialized derived table used in the executed query.
Otherwise if the optimizer decides to generate a key for such a table
it is generated only for the first execution of the query.

Skip  permission for data directory for LogonUser, if installation
runs by one of the service accounts (determined from their well-known SID).
There is no real LogonUser in this case.

- new location of signtool
- silence a nonsensical warning from stl  header
(complain about noexcept() function attribute, if /EHsc is not set)

mysqldump/mysql_install_db.exe fail

The bug is described in
https://connect.microsoft.com/VisualStudio/Feedback/Details/1902345

When reading from a pipe in text mode, using CRT function such as fread(),
some newlines may be lost. Workaround is to use binary mode on reading side
and if necessary, replace \r\n with \n.

Patch provided by Honza Horak

don't let identifiers with new lines to break a comment

pass them through as is

* use proper sql quoting rules for USE, while preserving
  as much of historical behavior as possible
* short commands (\u) behave as before

when they're not needed anymore. Helps when
daemonizing it from mysql.init

              RESTRICTED IN ALL GA RELEASES

Back port of WL#6782 to 5.5 and 5.6. This also includes
back port of Bug#20771331, Bug#20741572 and Bug#20770671.
Bug#24695274 and Bug#24679907 are also handled along with
this.

Also add fallback version string for unknown future versions.

Ensure atomic appends to the error log by using CreateFile with
FILE_APPEND_DATA flag to open error log file (both MTR and server)

fix PLUGIN_VAR_NOSYSVAR | PLUGIN_VAR_NOCMDOPT plugin thdvars to work.
use that for server_audit_loc_info

my_offsetof() returns a difference of two pointers, it must use the
appropriate return type (my_ptrdiff_t, not size_t)

Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

it was supposed to be used in command-line tools only.
Different fix for 4e547386:

Bug#24388746: PRIVILEGE ESCALATION AND RACE CONDITION USING CREATE TABLE

different fix for a63a250d:

BUG#23509275 :DBUG_PRINT in THD::decide_logging_format prints incorrectly, access out-of-bound

different fix for 07a33cdc:

Bug #23296299 : HANDLE_FATAL_SIGNAL (SIG=11) IN MY_TOSORT_UTF32

80% reverted

Correct context chain made to allow outer fields pullout.

Post push fix: Solaris 10 /bin/sh don't understand $().

[This is the 5.5/5.6 version of the bugfix].

The problem was that it was possible to write log files ending
in .ini/.cnf that later could be parsed as an options file.
This made it possible for users to specify startup options
without the permissions to do so.

This patch fixes the problem by disallowing general query log
and slow query log to be written to files ending in .ini and .cnf.