As svoj points out, my_timer_microseconds uses gettimeofday which is
affected by "discontinuous jumps in the system time", according to
man.
This patch changes to use microsecond_interval_timer which is "not
perfect, but is less affected by these jumps", and also does not
require an include of my_rdtsc.h header.
https://github.com/MariaDB/server/pull/332#discussion_r114708923
based upon: d5e4642807
MariaDB [test]> select sleep(0.123);
+--------------+
| sleep(0.123) |
+--------------+
| 0 |
+--------------+
1 row in set (0.123 sec)
"More exact timing for mysql client based on my_timer_microseconds"
Based on suggestion from @grooverdan on https://github.com/mysql/mysql-server/pull/112
This patch is slightly bigger because the original did not preserve the
return type of my_timer_microseconds and this patch does.
(my_timer_microseconds returns ulonglong, not simply ulong)
Also I believe the correct place to do the division of microseconds to
seconds is better in the caller of nice_time because nice_time takes a
"double sec" param, so we should convert before calling; the other caller
of nice_time does not call with microseconds.
When there are quotes in the USE statement, the mysql client does
not correctly escape them.
The USE statement is processed line by line from the client's parser,
and cannot handle multi-line commands as the server.
The fix is to escape the USE parameters whenever quotes are used.
CLIENT (CONTRIBUTION)
DESCRIPTION:
============
Binary data should be printed as hex in the mysql client
when the option binary-as-hex is enabled.
ANALYSIS:
=========
The fix deals only with mysql command line client.
It does not change, at all, the data sent to the
applications. Printing binary data as hex also
allows to use the output in the where clause
of the query.
FIX:
====
A new option 'binary-as-hex' is introduced to print the
binary contents as hex in the mysql client. The option
is disabled by default. When the option is enabled, we
convert the binary data to hex before printing the
contents irrespective of whether it is in tabular,
xml or html format.
MYSQL_OPT_SSL_MODE option introduced.
It is set in case of --ssl-mode=REQUIRED and permits only SSL connection.
(cherry picked from commit 3b2d28578c526f347f5cfe763681eff365731f99)
An addition to original patch:
- use FN_REFLEN instead of HOST_NAME_MAX (the latter can be undefined)
- avoid calling gethostname() on every prompt construction by caching it
Introduce `\H` option which behaves mostly like `\h`. The only exception is
when the client connects to the server hosted on localhost. In this case, the
hostname will be used instead.
mysql.cc:
Unlike the main MYSQL structure, kill_mysql did not have MYSQL_OPT_PROTOCOL set.
Move all connection-related settings to a separate function and
use it both for the main MYSQL and for kill_mysql.
cherry-pick f1daf9ce from 10.0 branch
-------------------------------------
Fix build failures caused by new C runtime library
- isnan, snprintf, struct timespec are now defined, attempt to
redefine them leads
- P_tmpdir, tzname are no more defined
- lfind() and lsearch() in lf_hash.c had to be renamed, declaration
conflicts with some C runtime functions with the same name declared in
a header included by stdlib.h
Also fix couple of annoying warnings :
- remove #define NOMINMAX from config.h to avoid "redefined" compiler
warnings(NOMINMAX is already in compile flags)
- disable incremental linker in Debug as well (feature not used much
and compiler crashes often)
Also simplify package building with Wix, require Wix 3.9 or later
(VS2015 is not compatible with old Wix 3.5/3.6)
