String comparison with utf8_bin collation is case sensitive.
Hence "DELIMITER" did not match with "delimiter".
The delimiter command matching now uses my_charset_latin1.
Added version_source_revision server "variable", for the git revision.
Also , mysql -V will show git revision.
"make dist" will now pack source_revision.h into the source package.
DESCRIPTION:
===========
The bug is related to incorrect parsing of SQL queries
when typed in on the CLI. The incorrect parsing can
result in unexpected results.
ANALYSIS:
========
The scenarios mainly happens for identifier names
with a typical combination of backslashes and backticks.
The incorrect parsing can either result in executing
additional queries or can result in query truncation.
This can impact mysqldump as well.
FIX:
===
The fix makes sure that such identifier names are
correctly parsed and a proper query is sent to the
server for execution.
(cherry picked from commit 31a372aa1c2b93dc75267d1f05a7f7fca6080dc0)
field_names[x][y] is a pointer
client/mysql.cc: In function 'void build_completion_hash(bool, bool)':
client/mysql.cc:2855:37: error: invalid conversion from 'char' to 'char*' [-fpermissive]
field_names[i][num_fields*2]= '\0';
Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
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.
