There was no way to return an error from the client library
if no MYSQL connections was established.
So here i added variables to store that king of errors and
made functions like mysql_error(NULL) to return these.
Nothing was in the command-line dictionary, because of the wrong
order of instructions when populating it.
This is a smaller, less optimistic patch that both fixes a bug and
refreshes the list of keywords that the command-line library (e.g.,
readline) can use to expand typed commands. Now, read from the
command list /after/ we free the list, not before.
The best way is to read the keywords from the lexer code, but that
doesn't work everywhere yet. Grr.
running queries
Bug#33976: buffer overflow of variable time_buff in function com_go()
An internal buffer was too short. Overextending could smash the
stack on some architectures and cause SEGVs. This is not a problem
that could be exploited to run arbitrary code.
To fix, I expanded one buffer to cover all the size that could be
written to (we know the abolute max).
Bug#25347: mysqlcheck -A -r doesn't repair table marked as crashed
mysqlcheck tests nullness of the engine type to know whether the
"table" is a view or not. That also falsely catches tables that
are severly damaged.
Instead, use SHOW FULL TABLES to test whether a "table" is a view
or not.
(Don't add new function. Instead, get original data a smarter way.)
Make it safe for use against databases before when views appeared.
Default values of variables were not subject to upper/lower bounds
and step, while setting variables was. Bounds and step are also
applied to defaults now; defaults are corrected quietly, values
given by the user are corrected, and a correction-warning is thrown
as needed. Lastly, very large values could wrap around, starting
from 0 again. They are bounded at the maximum value for the
respective data-type now if no lower maximum is specified in the
variable's definition.
disables the option explicitely.
Changed the option location in code so that --help will show it in
lexical option order.
This is for bug #26215: mysql command line client should not strip
comments from SQL statements
bug #26215: mysql command line client should not strip comments
from SQL statements
and
bug #11230: Keeping comments when storing stored procedures
With the introduction of multiline comments support in the command line
client (mysql) in MySQL 4.1, it became impossible to preserve
client-side comments within single SQL statements or stored routines.
This feature was useful for monitoring tools and maintenance.
The patch adds a new option to the command line client
('--enable-comments', '-c') which allows to preserve SQL comments and
send them to the server for single SQL statements, and to keep comments
in the code for stored procedures / functions / triggers.
The patch is a modification of the contributed patch from bug #11230
with the following changes:
- code style changes to conform to the coding guidelines
- changed is_prefix() to my_strnncoll() to detect the DELIMITER
command, since the first one is case-sensitive and not charset-aware
- renamed t/comments-51.* to t/mysql_comments.*
- removed tests for comments in triggers since 5.0 does not have SHOW
CREATE TRIGGER (those tests will be added back in 5.1).
The test cases are only for bug #11230. No automated test case for bug
#26215 is possible due to the test suite deficiencies (though the cases
from the bug report were tested manually).
The combination of --single-transaction and --master-data requires
START TRANSACTION WITH CONSISTENT SNAPSHOT which is available from
mysqld 4.1 on. When trying this against an older server, print
diagnostic, then, if --force is not given, abort.
No test-case given since it would require a mysqld < 4.1.
mysqldump adds the "-- Dump completed on YYYY-MM-DD hh:mm:ss" string
to the end of output if the --comments switch is on.
The only way to suppress this line is to use --skip-comments/--compact
switch.
New switch has been added to the mysqldump client command line:
--dump-date.
For the compatibility with previous releases, by default the --dump-date
is on.
The --dump-date switch forces mysqldump to add date to the
"-- Dump completed on ..." string at the end of output.
The --skip-dump-date switch supresses the output of date string
and uses short form of that commentary: "-- Dump completed".
--skip-comments or --compact switches disable the whole commentary
as usual.
make sure that if builder configured with a non-standard (!= 3306)
default TCP port that value actually gets used throughout. if they
didn't configure a value, assume "use a sensible default", which
will be read from /etc/services or, failing that, from the factory
default. That makes the order of preference
- command-line option
- my.cnf, where applicable
- $MYSQL_TCP_PORT environment variable
- /etc/services (unless configured --with-tcp-port)
- default port (--with-tcp-port=... or factory default)
When dumping database from a 4.x server, the mysqldump client
inserted a delimiter sign inside special commentaries of the form:
/*!... CREATE DATABASE IF NOT EXISTS ... ;*/
During restoration that dump file was splitten by delimiter signs on
the client side, and the rest of some commentary strings was prepended
to following statements.
The 4x_server_emul test case option has been added for use with the
DBUG_EXECUTE_IF debugging macro. This option affects debug server
builds only to emulate particular behavior of a 4.x server for
the mysqldump client testing. Non-debugging builds are not affected.
Problem:
In cases when a client-side macro appears inside a server-side comment, the add_line() function in mysql.cc discarded all characters until the next delimiter to remove macro arguments from the query string. This resulted in broken queries being sent to the server when the next delimiter character appeared past the comment's boundaries, because the comment closing sequence ('*/') was discarded.
Fix:
If a client-side macro appears inside a server-side comment, discard all characters in the comment after the macro (that is, until the end of the comment rather than the next delimiter).
This is a minimal fix to allow only simple cases used by the mysqlbinlog utility. Limitations that are worth documenting:
- Nested server-side and/or client-side comments are not supported by mysql.cc
- Using client-side macros in multi-line server-side comments is not supported
- All characters after a client-side macro in a server-side comment will be omitted from the query string (and thus, will not be sent to server).
- Move the code to generate test report to the test tool(in this
case mysqltest) where the best control of what failed is
- Simplify the code in mysql-test-run.pl
- mysqltest will now find what diff to use in a best effort attempt
using "diff -u", "diff -c" and finally dumping the two files verbatim
in the report.
Aligned client library build and use with the Unix version when it
comes to what source to include directly in the builds, and what
libraries to link with (bug#30118).
Also reviewed, corrected and made more clear when static or dynamic
Thread Local Storage is to be used. Some code duplication was removed,
and some redundant library usage were removed, reducing the risk of
incorrect TLS usage.
binary SHOW CREATE TABLE or SELECT FROM I_S.
The problem is that mysqldump generates incorrect dump for a table
with non-ASCII column name if the mysqldump's character set is
ASCII.
The fix is to:
1. Switch character_set_client for the mysqldump's connection
to binary before issuing SHOW CREATE TABLE statement in order
to avoid conversion.
2. Dump switch character_set_client statements to UTF8 and back
for CREATE TABLE statement.
After dumping triggers mysqldump copied
the value of the OLD_SQL_MODE variable to the SQL_MODE
variable. If the --compact option of the mysqldump was
not set the OLD_SQL_MODE variable had the value
of the uninitialized SQL_MODE variable. So
usually the NO_AUTO_VALUE_ON_ZERO option of the
SQL_MODE variable was discarded.
This fix is for non-"--compact" mode of the mysqldump,
because mysqldump --compact never set SQL_MODE to the
value of NO_AUTO_VALUE_ON_ZERO.
The dump_triggers_for_table function has been modified
to restore previous value of the SQL_MODE variable after
dumping triggers using the SAVE_SQL_MODE temporary
variable.
For each view the mysqldump utility creates a temporary table
with the same name and the same columns as the view
in order to satisfy views that depend on this view.
After the creation of all tables, mysqldump drops all
temporary tables and creates actual views.
However, --skip-add-drop-table and --compact flags disable
DROP TABLE statements for those temporary tables. Thus, it was
impossible to create the views because of existence of the
temporary tables with the same names.
