mariadb/mysql-test
Gleb Shchepa 3246383301 Bug #49480: WHERE using YEAR columns returns unexpected results
A few problems were found in the fix for bug 43668:
1) Comparison of the YEAR column with NULL always returned TRUE;
2) Comparison of the YEAR column with constants always returned
   unpredictable result;
3) Unnecessary conversion warnings when comparing a non-integer
   constant with a NULL value in the YEAR column;

The problems described above have been resolved with an
exception: zero (i.e. invalid) YEAR column value comparison
with 00 or 2000 still fail (it is not a regression and it was
not a regression), so MIN/MAX on YEAR column containing zero
value still fail.


mysql-test/r/type_year.result:
  Test case for bug #49480.
mysql-test/t/type_year.test:
  Test case for bug #49480.
sql/item_cmpfunc.cc:
  - The get_year_value() function has been modified to make its
    return value compatible with the get_datetime_value() return
    value (i.e. to convert numeric values into the YYYY0000000000
    (YYYY-00-00 00:00:00) form.
  
  - The Arg_comparator::set_cmp_func method has been modified to
    use the get_year_value function if get_datetime_value() is not
    applicable.
    From now only 2 cases have a special processing there:
    * both comparing items have MYSQL_TYPE_YEAR field type
            or
    * one item have is MYSQL_TYPE_YEAR and other one is
      is_datetime()-compliant.
  
  - New helper function try_year_cmp_func() has been
    added for the better code readability to call from
    Arg_comparator::set_cmp_func().
  
  - The Arg_comparator::compare_year method has been removed
    since get_year_value() is compatible with the old
    Arg_comparator::compare_datetime method that doesn't have
    problems #1-#3 (see whole patch entry commentary).
sql/item_cmpfunc.h:
  - New helper function try_year_cmp_func() has been
    added for the better code readability to call from
    Arg_comparator::set_cmp_func().
  
  - Unnecessary Arg_comparator::year_as_datetime and
    Arg_comparator::compare_year() declarations have been
    removed.
2009-12-10 10:05:44 +04:00
..
collections Automerge bzr bundle from bug report. 2009-12-06 23:36:07 +00:00
extra merge 5.1-bugteam (local) --> 5.1-bugteam 2009-11-21 13:02:18 +00:00
include Merge from 5.0-bugteam 2009-12-10 11:51:42 +08:00
lib Applying InnoDB Plugin 1.0.6 snapshot, part 8. Fixes BUG#48782 2009-11-30 18:43:34 +05:30
r Bug #49480: WHERE using YEAR columns returns unexpected results 2009-12-10 10:05:44 +04:00
std_data Bug #47012 archive tables are not upgradeable, and server crashes 2009-11-11 13:33:29 +05:30
suite Auto merge 2009-12-10 12:56:10 +08:00
t Bug #49480: WHERE using YEAR columns returns unexpected results 2009-12-10 10:05:44 +04:00
Makefile.am Apply patch from bug#46834 to install the test suite in RPMs. 2009-08-21 13:58:33 +02:00
mysql-stress-test.pl Checking in new version of 'mysql-stress-test.pl that was used for the last few month 2009-09-25 08:27:55 -07:00
mysql-test-run.pl merge 48149 2009-10-20 12:05:28 +02:00
purify.supp
README
README.gcov
README.stress
valgrind.supp fixed a typo in valgrind.supp 2009-09-25 14:52:41 +03:00

This directory contains a test suite for the MySQL daemon. To run
the currently existing test cases, simply execute ./mysql-test-run in
this directory. It will fire up the newly built mysqld and test it.

Note that you do not have to have to do "make install", and you could
actually have a co-existing MySQL installation. The tests will not
conflict with it.

All tests must pass. If one or more of them fail on your system, please
read the following manual section for instructions on how to report the
problem:

http://dev.mysql.com/doc/mysql/en/mysql-test-suite.html

If you want to use an already running MySQL server for specific tests,
use the --extern option to mysql-test-run. Please note that in this mode,
the test suite expects you to provide the names of the tests to run.
For example, here is the command to run the "alias" and "analyze" tests
with an external server:

mysql-test-run --extern alias analyze

To match your setup, you might also need to provide --socket, --user, and
other relevant options.

With no test cases named on the command line, mysql-test-run falls back
to the normal "non-extern" behavior. The reason for this is that some
tests cannot run with an external server.


You can create your own test cases. To create a test case, create a new
file in the t subdirectory using a text editor. The file should have a .test
extension. For example:

 xemacs t/test_case_name.test

 In the file, put a set of SQL statements that create some tables,
 load test data, and run some queries to manipulate it.

 We would appreciate it if you name your test tables t1, t2, t3 ... (to not
 conflict too much with existing tables).

 Your test should begin by dropping the tables you are going to create and
 end by dropping them again.  This ensures that you can run the test over
 and over again.
 
 If you are using mysqltest commands (like result file names) in your
 test case, you should create the result file as follows:

 mysql-test-run --record test_case_name

 or

 mysqltest --record < t/test_case_name.test

 If you only have a simple test cases consisting of SQL statements and
 comments, you can create the test case in one of the following ways:

 mysql-test-run --record test_case_name

 mysql test < t/test_case_name.test > r/test_case_name.result

 mysqltest --record --record-file=r/test_case_name.result < t/test_case_name.test

 When this is done, take a look at r/test_case_name.result
 - If the result is incorrect, you have found a bug. In this case, you should
   edit the test result to the correct results so that we can verify
   that the bug is corrected in future releases.

To submit your test case, put your .test file and .result file(s) into
a tar.gz archive, add a README that explains the problem, ftp the 
archive to ftp://support.mysql.com/pub/mysql/secret/ and send a mail
to bugs@lists.mysql.com