mariadb/mysql-test
Dmitry Lenev 0b5b1dd197 Fix for bug #11754210 - "45777: CHECK TABLE DOESN'T
SHOW ALL PROBLEMS FOR MERGE TABLE COMPLIANCE IN 5.1".

The problem was that CHECK/REPAIR TABLE for a MERGE table which
had several children missing or in wrong engine reported only
issue with the first such table in its result-set. While in 5.0
this statement returned the whole list of problematic tables.

Ability to report problems for all children was lost during
significant refactorings of MERGE code which were done as part
of work on 5.1 and 5.5 releases.

This patch restores status quo ante refactorings by changing
code in such a way that:
1) Failure to open child table due to its absence during CHECK/
   REPAIR TABLE for a MERGE table is not reported immediately
   when its absence is discovered in open_tables(). Instead
   handling/error reporting in such a situation is postponed
   until the moment when children are attached.
2) Code performing attaching of children no longer stops when
   it encounters first problem with one of the children during
   CHECK/REPAIR TABLE. Instead it continues iteration through
   the child list until all problems caused by child absence/
   wrong engine are reported.

Note that even after this change problem with mismatch of
child/parent definition won't be reported if there is also
another child missing, but this is how it was in 5.0 as well.

mysql-test/r/merge.result:
  Added test case for bug #11754210 - "45777: CHECK TABLE DOESN'T
  SHOW ALL PROBLEMS FOR MERGE TABLE COMPLIANCE IN 5.1".
  Adjusted results of existing tests to the fact that CHECK/REPAIR
  TABLE statements now try to report problems about missing table/
  wrong engine for all underlying tables, and to the fact that
  mismatch of parent/child definitions is always reported as an
  error and not a warning.
mysql-test/t/merge.test:
  Added test case for bug #11754210 - "45777: CHECK TABLE DOESN'T
  SHOW ALL PROBLEMS FOR MERGE TABLE COMPLIANCE IN 5.1".
sql/sql_base.cc:
  Changed code responsible for opening tables to ignore the fact
  that underlying tables of a MERGE table are missing, if this
  table is opened for CHECK/REPAIR TABLE.
  The absence of underlying tables in this case is now detected and
  appropriate error is reported at the point when child tables are
  attached. At this point we can produce full list of problematic
  child tables/errors to be returned as part of CHECK/REPAIR TABLE
  result-set.
storage/myisammrg/ha_myisammrg.cc:
  Changed myisammrg_attach_children_callback() to handle new
  situation, when during CHECK/REPAIR TABLE we do not report 
  error about missing child immediately when this fact is 
  discovered during open_tables() but postpone error-reporting
  till the time when children are attached. 
  Also this callback is now responsible for pushing an error
  mentioning problematic child table to the list of errors to 
  be reported by CHECK/REPAIR TABLE statements.
  Finally, since now myrg_attach_children() no longer relies on
  return value from callback to determine the end of the children
  list, callback no longer needs to set my_errno value and can
  be simplified.
  
  Changed myrg_print_wrong_table() to always report a problem
  with child table as an error and not as a warning. This makes
  reporting for different types of issues with child tables
  more consistent and compatible with 5.0 behavior.
storage/myisammrg/myrg_open.c:
  Changed code in myrg_attach_children() not to abort on the
  first problem with a child table when attaching children to
  parent MERGE table during CHECK/REPAIR TABLE statement 
  execution. This allows CHECK/REPAIR TABLE to report problems 
  about absence/wrong engine for all underlying tables as
  part of their result-set.
2011-07-22 16:31:10 +04:00
..
collections Fixed the bug number since Bug#11755949 was closed as duplicate of Bug#11753919 2011-07-20 22:42:47 +05:30
extra BUG#11809016 - NO WAY TO DISCOVER AN INSTANCE IS NO LONGER A SLAVE FOLLOWING MYSQL BUG#28796 2011-07-18 18:18:03 +01:00
include Merge from mysql-5.1 to mysql-5.5. 2011-07-04 09:48:14 +02:00
lib merge from 5.5 main 2011-07-04 11:21:53 +02:00
r Fix for bug #11754210 - "45777: CHECK TABLE DOESN'T 2011-07-22 16:31:10 +04:00
std_data Updated/added copyright headers 2011-06-30 17:46:53 +02:00
suite merge mysql-5.5 (local) --> mysql-5.5 2011-07-20 10:24:14 +01:00
t Fix for bug #11754210 - "45777: CHECK TABLE DOESN'T 2011-07-22 16:31:10 +04:00
CMakeLists.txt Updated/added copyright headers 2011-06-30 17:46:53 +02:00
mtr.out-of-source
mysql-stress-test.pl Fixed copyright headers in mtr src files 2011-01-18 11:21:37 +01:00
mysql-test-run.pl Updated/added copyright headers 2011-06-30 17:37:13 +02:00
purify.supp - Added/updated copyright headers 2010-12-28 19:57:23 +01:00
README
README.gcov
README.stress
valgrind.supp Updated/added copyright headers 2011-06-30 17:37:13 +02:00

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