BUG#34790 - 'create server' doesn't handle out of memory scenario
            well enough

This is an addition to fixes for these bugs, which makes gcov
happy.


mysql-test/r/federated.result:
  CREATE SERVER is only tested by federated_server.test, which requires
  big-test option. Added dummy test case to make gcov happy.
mysql-test/t/federated.test:
  CREATE SERVER is only tested by federated_server.test, which requires
  big-test option. Added dummy test case to make gcov happy.
sql/sql_parse.cc:
  Make gcov happy.

            if binlog_format=mixed

Addition to fix for BUG#34768: fixed test case failures discovered
by pushbuild.


mysql-test/suite/binlog/r/binlog_stm_ps.result:
  Fixed binlog_stm_ps failure when binlog format is statement:
  - this test case makes sence only if binlog format is statement,
    thus execute it only in this mode;
  - added a warning that insert ... select ... limit is not safe
    to execute in statement mode.
mysql-test/suite/binlog/t/binlog_stm_ps.test:
  Fixed binlog_stm_ps failure when binlog format is statement:
  - this test case makes sence only if binlog format is statement,
    thus execute it only in this mode;
  - added a warning that insert ... select ... limit is not safe
    to execute in statement mode.
mysql-test/suite/rpl/t/rpl_optimize.test:
  rpl_optimize test may be executed in various binlog format modes.
  In statement mode delete ... limit issues a warning, in mixed and
  row modes it does not.
  
  Fixed a test case so it is still possible to execute it in all binlog
  format modes by ignoring delete ... limit warnings.
mysql-test/suite/rpl/t/rpl_user_variables.test:
  rpl_user_variables test may be executed in various binlog format modes.
  In statement mode insert ... select ... limit issues a warning,
  in mixed and row modes it does not.
  
  Fixed a test case so it is still possible to execute it in all binlog
  format modes by ignoring insert ... select ... limit warnings.

into  mysql.com:/home/svoj/devel/mysql/push/mysql-5.1-engines


sql/sql_servers.cc:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/push/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/push/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/push/mysql-5.1-engines


mysql-test/r/federated.result:
  Manual merge.
mysql-test/t/federated.test:
  Manual merge.
storage/federated/ha_federated.cc:
  Manual merge.

into  mysql.com:/home/svoj/devel/mysql/BUG34768/mysql-5.1-engines


sql/sql_insert.cc:
  Auto merged

            correctly - crashes server !

Creating federated table with connect string containing empty
(zero-length) host name and port is evaluated as 0 (port is
incorrect, omitted or 0) crashes server.

This happens because federated calls strcmp() with NULL pointer.

Fixed by avoiding strcmp() call if hostname is set to NULL.


mysql-test/r/federated.result:
  A test case for BUG#34788.
mysql-test/t/federated.test:
  A test case for BUG#34788.
sql/ha_federated.cc:
  Fixed that parse_url() may call strcmp() with NULL pointer.

When CREATE SERVER is issued, it allocates memory on memory root
to store cached server structure. When DROP SERVER is issued,
it doesn't release this memory, as it is impossible with the
memory root.

We use the same allocation strategy for plugins and acl. The problem
here that there was no way (except for the server restart) to force
'servers' code to release this memory.

With this fix it is possible to release unused server cache memory
by FLUSH PRIVILEGES.

No test case for this fix.


sql/sql_parse.cc:
  Reload servers table on FLUSH PRIVILEGES.
sql/sql_servers.cc:
  Instead of just marking memory blocks as unused, release memory
  used by servers cache and initialize new memory root.
  
  This is needed for FLUSH PRIVILEGES to release unused memory
  blocks.

            well enough

CREATE SERVER may cause server crash if there is not enough memory
to execute this operation.

Fixed that create_server() and prepare_server_struct_for_insert()
didn't check return value of functions that allocate memory.

As this is out of memory issue fix, not test case available.


sql/sql_servers.cc:
  Fixed that create_server() and prepare_server_struct_for_insert()
  didn't check return value of functions that allocate memory.

            binlog_format=mixed

Statement-based replication of DELETE ... LIMIT, UPDATE ... LIMIT,
INSERT ... SELECT ... LIMIT is not safe as order of rows is not
defined.

With this fix, we issue a warning that this statement is not safe to
replicate in statement mode, or go to row-based mode in mixed mode.

Note that we may consider a statement as safe if ORDER BY primary_key
is present. However it may confuse users to see very similiar statements
replicated differently.

Note 2: regular UPDATE statement (w/o LIMIT) is unsafe as well, but
this patch doesn't address this issue. See comment from Kristian
posted 18 Mar 10:55.


mysql-test/suite/binlog/r/binlog_stm_ps.result:
  Updated a test case according to fix for BUG#34768:
  INSERT ... SELECT ... LIMIT is now replicated in row mode.
mysql-test/suite/binlog/r/binlog_unsafe.result:
  A test case for BUG#34768.
mysql-test/suite/binlog/t/binlog_unsafe.test:
  A test case for BUG#34768.
sql/sql_delete.cc:
  Statement-based replication of DELETE ... LIMIT is not safe as order of
  rows is not defined, so in mixed mode we go to row-based.
sql/sql_insert.cc:
  Statement-based replication of INSERT ... SELECT ... LIMIT is not safe
  as order of rows is not defined, so in mixed mode we go to row-based.
sql/sql_update.cc:
  Statement-based replication of UPDATE ... LIMIT is not safe as order of
  rows is not defined, so in mixed mode we go to row-based.

into  mysql.com:/home/svoj/devel/mysql/cov/mysql-5.1-engines


sql/log_event.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

Have changed the DATA/INDEX dir to not be a database dir.
(and made some changes for better result files.)


mysql-test/suite/parts/inc/partition_basic_symlink.inc:
  Bug#35306: partition_basic_symlink test failures
  
  after bug 32167 it is not allowed with DATA/INDEX DIR in any database
  directory.
  
  remade the inc-files to make better use of each other (less duplicate tests)
mysql-test/suite/parts/inc/partition_directory.inc:
  Removed disable/enable_query_log for better result files
mysql-test/suite/parts/inc/partition_layout_check1.inc:
  changed DATA/INDEX DIR
mysql-test/suite/parts/inc/partition_layout_check2.inc:
  added check with_directories
mysql-test/suite/parts/inc/partition_methods1.inc:
  Removed disable/enable_query_log for better result files
mysql-test/suite/parts/inc/partition_methods2.inc:
  Removed disable/enable_query_log for better result files
  Added with_directories for testing of DATA/INDEX DIR
mysql-test/suite/parts/r/partition_basic_innodb.result:
  Updated test result due to test case changes
mysql-test/suite/parts/r/partition_basic_myisam.result:
  Updated test result due to test case changes
mysql-test/suite/parts/r/partition_basic_symlink_innodb.result:
  Updated test result due to test case changes
mysql-test/suite/parts/r/partition_basic_symlink_myisam.result:
  Updated test result due to test case changes
mysql-test/suite/parts/t/disabled.def:
  Bug#35306: parts.partition_basic_symlink test failures
  Enable the test again since the have been fixed
mysql-test/suite/parts/t/partition_basic_innodb.test:
  Added check for table files.
mysql-test/suite/parts/t/partition_basic_myisam.test:
  removing dependency of symlink
  (test exists now in parts.partition_basic_symlink_myisam)
mysql-test/suite/parts/t/partition_basic_symlink_innodb.test:
  Bug#35306: partition_basic_symlink test failures
  
  Removed old test (since DATA/INDEX DIRECTORY is not supported in InnoDB)
  and replaced it with a simple test that altering a partitioned innodb
  with DATA/INDEX DIR to MyISAM, would use the DATA/INDEX DIR.

Updated the test due to bug 32167

Corrected spelling of error message


mysql-test/r/partition_not_windows.result:
  Updated test result due to test case changes and corrected spelling error
mysql-test/r/partition_symlink.result:
  Bug#35305: partition_symlink test failure
  
  Updated test result due to test case changes
mysql-test/r/symlink.result:
  Updated test result due to test case changes and corrected spelling error
mysql-test/t/disabled.def:
  Bug#35305: partition_symlink test failure
  
  Enable the test after it has been fixed
mysql-test/t/partition_not_windows.test:
  Removed disable/enable_query_log for better result files
mysql-test/t/partition_symlink.test:
  Bug#35305: partition_symlink test failure
  
  Changes due to bug 32167
mysql-test/t/symlink.test:
  using replace_result instead of disable_query_log
sql/partition_info.cc:
  corrected spelling
sql/sql_parse.cc:
  corrected spelling

into -engines tree.

hander::table_share was not updated after changing table->s.


sql/ha_partition.cc:
  Valgrind warning after merge -main -> -engines, after bug#32943
  
  change_table_ptr can happen in a middle of
  alter table rename/drop/... partition
  
  the newly created partitions must get the updated table_share too.
sql/sql_base.cc:
  Bug#32943 was missing a call to change_table_ptr, this was found by valgrind
  after a merge from -main to -engines.

mysql-test/t/disabled.def:
  make pushbuild green, entry added to wrong disabled.def file.

mysql-test/r/partition_not_windows.result:
  fix results from merge
mysql-test/t/disabled.def:
  disable test partition_symlink

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.1


sql/sql_yacc.yy:
  Auto merged

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0


sql/sql_yacc.yy:
  Auto merged

After merge fix.

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.1

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0

Merge pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0
into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.1


mysql-test/r/func_misc.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/t/func_misc.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.1


configure.in:
  Auto merged
mysql-test/r/func_misc.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/r/partition.result:
  Auto merged
mysql-test/r/partition_symlink.result:
  Auto merged
mysql-test/t/func_misc.test:
  Auto merged
mysql-test/t/partition.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/partition_info.cc:
  Auto merged
sql/partition_info.h:
  Auto merged
sql/rpl_rli.cc:
  Auto merged
sql/sql_plugin.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
mysql-test/r/symlink.result:
  manual merge
mysql-test/suite/parts/inc/partition_basic.inc:
  manual merge
mysql-test/suite/parts/r/partition_basic_innodb.result:
  manual merge
mysql-test/suite/parts/r/partition_basic_myisam.result:
  manual merge
mysql-test/t/partition_symlink.test:
  manual merge
mysql-test/t/symlink.test:
  manual merge
sql/sql_parse.cc:
  manual merge

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0


mysql-test/r/func_misc.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/t/func_misc.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG28248/mysql-5.1-engines


mysql-test/r/merge.result:
  Auto merged
mysql-test/t/merge.test:
  Auto merged
storage/myisammrg/ha_myisammrg.cc:
  Auto merged
sql/sql_yacc.yy:
  After merge fix.

into  mysql.com:/home/svoj/devel/mysql/BUG28248/mysql-5.0-engines

When there are no underlying tables specified for a merge table,
SHOW CREATE TABLE outputs a statement that cannot be executed. The
same is true for mysqldump (it generates dumps that cannot be
executed).

This happens because SQL parser does not accept empty UNION() clause.

This patch changes the following:
- it is now possible to execute CREATE/ALTER statement with
  empty UNION() clause.
- the same as above, but still worth noting: it is now possible to
  remove underlying tables mapping using ALTER TABLE ... UNION=().
- SHOW CREATE TABLE does not output UNION() clause if there are
  no underlying tables specified for a merge table. This makes
  mysqldump slightly smaller.


mysql-test/r/merge.result:
  A test case for BUG#28248.
mysql-test/t/merge.test:
  A test case for BUG#28248.
sql/ha_myisammrg.cc:
  Do not output UNION clause in SHOW CREATE TABLE, when there are
  no underlying tables defined.
sql/sql_yacc.yy:
  Make underlying table list for MERGE engine optional.
  
  As for MERGE engine empty underlying tables list is valid, it should
  be valid for the parser as well.
  
  This change is mostly needed to restore dumps made by earlier MySQL
  versions. Also with this fix it is possible to remove underlying
  tables mapping by using ALTER TABLE ... UNION=().

into  mysql.com:/home/svoj/devel/mysql/BUG13861/mysql-5.1-engines


mysql-test/suite/rpl/r/rpl_dual_pos_advance.result:
  Auto merged
mysql-test/suite/rpl/t/rpl_dual_pos_advance.test:
  SCCS merged

            log-slave-updates and circul repl

This is a test case fix for BUG#13861.


mysql-test/r/rpl_dual_pos_advance.result:
  Fix for a test case for BUG#13861.
mysql-test/t/rpl_dual_pos_advance.test:
  Fix for a test case for BUG#13861.
  
  master_pos_wait() requires slave sql thread running. But it is not
  guaranteed for this test case. As we use start slave until it may
  execute all events and shutdown before master_pos_wait() is started.
  
  On the other hand it is safe just to wait for slave to stop here,
  as start slave returns _after_ sql thread is started.

into  kaamos.(none):/data/src/opt/mysql-5.1-opt


tests/mysql_client_test.c:
  Null merge.

  
Disable test case for bug 29948, which is causing sporadically
failures in other tests inside mysql_client_test.


tests/mysql_client_test.c:
  Disable test case.

bug12713.

into  kaamos.(none):/data/src/opt/mysql-5.1-opt


sql/sql_show.cc:
  Auto merged
sql/table.h:
  Auto merged

into  kaamos.(none):/data/src/opt/mysql-5.1-opt


tests/mysql_client_test.c:
  Manual merge.

into  kaamos.(none):/data/src/opt/mysql-5.1-opt


client/mysql.cc:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/view.test:
  Auto merged
scripts/mysql_config.sh:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
tests/mysql_client_test.c:
  Auto merged