client/mysqldump.c:
  A post-merge fix - 'sock' was renamed to 'mysql'
mysql-test/r/events_bugs.result:
  A post merge fix: now we strip rear comments from the query before
  it gets into the log.
mysql-test/r/func_group.result:
  A post merge fix: default clause is now printed uppercase.
mysql-test/r/im_life_cycle.result:
  Fix my mistake in manual resolve.
mysql-test/r/mysqlcheck.result:
  use test; - after we drop client_test_db there is no current database.
  This cleanup is present in 5.1 only, but the test that was added in 
  5.0 assumes there is a current database, test.
mysql-test/r/mysqldump.result:
  Ignore results of execution of mysqldump: we can't rely on 
  MASTER_LOG_POS in test results, it's different for statement
  and row level logging.
mysql-test/r/mysqlshow.result:
  A post-merge fix: information schema contains a few more tables
  in 5.1
mysql-test/r/mysqltest.result:
  A post merge fix: add 5.1 test end separator.
mysql-test/r/ndb_basic.result:
  A post-merge fix: add test end separators.
mysql-test/r/rpl_switch_stm_row_mixed.result:
  A post merge fix: length of varbinary column is now 3 times less.
  Assuming a side effect of some other change. Length of any
  field is not relevant in this test.
mysql-test/r/rpl_view.result:
  Add an end of test marker.
mysql-test/r/show_check.result:
  Remove duplicate results. Add results from a merged test case.
mysql-test/r/sp-error.result:
  Add test end separators.
mysql-test/r/sp-security.result:
  Post-merge fix: use test after the current database is dropped.
mysql-test/r/sp.result:
  Remove a duplicate result (bad merge that left a copy of
  the test case for Bug#19862 in the test suite).
mysql-test/r/strict.result:
  An after-merge fix for a new test case: in 5.1 we issue a more accurate
  error message: "Incorrect value" instead of "Truncated value". I reason
  it so that in case of an error nothing is truncated, really.
  Also found similar changes in other test cases.
mysql-test/r/type_datetime.result:
  Fix the text of an error.
mysql-test/r/union.result:
  A post-merge fix: CHARACTER SET is now uppercase.
mysql-test/t/mysqlcheck.test:
  A post-merge fix: use test, after current database is dropped, there
  is no current database.
mysql-test/t/mysqldump.test:
  Disable result log: it's dependent on binlog position.
mysql-test/t/sp-security.test:
  use test
sql/item_sum.cc:
  Adjust the call to the constructor after the merge.
sql/sp_head.cc:
  Add a missing DBUG_VOID_RETURN, move security checks out of
  execute_trigger to Table_triggers_list: in 5.1 we check for
  TRIGGER privilege, not SUPER privilege to execute triggers, so these
  checks lack table context inside execute_trigger and have to be
  performed when we have table object on hand.
sql/sql_db.cc:
  A post-merge fix: adjust load_db_opt_by_name and check_db_dir_existence
  (new functions added in 5.0) to be tablename-to-filename encoding 
  friendly.
sql/sql_lex.cc:
  A post-merge fix: make skip_rear_comments operate on const uchar *s.
sql/sql_lex.h:
  A post-merge fix.
sql/sql_show.cc:
  A post-merge fix: fix a bad merge, rename orig_sql_command -> sql_command.
sql/sql_trigger.cc:
  A post-merge fix: move security checks to process_triggers
  from execute_trigger.
sql/sql_view.cc:
  Adjust to the new signature of skip_rear_comments.
sql/sql_yacc.yy:
  Adjust to the new signature of init_strings.

into  bodhi.local:/opt/local/work/mysql-5.1-runtime-merge


BitKeeper/etc/ignore:
  auto-union
BitKeeper/deleted/.del-im_options_set.result~59278f56be61d921:
  Auto merged
BitKeeper/deleted/.del-mysqld.dsp~ffdbf2d234e23e56:
  Auto merged
BitKeeper/deleted/.del-mysys.dsp~32695fee91189326:
  Auto merged
BitKeeper/deleted/.del-im_options_set.imtest~b53d9d60e5684833:
  Auto merged
BitKeeper/deleted/.del-im_options_unset.imtest~768eb186b51d0048:
  Auto merged
BitKeeper/deleted/.del-im_options_unset.result~20a4790cd3c70a4f:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqlbinlog.cc:
  Auto merged
client/mysqlcheck.c:
  Auto merged
client/mysqldump.c:
  Auto merged
client/mysqltest.c:
  Auto merged
dbug/dbug.c:
  Auto merged
extra/perror.c:
  Auto merged
extra/yassl/src/yassl_imp.cpp:
  Auto merged
extra/yassl/src/yassl_int.cpp:
  Auto merged
include/mysql.h:
  Auto merged
include/mysql_com.h:
  Auto merged
libmysql/libmysql.c:
  Auto merged
mysql-test/r/cast.result:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/federated.result:
  Auto merged
mysql-test/r/func_compress.result:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/gis-rtree.result:
  Auto merged
mysql-test/r/gis.result:
  Auto merged
mysql-test/r/im_daemon_life_cycle.result:
  Auto merged
mysql-test/r/im_utils.result:
  Auto merged
mysql-test/r/join_outer.result:
  Auto merged
mysql-test/r/mysqlcheck.result:
  Auto merged
mysql-test/r/rpl_sp.result:
  Auto merged
mysql-test/r/rpl_trigger.result:
  Auto merged
mysql-test/r/sp-code.result:
  Auto merged
mysql-test/r/sp-security.result:
  Auto merged
mysql-test/r/strict.result:
  Auto merged
mysql-test/r/type_blob.result:
  Auto merged
mysql-test/r/type_datetime.result:
  Auto merged
mysql-test/r/type_ranges.result:
  Auto merged
mysql-test/r/udf.result:
  Auto merged
mysql-test/r/user_var.result:
  Auto merged
mysql-test/t/cast.test:
  Auto merged
mysql-test/t/disabled.def:
  Auto merged
mysql-test/t/func_group.test:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/im_daemon_life_cycle.imtest:
  Auto merged
mysql-test/t/im_life_cycle.imtest:
  Auto merged
mysql-test/t/im_utils.imtest:
  Auto merged
mysql-test/t/mysql.test:
  Auto merged
mysql-test/t/mysqlbinlog.test:
  Auto merged
mysql-test/t/mysqlcheck.test:
  Auto merged
mysql-test/t/ps.test:
  Auto merged
mysql-test/t/rpl_trigger.test:
  Auto merged
mysql-test/t/sp-security.test:
  Auto merged
mysql-test/t/strict.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/protocol.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sp_head.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_udf.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.cc:
  Auto merged
sql-common/client.c:
  Auto merged
sql-common/my_time.c:
  Auto merged
sql/table.h:
  Auto merged
storage/ndb/src/kernel/error/ndbd_exit_codes.c:
  Auto merged
storage/ndb/src/mgmsrv/ConfigInfo.cpp:
  Auto merged
mysql-test/r/im_life_cycle.result:
  e
  use local
mysql-test/r/ps.result:
  use local
client/Makefile.am:
  Manual merge.
client/mysqlimport.c:
  Manual merge.
configure.in:
  Manual merge.
mysql-test/mysql-test-run.pl:
  Manual merge.
mysql-test/r/mysqldump.result:
  Manual merge.
mysql-test/r/mysqltest.result:
  Manual merge.
mysql-test/r/ndb_basic.result:
  Manual merge.
mysql-test/r/rpl_view.result:
  Manual merge.
mysql-test/r/show_check.result:
  Manual merge.
mysql-test/r/sp-error.result:
  Manual merge.
mysql-test/r/sp.result:
  Manual merge.
mysql-test/r/union.result:
  Manual merge.
mysql-test/t/mysqldump.test:
  Manual merge.
mysql-test/t/mysqltest.test:
  Manual merge.
mysql-test/t/ndb_basic.test:
  Manual merge.
mysql-test/t/rpl_sp.test:
  Manual merge.
mysql-test/t/rpl_view.test:
  Manual merge.
mysql-test/t/show_check.test:
  Manual merge.
mysql-test/t/sp-error.test:
  Manual merge.
mysql-test/t/sp.test:
  Manual merge.
sql/item_sum.cc:
  Manual merge.
sql/mysql_priv.h:
  Manual merge.
sql/sp_head.cc:
  Manual merge.
sql/sql_db.cc:
  Manual merge.
sql/sql_delete.cc:
  Manual merge.
sql/sql_lex.h:
  Manual merge.
sql/sql_show.cc:
  Manual merge.
sql/sql_table.cc:
  Manual merge.
sql/sql_trigger.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
tests/mysql_client_test.c:
  Manual merge.

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-runtine-merge


mysql-test/r/sp.result:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
sql/sql_base.cc:
  Auto merged

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-merge


client/mysql.cc:
  Auto merged
mysql-test/Makefile.am:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/t/date_formats.test:
  Auto merged
mysql-test/t/func_str.test:
  Auto merged
mysql-test/t/ps_1general.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
mysys/my_open.c:
  Auto merged
BitKeeper/deleted/.del-make_win_src_distribution.sh~f80d8fca44e4e5f1:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/time.cc:
  Auto merged
client/mysqltest.c:
  Manual merge.
mysql-test/r/ps_1general.result:
  Manual merge.

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-merge


sql/ha_innodb.cc:
  Null-merge.
storage/innobase/fil/fil0fil.c:
  Null-merge.
storage/innobase/ibuf/ibuf0ibuf.c:
  Null-merge.

into  janus.mylan:/usr/home/serg/Abk/m51


configure.in:
  Auto merged
sql/sql_base.cc:
  Auto merged

how did it get in?!? (it's only in local csets so no other tree is affected)


sql/sp.cc:
  revert this patch.
  how did it get in?!? (it's only in local csets so no other tree is affected)

mysql-test/r/mysqldump.result:
  update result
mysql-test/t/mysqldump.test:
  update test

into janus.mylan:/usr/home/serg/Abk/m51


configure.in:
  Auto merged

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-merge


sql/sql_base.cc:
  Auto merged

  After merge fix


sql/table.cc:
  After merge fix
sql/sql_base.cc:
  After merge fix

into  lmy004.:/work/mysql-5.1-runtime


sql/sp.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/r/sp.result:
  manual merge
mysql-test/t/sp.test:
  manual merge

    
create function func() returns char(10) binary ...
is no more possible. This will be reenabled when 
bug 2676 "DECLARE can't have COLLATE clause in stored procedure"
is fixed.

Fix after 2nd review


mysql-test/r/sp-error.result:
  update result
mysql-test/r/sp.result:
  update result
mysql-test/t/sp-error.test:
  add a test case for bug#20701 BINARY keyword should be forbidden in stored procedures
mysql-test/t/sp.test:
  Fix test case which uses binary for the return value of a function.
  It's no more possible after fix for bug#20701 
  BINARY keyword should be forbidden in SP
  
  Fix few glitches where ; is used instead of | . The delimiter is |
sql/sql_yacc.yy:
  Fix for bug#20701 BINARY keyword should be forbidden in stored routines
  
  create function func() returns char(10) binary ...
  is no more possible. This will be reenabled when 
  bug 2676 "DECLARE can't have COLLATE clause in stored procedure"
  is fixed

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-rt-merge


sql/handler.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/share/errmsg.txt:
  Auto merged

sql/sql_parse.cc:
  Post-merge fix.  No need to check DB name twice.

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-merge


BitKeeper/deleted/.del-mysys.vcproj~40a49d09c4184822:
  Auto merged
configure.in:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/warnings.result:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/mysqlbinlog.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
mysql-test/t/warnings.test:
  Auto merged
BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb:
  Auto merged
sql/field.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
mysql-test/r/sp.result:
  Manual merge.  Place 5.0 test before 5.1 test.
mysql-test/t/sp.test:
  Manual merge.  Place 5.0 test before 5.1 test.
mysys/my_bitmap.c:
  Manual merge.
scripts/make_binary_distribution.sh:
  Manual merge.
sql/Makefile.am:
  Manual merge.
sql/slave.cc:
  Manual merge.
sql/sql_class.h:
  Manual merge.
sql/sql_parse.cc:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
tests/mysql_client_test.c:
  Manual merge.

  After merge fix


sql/sql_view.cc:
  After merge fix

into  sunlight.local:/local_work/leak_fix-5.1-mysql


sql/sql_lex.h:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/sql_view.h:
  Auto merged
sql/unireg.h:
  Auto merged
sql/sql_base.cc:
  Manual merge
sql/table.cc:
  Manual merge

into  sunlight.local:/local_work/leak_fix


sql/sql_view.cc:
  Auto merged

into  sunlight.local:/local_work/leak_fix


sql/sql_base.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/table.cc:
  Auto merged
sql/sql_view.cc:
  Manually merged

(this is not a fix to the bug, but simply to disable the test in 
order to push a 5.0 to 5.1 merge)

This merge contains:

Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:

bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge


mysql-test/t/disabled.def:
  BUG #21524 "'ps' test fails in --ps-protocol test AMD64 bit"
  
  (this is not a fix to the bug, but simply to disable the test in 
  order to push a 5.0 to 5.1 merge)

  Correct memory leak fix


sql/unireg.h:
  Correct memory leak fix
sql/table.cc:
  Correct memory leak fix
sql/sql_view.h:
  Correct memory leak fix
sql/sql_view.cc:
  Correct memory leak fix
sql/sql_lex.h:
  Correct memory leak fix
sql/sql_base.cc:
  Correct memory leak fix

into  govinda.patg.net:/home/patg/mysql-build/mysql-5.1-5.0-merge2

Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:

bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge


BitKeeper/deleted/.del-libmysqld.dsp~78dc6a589e5a4149:
  Auto merged
configure.in:
  Auto merged
libmysqld/lib_sql.cc:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/merge.result:
  Auto merged
mysql-test/t/date_formats.test:
  Auto merged
mysql-test/t/merge.test:
  Auto merged
sql/field.h:
  Auto merged
sql/ha_myisammrg.cc:
  Auto merged
BitKeeper/deleted/.del-libmysqld.vcproj~a75d5b9a5967dea0:
  Auto merged
BitKeeper/deleted/.del-libmysqld_ia64.dsp~578ab58d5f281d2a:
  Auto merged
BitKeeper/deleted/.del-mysqld.dsp~ffdbf2d234e23e56:
  Auto merged
BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb:
  Auto merged
BitKeeper/deleted/.del-mysqld_ia64.dsp~7f8cf84d81ee04e2:
  Auto merged
BitKeeper/deleted/.del-mysqldemb.dsp~1baf8c0e59ee9f7e:
  Auto merged
BitKeeper/deleted/.del-mysqldemb.vcproj~54c64d55ccc51a7c:
  Auto merged
BitKeeper/deleted/.del-mysqldemb_ia64.dsp~c7f7d75d542393cd:
  Auto merged
BitKeeper/deleted/.del-mysqldmax.dsp~5d213fe1c204142e:
  Auto merged
BitKeeper/deleted/.del-mysqldmax_ia64.dsp~25006b7cc0725ad1:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
include/my_base.h:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
mysql-test/r/federated.result:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
mysql-test/t/federated.test:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
sql/field.cc:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
sql/ha_federated.cc:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
sql/handler.cc:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge
tests/mysql_client_test.c:
  Hand merge of conflicts (5.0-5.1 merge), second try 
  
  Push by holyfoot@production.mysql.com on Tue Jul 25 13:41:40 2006:
  
  bk clone -l -r'holyfoot/hf@mysql.com/deer.(none)|ChangeSet|20060725085017|41021' mysql-5.0 tmp_merge

we didn't check for NULL value of the
lex_create_info->db_type pointer.
The pointer is NULL in the case, when the engine name is
unknown to the server. This happens with NDB on Windows.


sql/sql_table.cc:
  don't check pointer in the case, it is NULL

  Memory leak fix


sql/sql_view.cc:
  Memory leak fix

into  sunlight.local:/local_work/leak_fix


sql/sql_view.cc:
  Auto merged

into  sunlight.local:/local_work/leak_fix


sql/sql_view.cc:
  Auto merged

  Memory leak fix


sql/sql_view.cc:
  Memory leak fix

The following procedure was not possible if max_sp_recursion_depth is 0
create procedure show_proc() show create procedure show_proc;

Actually there is no recursive call but the limit is checked.

Solved by temporarily increasing the thread's limit just before the fetch from cache
and decreasing after that.


mysql-test/r/sp.result:
  update result
mysql-test/t/sp.test:
  Test for bug #21416 SP: Recursion level higher than zero needed for non-recursive call
sql/sp.cc:
  Increase the max_sp_recursion_depth temporarily for SHOW CREATE PROCEDURE call.
  This call is in fact not recursive but is counted as such. Outcome, it will work
  always but if max_sp_recursion_depth is reached we are going to cache one more
  sp_head instance.

into  mysql.com:/home/cps/mysql/devel/5.1-curs-bug


sql/ha_myisam.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/sql_table.cc:
  Auto merged
mysql-test/r/log_tables.result:
  SCCS merged
mysql-test/t/log_tables.test:
  SCCS merged

into  maint1.mysql.com:/data/localhome/tsmith/bk/mrg51-c

BitKeeper/etc/ignore:
  Added ndb/src/common/util/testBitmask.cpp to the ignore list
VC++Files/sql/mysqld.dsp:
  Fix a bug in the .dsp file.

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  rama.(none):/home/jimw/my/mysql-5.1-clean

Use "--source" command instead of "source", makes mysql-test-run.pl dtecte this as test case that need binlog format row.

into  maint1.mysql.com:/data/localhome/tsmith/bk/mrg51-c

                gets deadlocked when dropping w/ log on"

Log tables rely on concurrent insert machinery to add data.
This means that log tables are always opened and locked by
special (artificial) logger threads. Because of this, the thread
which tries to drop a log table starts to wait for the table
to be unlocked. Which will happen only if the log table is disabled.
Alike situation happens if one tries to alter a log table.
However in addition to the problem above, alter table calls
check_if_locking_is_allowed() routine for the engine. The
routine does not allow alter for the log tables. So, alter
doesn't start waiting forever for logs to be disabled, but 
returns with an error.
Another problem is that not all engines could be used for
the log tables. That's because they need concurrent insert.

In this patch we:
(1) Explicitly disallow to drop/alter a log table if it
    is currently used by the logger.
(2) Update MyISAM to support log tables
(3) Allow to drop log tables/alter log tables if log is
    disabled
At the same time we (4) Disallow to alter log tables to
unsupported engine (after this patch CSV and MyISAM are 
alowed)
Recommit with review fixes.


mysql-test/r/log_tables.result:
  Update result file.
  Note: there are warnings in result file. This is because of CSV
  bug (Bug #21328). They should go away after it is fixed.
mysql-test/t/log_tables.test:
  Add a test for the bug
sql/ha_myisam.cc:
  Add log table handling to myisam: as log tables
  use concurrent insert, they are typically
  locked with TL_CONCURRERENT_INSERT lock. So,
  disallow other threads to attempt locking of
  the log tables in incompatible modes. Because
  otherwise the threads will wait for the tables
  to be unlocked forever.
sql/handler.cc:
  Add a function to check if a table we're going to lock
  is a log table and if the lock mode we want allowed
sql/handler.h:
  Add a new function to check compatibility of the locking
sql/log.cc:
  we shouldn't close the log table if and only
  if this particular table is already closed
sql/log.h:
  add new functions to check if a log is enabled
sql/share/errmsg.txt:
  add new error messages
sql/sql_table.cc:
  DROP and ALTER TABLE should not work on log
  tables if the log tables are enabled
storage/csv/ha_tina.cc:
  move function to check if the locking for the log
  tables allowed to handler class, so that we can
  reuse it in other engines.
storage/myisam/mi_extra.c:
  add new ::extra() flag processing to myisam
storage/myisam/mi_open.c:
  init log table flag
storage/myisam/mi_write.c:
  update status after each write if it's a log table
storage/myisam/myisamdef.h:
  Add new log table flag to myisam share.
  We need it to distinguish between usual
  and log tables, as for the log tables we
  should provide concurrent insert in a
  different way than for usual tables: we
  want new rows to be immediately visible
  to other threads.