which accidentally got broken during the merge
on 16-Feb-2007.


mysql-test/r/view.result:
  Updated result file.
mysql-test/t/view.test:
  Fix test for views with national characters,
  which accidentally got broken during the merge
  on 16-Feb-2007.
  
  Now view.test is in UTF8 character set,
  so SET NAMES is required.

Fix timeouts. Only test suite is changed.


mysql-test/mysql-test-run.pl:
  Decrease MySQL server shutdown delay.
  Trasactional storage engines are not used here,
  so it should be enough.
mysql-test/t/im_daemon_life_cycle.imtest:
  Increase wait-timeout.

The cause of im_daemon_life_cycle.imtest random failures was the following
behaviour of some implementations of LINUX threads: let's suppose that a
process has several threads (in LINUX threads, there is a separate process for
each thread). When the main process gets killed, the parent receives SIGCHLD
before all threads (child processes) die. In other words, the parent receives
SIGCHLD, when its child is not completely dead.

In terms of IM, that means that IM-angel receives SIGCHLD when IM-main is not dead
and still holds some resources. After receiving SIGCHLD, IM-angel restarts
IM-main, but IM-main failed to initialize, because previous instance (copy) of
IM-main still holds server socket (TCP-port).

Another problem here was that IM-angel restarted IM-main only if it was killed
by signal. If it exited with error, IM-angel thought it's intended / graceful
shutdown and exited itself.

So, when the second instance of IM-main failed to initialize, IM-angel thought
it's intended shutdown and quit.

The fix is
  1. to change IM-angel so that it restarts IM-main if it exited with error code;
  2. to change IM-main so that it returns proper exit code in case of failure.


mysql-test/t/disabled.def:
  Enable im_daemon_life_cycle.
server-tools/instance-manager/listener.cc:
  Set error status if Listener failed to initialize.
server-tools/instance-manager/manager.cc:
  Return exit code from the manager.
server-tools/instance-manager/manager.h:
  Return exit code from the manager.
server-tools/instance-manager/mysqlmanager.cc:
  1. Restart IM-main if exit code is not EXIT_SUCCESS (0).
  2. Log IM-main exit code in case of failure.
server-tools/instance-manager/thread_registry.cc:
  Add support for exit code.
server-tools/instance-manager/thread_registry.h:
  Add support for exit code.

into  kpdesk.mysql.com:/home/thek/dev/mysql-5.0-runtime


sql/sql_parse.cc:
  Auto merged

- Starting time of a query sent by bootstrapping wasn't initialized
  and starting time defaulted to 0. This later used value by NOW-
  item and was translated to 1970-01-01 11:00:00.
- Marketing the time with thd->set_time() before the call to
  mysql_parse resolves this issue.
- set_time was refactored to be part of the thd->init_for_queries-
  process.


mysql-test/r/init_file.result:
  Manual merge from 4.1
mysql-test/std_data/init_file.dat:
  Manual merge from 4.1
sql/sql_class.cc:
  - Moved set_time into init_for_queries process.

into  kpdesk.mysql.com:/home/thek/dev/bug23240/my50-bug23240


mysql-test/t/init_file.test:
  Auto merged
BitKeeper/deleted/.del-init_file.result:
  Auto merged
mysql-test/std_data/init_file.dat:
  Null merge
sql/sql_parse.cc:
  Null merge

- Starting time of a query sent by file bootstrapping wasn't initialized
  and starting time defaulted to 0. This later used value by the Now-
  item and is translated to 1970-01-01 11:00:00.
- marking the time with thd->set_time() before the call to 
  mysql_parse resolves this issue.


mysql-test/r/init_file.result:
  Appended test case
mysql-test/std_data/init_file.dat:
  Appended test case
mysql-test/t/init_file.test:
  Appended test case

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-rt-merge


sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_subselect.h:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint


sql/mysql_priv.h:
  Auto merged

into  bk-internal.mysql.com:/data0/bk/mysql-5.0-opt


BitKeeper/etc/gone:
  auto-union
mysys/my_getopt.c:
  Auto merged
sql/field.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.cc:
  Auto merged
mysql-test/r/select.result:
  Manual merge
mysql-test/t/select.test:
  Manual merge

Showstopper and regression against 5.0.24.

Previously, we ignored seek() errors (see Bug#22828) and let seek()s
against pipes fail.  Now, since we check that a seek didn't fail,
and return without reading, this bug popped up.

This restores the behavior for file-ish objects that could never be 
seek()ed.


mysys/mf_iocache.c:
  If we detect early that the file is not tell()able, then we should
  assume that it's also not seek()able and therefore we should never
  set the (poorly named) "seek_not_done" flag so that we don't immedi-
  ately try to seek() when reading later.
  
  The problem was that tell() was returning -1, so when we read later, 
  we needlessly tried to seek to position  (unsigned long) -1 . 
  
  Also, if we think we're supposed to seek to a position in a file and 
  the file is un-tell()able, then abort.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint


sql/mysql_priv.h:
  Auto merged

into  pilot.mysql.com:/home/msvensson/mysql/mysql-5.0-maint


BitKeeper/etc/ignore:
  auto-union

into  pilot.mysql.com:/home/msvensson/mysql/mysql-5.0-maint


BitKeeper/etc/gone:
  auto-union
mysys/my_getopt.c:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/table.cc:
  Auto merged

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug26209


sql/sql_select.cc:
  Auto merged

into  mysql.com:/home/hf/work/25492/my50-25492


sql/item.cc:
  Auto merged

into  mysql.com:/home/hf/work/25492/my50-25492

into  mysql.com:/home/hf/work/25492/my50-25492


libmysqld/lib_sql.cc:
  merging

  operations)

Before this change, the boolean predicates:
- X IS TRUE,
- X IS NOT TRUE,
- X IS FALSE,
- X IS NOT FALSE
were implemented by expanding the Item tree in the parser, by using a
construct like:
Item_func_if(Item_func_ifnull(X, <value>), <value>, <value>)

Each <value> was a constant integer, either 0 or 1.

A bug in the implementation of the function IF(a, b, c), in
Item_func_if::fix_length_and_dec(), would cause the following :

When the arguments b and c are both unsigned, the result type of the
function was signed, instead of unsigned.

When the result of the if function is signed, space for the sign could be
counted twice (in the max() expression for a signed argument, and in the
total), causing the member max_length to be too high.

An effect of this is that the final type of IF(x, int(1), int(1)) would be
int(2) instead of int(1).

With this fix, the problems found in Item_func_if::fix_length_and_dec()
have been fixed.

While it's semantically correct to represent 'X IS TRUE' with
Item_func_if(Item_func_ifnull(X, <value>), <value>, <value>),
there are however more problems with this construct.

a)
Building the parse tree involves :
- creating 5 Item instances (3 ints, 1 ifnull, 1 if),
- creating each Item calls my_pthread_getspecific_ptr() once in the operator
  new(size), and a second time in the Item::Item() constructor, resulting
  in a total of 10 calls to get the current thread.
Evaluating the expression involves evaluating up to 4 nodes at runtime.
This representation could be greatly simplified and improved.

b)
Transforming the parse tree internally with if(ifnull(...)) is fine as long
as this transformation is internal to the server implementation.
With views however, the result of the parse tree is later exposed by the
::print() functions, and stored as part of the view definition.
Doing this has long term consequences:

1)
The original semantic 'X IS TRUE' is lost, and replaced by the
if(ifnull(...)) expression. As a result, SHOW CREATE VIEW does not restore
the original code.

2)
Should a future version of MySQL implement the SQL BOOLEAN data type for
example, views created today using 'X IS NULL' can be exported using
mysqldump, and imported again. Such views would be converted correctly and
automatically to use a BOOLEAN column in the future version.
With 'X IS TRUE' and the current implementations, views using these
"boolean" predicates would not be converted during the export/import, and
would use integer columns instead.
The difference traces back to how SHOW CREATE VIEW preserves 'X IS NULL' but
does not preserve the 'X IS TRUE' semantic.

With this fix, internal representation of 'X IS TRUE' booleans predicates
has changed, so that:
- dedicated Item classes are created for each predicate,
- only 1 Item is created to represent 1 predicate
- my_pthread_getspecific_ptr() is invoked 1 time instead of 10
- SHOW CREATE VIEW preserves the original semantic, and prints 'X IS TRUE'.

Note that, because of the fix in Item_func_if, views created before this fix
will:
- correctly use a int(1) type instead of int(2) for boolean predicates,
- incorrectly print the if(ifnull(...), ...) expression in SHOW CREATE VIEW,
since the original semantic (X IS TRUE) has been lost.
- except for the syntax used in SHOW CREATE VIEW, these views will operate
properly, no action is needed.

Views created after this fix will operate correctly, and will preserve the
original code semantic in SHOW CREATE VIEW.


mysql-test/r/func_if.result:
  IF(x, unsigned, unsigned) should be unsigned.
mysql-test/r/view.result:
  Preserve the semantic of 'X IS [NOT] (TRUE|FALSE)' boolean predicates.
mysql-test/t/func_if.test:
  IF(x, unsigned, unsigned) should be unsigned.
mysql-test/t/view.test:
  Preserve the semantic of 'X IS [NOT] (TRUE|FALSE)' boolean predicates.
sql/item_cmpfunc.cc:
  Preserve the semantic of 'X IS [NOT] (TRUE|FALSE)' boolean predicates.
  IF(x, unsigned, unsigned) should be unsigned.
sql/item_cmpfunc.h:
  Preserve the semantic of 'X IS [NOT] (TRUE|FALSE)' boolean predicates.
sql/sql_yacc.yy:
  Preserve the semantic of 'X IS [NOT] (TRUE|FALSE)' boolean predicates.

libmysqld/lib_sql.cc:
  code modified to prevent freeing of memory that wasn't malloc-ed.
  Now we check if MYSQL_STMT::result was used.

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt

 Common symbols with and without initialization
 cause the apple linker to exclude then from the
 list of global symbols.

into  mysql.com:/home/tnurnberg/24660/50-24660


sql/table.cc:
  Auto merged
sql/unireg.cc:
  Auto merged

into  mysql.com:/home/tnurnberg/24660/41-24660


sql/table.cc:
  Auto merged

into  mysql.com:/home/tnurnberg/24660/50-24660


mysql-test/r/type_enum.result:
  Auto merged
sql/table.cc:
  Auto merged
sql/unireg.cc:
  Auto merged

ENUMs weren't allowed to have character 0xff, a perfectly good character in some locales.
This was circumvented by mapping 0xff in ENUMs to ',', thereby prevent actual commas from
being used. Now if 0xff makes an appearance, we find a character not used in the enum and
use that as a separator. If no such character exists, we throw an error.

Any solution would have broken some sort of existing behaviour. This solution should
serve both fractions (those with 0xff and those with ',' in their enums), but
WILL REQUIRE A DUMP/RESTORE CYCLE FROM THOSE WITH 0xff IN THEIR ENUMS. :-/
That is, mysqldump with their current server, and restore when upgrading to one with
this patch.


mysql-test/r/type_enum.result:
  Bug#24660: "enum" field type definition problem
  
  Show that enums can now contain NAMES_SEP_CHAR (0xff, which is a perfectly respectable
  char in some locales), or ',', or both.
mysql-test/t/type_enum.test:
  Bug#24660: "enum" field type definition problem
  
  Show that enums can now contain NAMES_SEP_CHAR (0xff, which is a perfectly respectable
  char in some locales), or ',', or both.
sql/table.cc:
  Bug#24660: "enum" field type definition problem
  
  Revert fix for Bug#20922.
sql/unireg.cc:
  Bug#24660: "enum" field type definition problem
  
  Use a field-separator for ENUM-values that is not part of those values. If impossible,
  throw error.

The crash happens because second filling of the same I_S table happens in
case of subselect with order by. table->sort.io_cache previously allocated
in create_sort_index() is deleted during second filling
(function get_schema_tables_result). There are two places where
I_S table can be filled: JOIN::exec and create_sort_index().
To fix the bug we should check if the table was already filled
in one of these places and skip processing of the table in second.


mysql-test/r/information_schema.result:
  test case
mysql-test/t/information_schema.test:
  test case
sql/mysql_priv.h:
  added new parameter 'executed_place' to function get_schema_tables_result()
sql/sql_select.cc:
  added new parameter 'executed_place' to function get_schema_tables_result()
sql/sql_show.cc:
  added more accurate check for cases when we need to refresh I_S table
sql/table.cc:
  added more accurate check for cases when we need to refresh I_S table
sql/table.h:
  added more accurate check for cases when we need to refresh I_S table

Some fields (GEOMETRY first of all) can't be handled properly in this
case at all. So we return an error in this case


mysql-test/r/default.result:
  result fixed
mysql-test/r/gis.result:
  result fixed
mysql-test/t/default.test:
  VIEW test added
mysql-test/t/gis.test:
  testcase added
sql/item.cc:
  set_defaults() changed with the 'reset()'

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug26159

The function make_unireg_sortorder ignored the fact that any
view field is represented by a 'ref' object.
This could lead to wrong results for the queries containing
both GROUP BY and ORDER BY clauses.


mysql-test/r/view.result:
  Added a test case for bug #26209.
mysql-test/t/view.test:
  Added a test case for bug #26209.

  Post fix for bug#12122.
information_schema.result:
  Corrected test case after fixing bug#12122.


sql/sql_view.cc:
  Post fix for bug#12122.
mysql-test/r/information_schema.result:
  Corrected test case after fixing bug#12122.

into  moonbone.local:/mnt/gentoo64/work/12122-bug-5.0-opt-mysql

A wrong order of statements in QUICK_GROUP_MIN_MAX_SELECT::reset
caused a crash when a query with DISTINCT was executed by a loose scan
for an InnoDB table that had been emptied. 


mysql-test/r/innodb_mysql.result:
  Added a test case for bug #26159.
mysql-test/t/innodb_mysql.test:
  Added a test case for bug #26159.
sql/opt_range.cc:
  Fixed bug #26159.
  A wrong order of statements in QUICK_GROUP_MIN_MAX_SELECT::reset
  caused a crash when a query with DISTINCT was executed by a loose scan
  for an InnoDB table that had been emptied. 
  For an empty table quick_prefix_select->reset() was not called at all
  and thus some important initialization steps were missing.

present.

A view created with CREATE VIEW ... ORDER BY ... cannot be resolved with
the MERGE algorithm, even when no other part of the CREATE VIEW statement
would require the view to be resolved using the TEMPTABLE algorithm.

The check for presence of the ORDER BY clause in the underlying select is 
removed from the st_lex::can_be_merged() function.
The ORDER BY list of the underlying select is appended to the ORDER BY list 


mysql-test/t/view.test:
  Added a test case for bug#12122: Views with ORDER BY can't be resolved using MERGE algorithm.
mysql-test/r/view.result:
  Added a test case for bug#12122: Views with ORDER BY can't be resolved using MERGE algorithm.
sql/sql_lex.cc:
  Bug#12122: Views with ORDER BY can't be resolved using MERGE algorithm.
  The st_lex::can_be_merged() function now allows views with the ORDER BY
  clause to be resolved using MERGE algorithm. The ORDER BY list of the view 
  is appended to the ORDER BY list of the embedding select.

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug26017