The bug caused a crash of the server if a subquery with
ORDER BY DESC used the range access method.
The bug happened because the method QUICK_SELECT_DESC::reset
was not reworked after MRR interface had been introduced.


mysql-test/r/subselect.result:
  Added a test case for bug #20869.
mysql-test/t/subselect.test:
  Added a test case for bug #20869.

into  rurik.mysql.com:/home/igor/mysql-5.0-opt


VC++Files/sql/mysqld.dsp:
  Auto merged

Discussed with Kent.


ndb/test/ndbapi/Makefile.am:
  Fix for a compatibility build problem on MacOSX Intel.

into  macbook.gmz:/Users/kgeorge/mysql/work/B17212-5.0-opt


mysql-test/r/innodb_mysql.result:
  Merge 4.1->5.0 for bug #17212
mysql-test/t/innodb_mysql.test:
  Merge 4.1->5.0 for bug #17212
sql/sql_select.cc:
  Merge 4.1->5.0 for bug #17212

mysql-test/r/ps_7ndb.result:
  Correction for test results after pushing the fix for bug 19714.

DESCRIBE returned the type BIGINT for a column of a view if the column
was specified by an expression over values of the type INT.
    
E.g. for the view defined as follows:
  CREATE VIEW v1 SELECT COALESCE(f1,f2) FROM t1
DESCRIBE returned type BIGINT for the only column of the view if f1,f2 are
columns of the INT type.
At the same time DESCRIBE returned type INT for the only column of the table
defined by the statement:
  CREATE TABLE t2 SELECT COALESCE(f1,f2) FROM t1.
    
This inconsistency was removed by the patch.

Now the code chooses between INT/BIGINT depending on the
precision of the aggregated column type.
 
Thus both DESCRIBE commands above returns type INT for v1 and t2.
 


mysql-test/r/analyse.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/bigint.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/create.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/olap.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_2myisam.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_3innodb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_4heap.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_5merge.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_6bdb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_7ndb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/sp.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/subselect.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/type_ranges.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/view.result:
  Added a test case for bug #19714.
mysql-test/t/view.test:
  Added a test case for bug #19714.

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql


sql/item_subselect.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/subselect.result:
  Manual merge
mysql-test/t/subselect.test:
  Manual merge

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql


mysql-test/r/rpl_insert_id.result:
  Auto merged
mysql-test/t/rpl_insert_id.test:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged

into  moonbone.local:/home/evgen/bk-trees/mysql-5.0-opt


sql/item.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged

sql/item_timefunc.cc:
  Fix a valgrind warning in type_date test.	

into  dl145k.mysql.com:/data0/mkindahl/bk/mysql-5.0-rpl


ndb/include/kernel/GlobalSignalNumbers.h:
  Auto merged
ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  Auto merged
ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
  Auto merged
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/ndbapi/ndberror.c:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged

  * don't use join cache when the incoming data set is already ordered
    for ORDER BY
    This choice must be made because join cache will effectively
    reverse the join order and the results will be sorted by the index
    of the table that uses join cache.


mysql-test/r/innodb_mysql.result:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * Test suite for the bug
mysql-test/t/innodb_mysql.test:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * Test suite for the bug
sql/sql_select.cc:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * don't use join cache when the incoming data set is already sorted

into  moonbone.local:/work/16302-bug-4.1-opt-mysql


mysql-test/r/subselect.result:
  SCCS merged
mysql-test/t/subselect.test:
  SCCS merged

into  moonbone.local:/work/18503-bug-4.1-mysql


sql/sql_select.cc:
  Auto merged

may return a wrong result.

An Item_sum_hybrid object has the was_values flag which indicates whether any
values were added to the sum function. By default it is set to true and reset
to false on any no_rows_in_result() call. This method is called only in
return_zero_rows() function. An ALL/ANY subquery can be optimized by MIN/MAX
optimization. The was_values flag is used to indicate whether the subquery
has returned at least one row. This bug occurs because return_zero_rows() is
called only when we know that the select will return zero rows before
starting any scans but often such information is not known.
In the reported case the return_zero_rows() function is not called and
the was_values flag is not reset to false and yet the subquery return no rows
Item_func_not_all and Item_func_nop_all functions return a wrong
comparison result.

The end_send_group() function now calls no_rows_in_result() for each item
in the fields_list if there is no rows were found for the (sub)query.


mysql-test/t/subselect.test:
  Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
mysql-test/r/subselect.result:
  Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
sql/sql_select.cc:
  Fixed bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
  
  The end_send_group() function now calls no_rows_in_result() for each item
  in the fields_list if there is no matching rows were found.

into  moonbone.local:/work/16302-bug-4.1-opt-mysql

into  moonbone.local:/home/evgen/bk-trees/mysql-4.1-opt


sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-merge-41


sql/sql_table.cc:
  Auto merged

into  chilla.local:/home/mydev/mysql-5.0-amerge


sql/handler.h:
  Auto merged
sql/sql_table.cc:
  Auto merged

into  trift2.:/M50/mysql-5.0

into  dl145k.mysql.com:/data0/mkindahl/bk/MERGE/mysql-5.0-merge


ndb/include/kernel/GlobalSignalNumbers.h:
  Auto merged
ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  Auto merged
ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
  Auto merged
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/ndbapi/ndberror.c:
  Auto merged

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-merge-41


sql/opt_range.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
mysql-test/Makefile.am:
  Manual merge.

sql/sql_locale.cc:
  "true" -> TRUE

into  trift2.:/M50/mysql-5.0


configure.in:
  Auto merged

into  moonbone.local:/work/allany-4.1-mysql

The ALL/ANY subqueries are the subject of MIN/MAX optimization. The matter
of this optimization is to embed MIN() or MAX() function into the subquery
in order to get only one row by which we can tell whether the expression
with ALL/ANY subquery is true or false.
But when it is applied to a subquery like 'select a_constant' the reported bug
occurs. As no tables are specified in the subquery the do_select() function 
isn't called for the optimized subquery and thus no values have been added 
to a MIN()/MAX() function and it returns NULL instead of a_constant.
This leads to a wrong query result.

For the subquery like 'select a_constant' there is no reason to apply
MIN/MAX optimization because the subquery anyway will return at most one row.
Thus the Item_maxmin_subselect class is more appropriate for handling such
subqueries.

The Item_in_subselect::single_value_transformer() function now checks
whether tables are specified for the subquery. If no then this subselect is
handled like a UNION using an Item_maxmin_subselect object.


mysql-test/t/subselect.test:
  Added test case for bug#16302: Quantified subquery without any tables gives wrong results
mysql-test/r/subselect.result:
  Added test case for bug#16302: Quantified subquery without any tables gives wrong results
sql/item_subselect.cc:
  Fixed bug#16302: Quantified subquery without any tables gives wrong results
   
  The Item_in_subselect::single_value_transformer() function now checks
  whether tables are specified for the subquery. If no then this subselect is
  handled like a UNION using an Item_maxmin_subselect object.

sql/sql_locale.cc:
  Fix Windows compilation failure "cannot convert from 'const char [6]' 
  to 'const BOOL'" and an apparent bug (use of "FALSE" instead of FALSE
  for initialization of is_ascii member of MY_LOCALE)

into  gbichot3.local:/home/mysql_src/mysql-5.0

mysql-test/r/rpl_insert_id.result:
  more merge fixes for bug#14553
mysql-test/t/rpl_insert_id.test:
  more merge fixes for bug#14553

into  macbook.gmz:/Users/kgeorge/mysql/work/B14553-5.0-opt


mysql-test/r/odbc.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/rpl_insert_id.result:
  merge the test at the end of 4.1 test
mysql-test/t/rpl_insert_id.test:
  merge the test at the end of 4.1 test
sql/sql_class.cc:
  merged
sql/sql_class.h:
  merged

into  macbook.gmz:/Users/kgeorge/mysql/work/B14553-4.1-opt


sql/sql_class.cc:
  SCCS merged
sql/sql_select.cc:
  SCCS merged

To make MySQL compatible with some ODBC applications, you can find
the AUTO_INCREMENT value for the last inserted row with the following query:
 SELECT * FROM tbl_name WHERE auto_col IS NULL.
This is done with a special code that replaces 'auto_col IS NULL' with
'auto_col = LAST_INSERT_ID'.
However this also resets the LAST_INSERT_ID to 0 as it uses it for a flag
so as to ensure that only the first SELECT ... WHERE auto_col IS NULL
after an INSERT has this special behaviour.
In order to avoid resetting the LAST_INSERT_ID a special flag is introduced
in the THD class. This flag is used to restrict the second and subsequent
SELECTs instead of LAST_INSERT_ID.


mysql-test/r/odbc.result:
  test suite for the bug
mysql-test/r/rpl_insert_id.result:
  test for the fix in replication
mysql-test/t/odbc.test:
  test suite for the bug
mysql-test/t/rpl_insert_id.test:
  test for the fix in replication
sql/sql_class.cc:
  initialize the flag
sql/sql_class.h:
  flag's declaration and set code when setting the last_insert_id
sql/sql_select.cc:
  the special flag is used instead of last_insert_id

mysql-test/r/myisam.result:
  Fix test results.
mysql-test/t/myisam.test:
  In 5.0 show create table also outputs data directory.
  For the test for Bug#8706 it's MYSQLTEST_VARDIR, and there is no way
  to replace it with anything else in test output.

into  orca.ndb.mysql.com:/space_old/pekka/ndb/version/my50-1.2167.1.2


ndb/include/kernel/GlobalSignalNumbers.h:
  Auto merged
ndb/src/common/debugger/signaldata/SignalNames.cpp:
  Auto merged
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/kernel/blocks/ndbcntr/NdbcntrMain.cpp:
  Auto merged
ndb/test/run-test/daily-basic-tests.txt:
  Auto merged

ndb/src/kernel/blocks/dbdict/DictLock.txt:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD
ndb/src/kernel/blocks/dbdih/Dbdih.hpp:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD
ndb/src/kernel/vm/SimulatedBlock.cpp:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD
ndb/src/kernel/vm/SimulatedBlock.hpp:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD
ndb/test/run-test/daily-basic-tests.txt:
  wait until SL_STARTED before sending DICT_UNLOCK_ORD

ndb/include/kernel/GlobalSignalNumbers.h:
  5.0 : add NODE_START_REP from 5.1
ndb/src/common/debugger/signaldata/SignalNames.cpp:
  5.0 : add NODE_START_REP from 5.1
ndb/src/kernel/blocks/ndbcntr/NdbcntrMain.cpp:
  5.0 : add NODE_START_REP from 5.1
ndb/src/kernel/vm/SimulatedBlock.cpp:
  5.0 : add NODE_START_REP from 5.1
ndb/src/kernel/vm/SimulatedBlock.hpp:
  5.0 : add NODE_START_REP from 5.1

fails"


mysql-test/t/myisam.test:
  Fix myisam.test to work with non-default mysqltest var directory.