Very complex select statements can create temporary tables
that are too big to be represented as a MyISAM table.

This was not checked at table creation time, but only at
open time. The result was an attempt to delete the 
"impossible" table.

But if the server is built --with-raid, MyISAM tries to 
open the table before deleting the files. It needs to find 
out if the table uses the raid support and how many raid 
chunks there are. This is done with an open "for repair",
which will almost always succeed.

But in this case we have an "impossible" table. The open
failed. Hence the files were not deleted. Also the error
message was a bit unspecific.

I turned an open error in this situation into the assumption 
of having no raid support on the table. Thus the normal data 
file is tried to be deleted. This may however leave existing 
raid chunks behind.

I also added a check in mi_create() to prevent the creation
of an "impossible" table. A more decriptive error message is
given in this case.

No test case. The required select statement is way too
large for the test suite. I added a test script to the
bug report.


myisam/mi_create.c:
  Bug#11824 - internal /tmp/*.{MYD,MYI} files remain, causing subsequent queries to fail
  Added a check to mi_create() that the table description
  header of the index file does not exceed 64KB. The header
  has only 16 bits to encode its length.
myisam/mi_delete_table.c:
  Bug#11824 - internal /tmp/*.{MYD,MYI} files remain, causing subsequent queries to fail
  Interpret error in table open as not having a raid
  configuration on the tbale. Thus try to delete the
  normal data file, but leave behind raid chunks if 
  they exist.

  An UNIQUE KEY consisting of NOT NULL columns
  was displayed as PRIMARY KEY in "DESC t1".
  According to the code, that was intentional
  behaviour for some reasons unknown to me.
  This code was written before bitkeeper time,
  so I cannot check who and why made this.
  After discussing on dev-public, a decision
  was made to remove this code


mysql-test/r/key.result:
  Adding test case.
mysql-test/t/key.test:
  Adding test case.
sql/table.cc:
  Removing old wrong code

  Disable the simplistic auto dependency scan for test/bench (bug#20078)


support-files/mysql.spec.sh:
  Disable the simplistic auto dependency scan for test/bench (bug#20078)

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

This bug in Field_string::cmp resulted in a wrong comparison 
with keys in partial indexes over multi-byte character fields.
Given field a is declared as a varchar(16) collate utf8_unicode_ci
INDEX(a(4)) gives us an example of such an index.
  
Wrong key comparisons could lead to wrong result sets if 
the selected query execution plan used a range scan by 
a partial index over a utf8 character field.
This also caused wrong results in many other cases.


mysql-test/t/ctype_utf8.test:
  Added test cases for bug #14896.
mysql-test/r/ctype_utf8.result:
  Added test cases for bug #14896.
sql/field.cc:
  Fixed bug #14896.
  This bug in Field_string::cmp resulted in a wrong comparison 
  with keys in partial indexes over multi-byte character fields.
  Given field a is declared as a varchar(16) collate utf8_unicode_ci
  INDEX(a(4)) gives us an example of such an index.
       
  Wrong key comparisons could lead to wrong result sets if 
  the selected query execution plan used a range scan by 
  a partial index over a utf8 character field.
  This also caused wrong results in many other cases.

into  may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1

into  may.pils.ru:/home/svoj/devel/mysql/BUG20357/mysql-4.1


sql/opt_sum.cc:
  Auto merged
mysql-test/r/myisam.result:
  SCCS merged
mysql-test/t/myisam.test:
  SCCS merged

            functions in queries

Using MAX()/MIN() on table with disabled indexes (by ALTER TABLE)
results in error 124 (wrong index) from storage engine.

The problem was that optimizer use disabled index to optimize
MAX()/MIN(). Normally it must skip disabled index and perform
table scan.

This patch skips disabled indexes for min/max optimization.


mysql-test/r/myisam.result:
  Test case for BUG#20357.
mysql-test/t/myisam.test:
  Test case for BUG#20357.
sql/opt_sum.cc:
  Skip disabled/ignored indexes for min/max optimization.

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Added test case for bug#18759 Incorrect string to numeric conversion.  
select.test:
  Added test case for bug#18759 Incorrect string to numeric conversion.
item_cmpfunc.cc:
  Cleanup after fix for bug#18360 removal


sql/item_cmpfunc.cc:
  Cleanup after fix for bug#18360 removal
mysql-test/t/select.test:
  Added test case for bug#18759 Incorrect string to numeric conversion.
mysql-test/r/select.result:
  Added test case for bug#18759 Incorrect string to numeric conversion.

into  mysql.com:/usr/home/ram/work/mysql-4.1


mysql-test/r/func_str.result:
  merge (ul)
mysql-test/t/func_str.test:
  merge (ul)
sql/item_strfunc.cc:
  merge (ul)
sql/item_strfunc.h:
  merge (ul)

into  mysql.com:/usr/home/ram/work/mysql-4.1

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Reverted fix for bug#18360


mysql-test/t/func_in.test:
  Reverted fix for bug#18360
mysql-test/r/func_in.result:
  Reverted fix for bug#18360
sql/item_cmpfunc.cc:
  Reverted fix for bug#18360

into  mysql.com:/home/kgeorge/mysql/4.1/B9676

              tables
Currently in INSERT ... SELECT ... LIMIT ... the compiler uses a 
temporary table to store the results of SELECT ... LIMIT .. and then
uses that table as a source for INSERT. The problem is that in some cases
it actually skips the LIMIT clause in doing that and materializes the 
whole SELECT result set regardless of the LIMIT.
This fix is limiting the process of filling up the temp table with only 
that much rows that will be actually used by propagating the LIMIT value.


mysql-test/r/insert_select.result:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
mysql-test/t/insert_select.test:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
sql/sql_select.cc:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - pass through the real LIMIT number if the temp table is created for
    buffering results.
  - set the counter for all the cases when the temp table is not used for
    grouping

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into  may.pils.ru:/home/svoj/devel/mysql/BUG18036/mysql-4.1

Certain updates of table joined to self results in unexpected
behavior.

The problem was that record cache was mistakenly enabled for
self-joined table updates. Normally record cache must be disabled
for such updates.

Fixed wrong condition in code that determines whether to use
record cache for self-joined table updates.

Only MyISAM tables were affected.


mysql-test/r/myisam.result:
  Test case for BUG#18036.
mysql-test/t/myisam.test:
  Test case for BUG#18036.
sql/sql_update.cc:
  Fixed wrong condition in code that determines whether to use
  record cache for self-joined table updates.

mysql-test/r/func_time.result:
  Fix for bug #20496: func_time.test failure                                      
    - floating point calculations removed.
mysql-test/t/func_time.test:
  Fix for bug #20496: func_time.test failure                                      
    - floating point calculations removed.

into moonbone.local:/work/tmp_merge-4.1-opt-mysql

  Avoid error message trying 'windoze-dsp' in obsolete directory
compile-dist:
  Avoid error message for target 'distclean' and no Makefile


BUILD/compile-dist:
  Avoid error message for target 'distclean' and no Makefile
ndb/Makefile.am:
  Avoid error message trying 'windoze-dsp' in obsolete directory

  Make output less verbose
  Make temporary directory name unique
  Remove temporary directory on interrupt


scripts/make_win_src_distribution.sh:
  Make output less verbose
  Make temporary directory name unique
  Remove temporary directory on interrupt

  Include "sql_yacc.yy" for completeness (bug#20387)


scripts/make_win_src_distribution.sh:
  Include "sql_yacc.yy" for completeness (bug#20387)
  Improved error handling
  Don't list all files packed with tar/zip unless debugging

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

  Delete: netware/mysql_install.def
Makefile.am:
  Removed obsolete "mysql_install.def"


netware/Makefile.am:
  Removed obsolete "mysql_install.def"
BitKeeper/deleted/.del-mysql_install.def~8da659e7c0f7e571:
  Delete: netware/mysql_install.def

  Fix for bug#16716 for --ps-protocol mode.
item_cmpfunc.cc:
  Fix for a memory allocation/freeing problem in agg_cmp_type() after fix
for bug#16377. Few language corrections.


sql/item_cmpfunc.cc:
  Fix for a memory allocation/freeing problem in agg_cmp_type(). Few language corrections.
sql/item_strfunc.cc:
  Fix for bug#16716 for --ps-protocol mode.

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-4.1-merge

into moonbone.local:/work/16377-4.1-after

  Post fix for bug#16377


mysql-test/r/cast.result:
  Post fix for bug#16377
sql/item_cmpfunc.h:
  Post fix for bug#16377

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


sql/item_strfunc.cc:
  Auto merged

into  mysql.com:/usr/home/ram/work/4.1.b15558

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main

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

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main


sql/ha_ndbcluster.cc:
  Auto merged

- correction of backport error

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-main


sql/ha_ndbcluster.cc:
  Auto merged