Adding decimal "digits" in multiplication resulted in signed overflow and
producing wrong results.

  Fixed by using large enough buffers and intermediary result types :
dec2 (currently longlong) to hold result of adding decimal "digits" 
(currently int32). 


mysql-test/r/select.result:
  Bug #20569 Garbage in DECIMAL results from some mathematical functions
    * test suite for the bug
mysql-test/t/select.test:
  Bug #20569 Garbage in DECIMAL results from some mathematical functions
    * test suite for the bug
strings/decimal.c:
  Bug #20569 Garbage in DECIMAL results from some mathematical functions
    * fixed the overflow in adding decimal "digits"

mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
mysql-test/r/func_time.result:
  SCCS merged
mysql-test/t/func_time.test:
  SCCS merged

into moonbone.local:/work/merge-5.0


sql/sql_select.cc:
  Auto merged
strings/ctype-mb.c:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/5.0-merge


sql/ha_ndbcluster.cc:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/5.0-merge

into moonbone.local:/work/merge-4.1

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

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main


sql/ha_ndbcluster.cc:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main


sql/ha_ndbcluster.cc:
  Auto merged

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0


sql/ha_ndbcluster.cc:
  manual merge

into  poseidon.ndb.mysql.com:/home/tomas/5.0-merge

include/my_sys.h:
  Auto merged
mysql-test/r/federated.result:
  Auto merged
mysql-test/t/federated.test:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/log.cc:
  Auto merged

Re-apply a patch by Knielsen in the 5.0.23 build clone: Replace port number by "SLAVE_PORT".


mysql-test/r/federated.result:
  Re-apply a patch by Knielsen in the 5.0.23 build clone: Replace port number by "SLAVE_PORT".
mysql-test/t/federated.test:
  Re-apply a patch by Knielsen in the 5.0.23 build clone: Replace port number by "SLAVE_PORT".

into  mysql.com:/opt/local/work/mysql-5.0-runtime

into  mysql.com:/users/lthalmann/bkroot/mysql-5.0-release

into  mysql.com:/opt/local/work/mysql-5.0-runtime

into  mysql.com:/opt/local/work/mysql-5.0-runtime

into  mysql.com:/home/stewart/Documents/MySQL/4.1/main

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.0-merge


include/my_sys.h:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/log.cc:
  Auto merged

into  mysql.com:/users/lthalmann/bkroot/mysql-5.0-release


include/my_sys.h:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/log.cc:
  Auto merged

into  mysql.com:/home/stewart/Documents/MySQL/5.0/main


sql/ha_ndbcluster.cc:
  Auto merged

into  mysql.com:/opt/local/work/mysql-5.0-runtime


mysql-test/r/variables.result:
  Auto merged
mysql-test/r/information_schema.result:
  Manual merge.

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.0-release

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.0-main

+ adopted signal to be as close as possible to 5.1...

mysql-test/t/trigger.test:
  Replace all numeric error code with symbolic names.
  Left are --error 1 for system error, and --error 1100.  The
  symbolic constant for the latter is ER_TABLE_NOT_LOCKED, but using
  it triggers a bug in test driver due to name prefix collision with
  1099 ER_TABLE_NOT_LOCKED_FOR_WRITE.  This bug is fixed in 5.1.

  Fix compile error for forte


ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
  Fix compile error for forte

into  mysql.com:/data0/knielsen/tmp-5.0


mysql-test/r/federated.result:
  Auto merged
mysql-test/t/federated.test:
  Auto merged

mysql-test/t/federated.test:
  Use --replace_result to make test work on non-standard ports.
mysql-test/r/federated.result:
  Use --replace_result to make test work on non-standard ports.

mysql-test/t/federated.test:
  Use --replace_result to make test work on non-standard ports.
mysql-test/r/federated.result:
  Use --replace_result to make test work on non-standard ports.

into  mysql.com:/home/kgeorge/mysql/5.0/warnings


sql/opt_range.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/item_cmpfunc.h:
  resolve the conflicts in 4.1->5.0 merge of the gcc 4.1 warnings in favor of 
  5.0 code
sql/spatial.h:
  resolve the conflicts in 4.1->5.0 merge of the gcc 4.1 warnings in favor of 
  5.0 code
sql/sql_select.h:
  resolve the conflicts in 4.1->5.0 merge of the gcc 4.1 warnings in favor of 
  5.0 code

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

into  mysql.com:/home/tomash/src/mysql_ab/mysql-5.0-bug10946


mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/sql_trigger.cc:
  Auto merged

It was hard to distinguish case, when one was unable to create trigger
on the table because trigger with same action time and event already
existed for this table, from the case, when one tried to create trigger
with name which was already occupied by some other trigger, since in
both these cases we emitted ER_TRG_ALREADY_EXISTS error and message.
Now we emit ER_NOT_SUPPORTED_YET error with appropriate additional
message in the first case. There is no sense in introducing separate
error for this situation since we plan to get rid of this limitation
eventually.


mysql-test/r/trigger.result:
  Update result for new error message.
mysql-test/t/trigger.test:
  Update test for new error code.
sql/sql_trigger.cc:
  If there is already a trigger with the same activation time, report an
  "Unsupported yet" error.

No test case as the bug is in an existing test case (rpl_trigger.test
when it is run under valgrind).
The warning was caused by memory corruption in replication slave: thd->db
was pointing at a stack address that was previously used by 
sp_head::execute()::old_db. This happened because mysql_change_db
behaved differently in replication slave and did not make a copy of the 
argument to assign to thd->db. 
The solution is to always free the old value of thd->db and allocate a new
copy, regardless whether we're running in a replication slave or not.


sql/log_event.cc:
  Move rewrite_db to log_event.cc, the only place where it is used.
sql/slave.cc:
  Move rewrite_db to log_event.cc
sql/slave.h:
  Remove an unneeded declaration.
sql/sql_class.h:
  Fix set_db to always free the old db, even if the argument is NULL.
  Add a comment.
sql/sql_db.cc:
  Always make a deep copy of the argument in mysql_change_db, even 
  if running in a replication slave. This is necessary because 
  sp_use_new_db (stored procedures) assumes that mysql_change_db always makes
  a deep copy of the argument, and thus passes a pointer to stack into it.
  This assumption was true for all cases except the replication slave thread.