additional check for subselect

Crash happened when one selected data from one of INFORMATION_SCHEMA
tables and in order to build its contents server had to open view which
used stored function and table or view on which one had not global or
database-level privileges (e.g. had only table-level or had no
privileges at all).

The crash was caused by usage of check_grant() function, which assumes
that either number of tables to be inspected by it is limited explicitly
or table list used and thd->lex->query_tables_own_last value correspond
to each other (the latter should be either 0 or point to next_global
member of one of elements of this table list), in conditions when
above assumptions were not true. This fix just explicitly limits
number of tables to be inspected. Other negative effects which are
caused by the fact that thd->lex->query_tables_own_last might not
be set properly during processing of I_S tables are less disastrous
and will be reported and fixed separetely.

into  calliope.local:/Volumes/Source/src/mysql-5.0__bug15846

  NDB_VERSION_BUILD has to be numeric

  Changed release name to 5.0.19a
ha_innodb.cc:
  InnoDB used table locks (not row locks) within stored functions. (Bug #18077)

into  mysql.com:/home/emurphy/src/mysql/bk-clean/mysql-5.0

to binlog too much.

When InnoDB has to rollback a transaction because the lock table has
filled up, it also needs to inform the upper layer that the transaction
was rolled back so that the cached transaction is not written to the
binary log.

into  production.mysql.com:/usersnfs/abelkin/work-qc-5.0

into  mysql.com:/usr/local/mysql/mysql-5.0

into  xiphis.org:/home/antony/work2/p1-bug14575.1

into  shellback.(none):/home/msvensson/mysql/mysql-5.0

  ¨MySQL server crashes if you try to access to InnoDB table¨
  crash caused by schizophrenic mysqld - 2 memory locations for logically same function
  with conflicting values.
  Fixed by backporting from 5.1 changes to have_xyz_db declarations.

because it can couse problem with Query cache (BUG#14767)

into  kite-hub.kitebird.com:/src/extern/MySQL/bk/mysql-5.0-r1.2084

  Backport option description change from 5.1 to 5.0.

  Afterfix for bug#17366: Unchecked Item_int results in server crash

 - Add HAVE_OPENSSL and HAVE_YASSL to config-win.h

into sunlight.local:/work_local/17336-bug-5.0-mysql

When there is conjunction of conds, the substitute_for_best_equal_field()
will call the eliminate_item_equal() function in loop to build final
expression. But if eliminate_item_equal() finds that some cond will always
evaluate to 0, then that cond will be substituted by Item_int with value ==
0. In this case on the next iteration eliminate_item_equal() will get that 
Item_int and treat it as Item_cond. This is leads to memory corruption and
server crash on cleanup phase.

To the eliminate_item_equal() function was added DBUG_ASSERT for checking
that all items treaten as Item_cond are really Item_cond.
The substitute_for_best_equal_field() now checks that if
eliminate_item_equal() returns Item_int and it's value is 0 then this 
value is returned as the result of whole conjunction.

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

into  perch.ndb.mysql.com:/home/jonas/src/mysql-4.1

into  perch.ndb.mysql.com:/home/jonas/src/50-work

into  perch.ndb.mysql.com:/home/jonas/src/mysql-4.1

    ndb crash if trigger record get to big, fix incorrect max size of trigger record

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

  ndb crash if trigger record get to big, fix incorrect max size of trigger record

into  shellback.(none):/home/msvensson/mysql/mysql-5.0

into  mysql.com:/usr_rh9/home/elkin.rh9/MySQL/FIXES/5.0.20-bug15101-sysdate

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

into  mysql.com:/home/mydev/mysql-4.1-bug14980

into  mysql.com:/home/mydev/mysql-5.0-bug14980

Now DEFINER-clause in stored routines is expected to appear
in 5.0.20 release, not in 5.0.19. as it was supposed before.

into mysql.com:/M50/merge-5.0