BUG#25712 - insert delayed and check table run together report
            crashed tables

Let MY_THREADSAFE have distinct value. Some functions call my_seek
passing MyFlags argument directly to it. This may cause unnecessary
locks, which may finally lead to a dead-lock (specifically see my_lock).

            tables

In case system doesn't have native pread/pwrite calls (e.g. Windows)
and there is CHECK TABLE runs concurrently with another statement that
reads from a table, the table may be reported as crashed.

This is fixed by locking file descriptor when my_seek is executed on
MyISAM index file and emulated pread/pwrite may be executed concurrently.

Affects MyISAM tables on platforms that do not have native
pread/pwrite calls (e.g. Windows).

No deterministic test case for this bug.

            on a BLACKHOLE table

Using INSERT DELAYED on BLACKHOLE tables could lead to server
crash.

This happens because delayed thread wants to upgrade a lock,
but BLACKHOLE tables do not have locks at all.

This patch rejects attempts to use INSERT DELAYED on MERGE
tables.

into  mysql.com:/home/svoj/devel/mysql/merge/mysql-4.1-engines

into  trift-lap.fambruehe:/MySQL/M41/push-4.1

into  mysql.com:/home/ram/work/b27515/b27515.4.1

into  mysql.com:/home/ram/work/b27515/b27515.4.1

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/41

into  debian.(none):/M41/push-4.1

Support for NULL components was incomplete for row comparison,
fixed.  Added support for abort_on_null at compare_row() like
in 5.x

into  mysql.com:/home/svoj/devel/mysql/BUG24342/mysql-4.1-engines

into  siva.hindu.god:/home/tsmith/m/bk/maint/41

into  trift2.:/MySQL/M41/push-4.1

Added missed DROP privilege check on the original table for RENAME TABLE command.

into  mysql.com:/d2/hf/mrg/mysql-4.1-opt

IGNORE/USE/FORCE INDEX hints were honored when choosing FULLTEXT
index.

With this fix these hints are ignored. For regular indexes we may
perform table scan instead of index lookup when IGNORE INDEX was
specified. We cannot do this for FULLTEXT in NLQ mode.

into  whalegate.ndb.mysql.com:/home/tomas/mysql-4.1-opt

are used as arguments of the IN predicate.
Added a function to check compatibility of row expressions. Made sure that this
function to be called for Item_func_in objects by fix_length_and_dec().

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

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

  fix commit trigger on multi-update

into  mysql.com:/home/kent/bk/tmp3/mysql-4.1-build

MERGE engine may return incorrect values when several representations
of equal keys are present in the index. For example "groß" and "gross"
or "gross" and "gross " (trailing space), which are considered equal,
but have different lengths.

The problem was that key length was not recalculated after key lookup.

Only MERGE engine is affected.

into  pilot.blaudden:/home/msvensson/mysql/mysql-4.1-maint

into  pilot.blaudden:/home/msvensson/mysql/mysql-4.1-maint

into  trift2.:/MySQL/M41/push-4.1

into  mysql.com:/d2/hf/mrg/mysql-4.1-opt

Usage:
  query_sorted <query>;

Cleanup exit handling

  configure.in.rej
  include/my_global.h.rej
  BUILD/SETUP.sh.rej
  mysys/thr_alarm.c.rej
  include/my_pthread.h.rej

   - length($sockdir) >= 80 !!

error code indicating test should be skipped

"if with query" and "while with query"