log-slave-updates and circul repl

After merge fixes.

into  mysql.com:/home/svoj/devel/mysql/BUG13861/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG13861/mysql-5.0-engines

(Missed a change of printf format)

Fixed a missed case in the patch for Bug#31931.
Also makes Bug#33722 a duplicate of Bug#31931.
Added tests for better coverage.
Replaced some legacy function calls.

Test file fixes for bugs 20129, 31931 and 34225

into  witty.:/Users/mattiasj/clones/topush-51

into  witty.:/Users/mattiasj/clones/topush-51

into  mysql.com:/home/ram/work/b33304/b33304.5.0

into  mysql.com:/home/ram/work/b33304/b33304.5.1

            log-slave-updates and circul repl

Slave SQL thread may execute one extra event when there are events
skipped by slave I/O thread (e.g. originated by the same server).
Whereas it was requested not to do so by the UNTIL condition.

This happens because we compare with the end position of previously
executed event. This is fine when there are no skipped by slave I/O
thread events, as end position of previous event equals to start
position of to be executed event. Otherwise this position equals to
start position of skipped event.

This is fixed by:
- reading the event to be executed before checking if the until condition
  is satisfied.
- comparing the start position of the event to be executed. Since we do
  not have the start position available, we compute it by subtracting
  event length from end position (which is available).
- if there are no events on the event queue at the slave sql starting
  time, that meet until condition, we stop immediately, as in this
  case we do not want to wait for next event.

into  xiphis.org:/anubis/antony/work/merge.20080220/mysql-5.1

into  xiphis.org:/anubis/antony/work/merge.20080220/mysql-5.1

into  xiphis.org:/anubis/antony/work/merge.20080220/mysql-5.0

into  mysql.com:/home/svoj/devel/mysql/BUG34289/mysql-5.1-engines

ndb data to be logged has made it to the binary log to get a deterministic
behavior on the rotation of the log.

into  xiphis.org:/anubis/antony/work/p1-bug34598.2.merge.1

  "crash on hpita: Invalid address alignment"
  Replace dangerous pointer arithmetic - it may occurr where sizeof(int) is
  less than size of machine alignment requirement.

into  poseidon.bredbandsbolaget.se:/home/tomas/mysql-5.1-new-ndb-merge

            breaks replication

NAME_CONST() didn't replicate constant character set and collation
correctly.

With this fix NAME_CONST() inherits collation from the value argument.

into  mysql.com:/home/ram/work/b33304/b33304.5.1

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

Problem: SLEEP(0) never returns on 64-bit Mac OS X due to a bug in 
pthread_cond_timedwait().

Fix: when given a very short timeout just return immediately.

failing on heavily loaded systems.

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.1-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  stella.local:/home2/mydev/mysql-5.0-axmrg

into  mysql.com:/home/svoj/devel/mysql/BUG33946/mysql-5.1-engines

            from storage engine

Federated may crash a server, return wrong result set, return
"ERROR 1030 (HY000): Got error 1430 from storage engine" message
when local (engine=federated) table has a key against nullable
column.

The problem was wrong implementation of function that creates
WHERE clause for remote query from key.

BUG#24387, which is closed since long.