into mysql.com:/dbdata/psergey/mysql-4.1-merge-fix

 * Backport of safety measures from 5.0: make numeorous replaces:
    s/item->fix_fields()/if (!item->fixed) item->fix_fields()

into mysql.com:/home/jwinstead2/mysql-4.1

 * Added Item_ref::set_properties 
 * Item_ref::Item_ref now expects to get in *item either
     NULL - then fix_fields() will be called later  or 
     ptr to Item it will refer to - then an equivalent of fix_fields() call is performed

into mysql.com:/home/mysql_src/mysql-4.1-clean

  without the PS protocol

  s/spaces/TAB/

  Add running of test suite with --ps-protocol to 'test' target

into mysql.com:/home/jwinstead2/mysql-4.1

into mysql.com:/dbdata/psergey/mysql-4.1-merge

The problem in 4.1 was the same as in 4.0 - fix_fields() not called for created Item_ref. 
The fix is similar too - initialize Item_refs in ctor (but don't interfere with cases when 
Item_ref is used by subselects). 

into mysql.com:/home/mysql_src/mysql-4.1-clean

into pcgem.rdg.cyberkinetica.com:/usr/home/acurtis/work/wl2274.2

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

  quick fix for wrong allocation of size

into sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1

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

changed back to just restricting max meta objects in dict to make sure we can "always" configure ourselves out of unforseen limits

into sanja.is.com.ua:/home/bell/mysql/bk/work-ref-4.1

  UPDATE clause conflicts with SELECT for use of item_list field.
  Alter UPDATE clause to use new lex field update_list
  Tests included

+ fixed testcase

  dict_load_table(): detect the new table format of MySQL 5.0.3

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

  changed help text

    added start backup parameter to enable setting wait state
    and set different timeouts depending on waitstate
    moved listen of backup event out of backup and into separete thread
    thread created at connect() and destroyed at disconnect()
    added start backup command options "nowait" "wait completed" "wait started"
    fixed log level settings

into sanja.is.com.ua:/home/bell/mysql/bk/work-ref-4.1

into mysql.com:/dbdata/psergey/mysql-4.0-bug6976

In Item_ref::Item_ref set maybe_null (and other fields fix_fields sets) to be the 
same as in (*ref), because Item_ref::fix_fields() will not be called.  Previously 
maybe_null was 0 always and this produced a bogus state where 
maybe_null==0 && is_null() == true 
which broke evaluation for some upper-level Items, like AND and OR.

refernces if subqueri is not in HAVING clause (BUG#7079)
  and the same used for subquery transformetion