will call handler::position() during key scan. 
Undo the previous, less efficient fix (cset 2004-11-30 19:56:25+02:00, heikki@hundin.mysql.fi)

into mysql.com:/home/cps/mysql/trees/mysql-5.0

This fix icludes workaround for Irix compiler bug & removs some unused
variables (resulted in warnings)

into mysql.com:/home/dlenev/src/mysql-5.0-tzbug

into hundin.mysql.fi:/home/jan/mysql-5.0

into mysql.com:/home/dlenev/src/mysql-5.0-tzbug

into gw.mysql.r18.ru:/usr/home/ram/work/5.0.b7283

into mysql.com:/home/dlenev/src/mysql-5.0-tzbug

into gw.mysql.r18.ru:/usr/home/ram/work/5.0.b7283

into mysql.com:/home/dlenev/src/mysql-5.0

into mysql.com:/dbdata/psergey/mysql-5.0-nov-clean

so we read dependent tables after tables they depend on (this is needed for outer joins)

into polly.local:/home/kaa/src/mysql-5.0

processing.

into mysql.com:/home/my/mysql-5.0

Fixed some found bugs in BIT fields
Added more test cases for BIT fields and varchar

into mysql.com:/home/dlenev/src/mysql-5.0

into mysql.com:/home/dlenev/src/mysql-5.0-tzbug

into polly.local:/home/kaa/src/mysql-5.0

into mysql.com:/home/dlenev/src/mysql-5.0

We should not call free_tmp_table() for derived table in 
mysql_derived_filling(), since by this moment this table is already
registered in THD::derived_tables list and thus free_tmp_table() will
be called for it automatically in close_thread_tables().

into mysql.com:/home/dlenev/src/mysql-5.0-tzbug

  Put a sensible value of thread id and process no to a background rollback transaction

  Fix the rollback progress printout in crash recovery

  Print progress of background rollback of transactions with more than 1000 undo log entries
srv0start.c, trx0roll.c, log0recv.c, trx0roll.h:
  Cleanup background rollback code in crash recovery; do not flush all modified pages from the buffer pool after a crash recovery: this makes mysqld accesible for users more quickly

  Do not use short int in rem0rec.ic, since its size is not fixed in ANSI C; improve comments of the relative offset field in a record; use mach_read_from_2() to read the relative offset field to save CPU time, if the compiler does not optimize a more complex access function

into mysql.com:/home/my/mysql-5.0

Add support for VARCHAR with 1 or 2 length bytes
Enable VARCHAR packing in MyISAM files (previous patch didn't pack data properly)
Give error if we got problems in temporary tables during a SELECT
Don't use new table generated by ALTER TABLE if index generation fails
Fixed wrong call by range_end() (Could cause an ASSERT in debug mode)