PS-protocol data is stored in different format - the MYSQL_RECORDS->data
contains the link to the record content, not to array of the links to
the field's contents. So we have to handle it separately for
embedded-server query cache.

into  mysql.com:/home/hf/work/31893/my51-31893

into  mysql.com:/misc/mysql/31800/51-31800

into  mysql.com:/misc/mysql/31800/51-31800

BETWEEN was more lenient with regard to what it accepted as a DATE/DATETIME
in comparisons than greater-than and less-than were. ChangeSet makes < >
comparisons similarly robust with regard to trailing garbage (" GMT-1")
and "missing" leading zeros. Now all three comparators behave similarly
in that they throw a warning for "junk" at the end of the data, but then
proceed anyway if possible. Before < > fell back on a string- (rather than
date-) comparison when a warning-condition was raised in the string-to-date
conversion. Now the fallback only happens on actual errors, while warning-
conditions still result in a warning being to delivered to the client.

into  mysql.com:/misc/mysql/31990/51-31990

into  mysql.com:/misc/mysql/31990/51-31990

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.0-opt

into  polly.(none):/home/kaa/src/opt/bug32020/my51-bug31445

causes out of memory errors

The code in mysql_create_function() and mysql_drop_function() assumed
that the only reason for UDFs being uninitialized at that point is an
out-of-memory error during initialization. However, another possible 
reason for that is the --skip-grant-tables option in which case UDF 
initialization is skipped and UDFs are unavailable.

The solution is to check whether mysqld is running with
--skip-grant-tables and issue a proper error in such a case.

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.0-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.0-opt

into  polly.(none):/home/kaa/src/opt/mysql-4.1-opt

into  polly.(none):/home/kaa/src/opt/bug32103/my51-bug26215

into  polly.(none):/home/kaa/src/opt/bug32103/my50-bug26215

HOUR(), MINUTE(), ... returned spurious results when used on a DATE-cast.
This happened because DATE-cast object did not overload get_time() method
in superclass Item. The default method was inappropriate here and
misinterpreted the data.

Patch adds missing method; get_time() on DATE-casts now returns SQL-NULL
on NULL input, 0 otherwise. This coincides with the way DATE-columns
behave.

variable in where clause.

Problem: the new_item() method of Item_uint used an incorrect
constructor. "new Item_uint(name, max_length)" calls
Item_uint::Item_uint(const char *str_arg, uint length) which assumes the
first argument to be the string representation of the value, not the
item's name. This could result in either a server crash or incorrect
results depending on usage scenarios.

Fixed by using the correct constructor in new_item():
Item_uint::Item_uint(const char *str_arg, longlong i, uint length).

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

Calculating the estimated number of records for a range scan may take a
significant time, and it was impossible for a user to interrupt that
process by killing the connection or the query.

Fixed by checking the thread's 'killed' status in check_quick_keys() and
interrupting the calculation process if it is set to a non-zero value.

into  mysql.com:/home/hf/work/31758/my51-31758

into  mysql.com:/home/hf/work/31758/my51-31758

into  mysql.com:/home/hf/work/31758/my50-31758

into  mysql.com:/home/hf/work/31758/my51-31758

into  mysql.com:/home/hf/work/31758/my50-31758

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.0-opt

into  polly.(none):/home/kaa/src/opt/bug26215/my51-bug26215

the length of the remaining input string.

This is to fix mysqldump test failure in PB introduced by the patch
for bug #26215.

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.1-opt

into  polly.(none):/home/kaa/src/opt/mysql-5.0-opt