merge with 4.1

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
BitKeeper/triggers/post-commit:
  Auto merged
Docs/Support/texi2html:
  Auto merged
Makefile.am:
  Auto merged
client/Makefile.am:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqldump.c:
  Auto merged
include/my_base.h:
  Auto merged
include/my_global.h:
  Auto merged
include/my_pthread.h:
  Auto merged
include/my_sys.h:
  Auto merged
include/my_time.h:
  Auto merged
include/mysql.h:
  Auto merged
include/mysql_com.h:
  Auto merged
innobase/buf/buf0buf.c:
  Auto merged
innobase/include/row0mysql.h:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
libmysql/libmysql.c:
  Auto merged
libmysqld/examples/Makefile.am:
  Auto merged
myisam/mi_check.c:
  Auto merged
mysql-test/include/ps_modify.inc:
  Auto merged
mysql-test/install_test_db.sh:
  Auto merged
mysql-test/r/alter_table.result:
  Auto merged
mysql-test/r/auto_increment.result:
  Auto merged
mysql-test/r/bdb.result:
  Auto merged
mysql-test/r/ctype_latin1_de.result:
  Auto merged
mysql-test/r/ctype_recoding.result:
  Auto merged
mysql-test/r/fulltext.result:
  Auto merged
mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/func_if.result:
  Auto merged
mysql-test/t/derived.test:
  Auto merged
mysql-test/t/insert.test:
  merge with 4.1
  Fixed test case to not use 'if exists' when it shouldn't
mysql-test/t/range.test:
  merge with 4.1
  Added missing drop table
sql/ha_ndbcluster.cc:
  merge with 4.1
  Simple optimization: use max() instead of ? :
sql/item_func.cc:
  merge with 4.1
  (Added back old variable names for easier merges)
sql/opt_range.cc:
  merge with 4.1
  Removed argument 'parent_alloc' from QUICK_RANGE_SELECT as this was not used
  Added assert if using QUICK_GROUP_MIN_MAX_SELECT with parent_alloc as the init() function can't handle this
  Changed back get_quick_select_for_ref() to use it's own alloc root becasue this function may be called several times for one query
sql/sql_handler.cc:
  merge with 4.1
  change variable 'err' to 'error' as same function had a label named 'err'
sql/sql_update.cc:
  Use multi-update code from 5.0 instead of 4.1
  We will fix the locking code shortly in 5.0 to be faster than in 4.1

1 files changed, 73 insertions, 0 deletions

diff --git a/sql-common/my_time.c b/sql-common/my_time.c
index 703cfb089c0..dc997921f74 100644
--- a/sql-common/my_time.c
+++ b/sql-common/my_time.c
@@ -785,3 +785,76 @@ void set_zero_time(MYSQL_TIME *tm)
   tm->time_type= MYSQL_TIMESTAMP_NONE;
 }
 
+
+/*
+  Functions to convert time/date/datetime value to a string,
+  using default format.
+  This functions don't check that given TIME structure members are
+  in valid range. If they are not, return value won't reflect any
+  valid date either. Additionally, make_time doesn't take into
+  account time->day member: it's assumed that days have been converted
+  to hours already.
+
+  RETURN
+    number of characters written to 'to'
+*/
+
+int my_time_to_str(const MYSQL_TIME *l_time, char *to)
+{
+  uint extra_hours= 0;
+  return my_sprintf(to, (to, "%s%02d:%02d:%02d",
+                         (l_time->neg ? "-" : ""),
+                         extra_hours+ l_time->hour,
+                         l_time->minute,
+                         l_time->second));
+}
+
+int my_date_to_str(const MYSQL_TIME *l_time, char *to)
+{
+  return my_sprintf(to, (to, "%04d-%02d-%02d",
+                         l_time->year,
+                         l_time->month,
+                         l_time->day));
+}
+
+int my_datetime_to_str(const MYSQL_TIME *l_time, char *to)
+{
+  return my_sprintf(to, (to, "%04d-%02d-%02d %02d:%02d:%02d",
+                         l_time->year,
+                         l_time->month,
+                         l_time->day,
+                         l_time->hour,
+                         l_time->minute,
+                         l_time->second));
+}
+
+
+/*
+  Convert struct DATE/TIME/DATETIME value to string using built-in
+  MySQL time conversion formats.
+
+  SYNOPSIS
+    my_TIME_to_string()
+
+  NOTE
+    The string must have at least MAX_DATE_STRING_REP_LENGTH bytes reserved.
+*/
+
+int my_TIME_to_str(const MYSQL_TIME *l_time, char *to)
+{
+  switch (l_time->time_type) {
+  case MYSQL_TIMESTAMP_DATETIME:
+    return my_datetime_to_str(l_time, to);
+  case MYSQL_TIMESTAMP_DATE:
+    return my_date_to_str(l_time, to);
+  case MYSQL_TIMESTAMP_TIME:
+    return my_time_to_str(l_time, to);
+  case MYSQL_TIMESTAMP_NONE:
+  case MYSQL_TIMESTAMP_ERROR:
+    to[0]='\0';
+    return 0;
+  default:
+    DBUG_ASSERT(0);
+    return 0;
+  }
+}