Merge with 5.1-microseconds

A lot of small fixes and new test cases.

client/mysqlbinlog.cc:
  Cast removed
client/mysqltest.cc:
  Added missing DBUG_RETURN
include/my_pthread.h:
  set_timespec_time_nsec() now only takes one argument
mysql-test/t/date_formats.test:
  Remove --disable_ps_protocl as now also ps supports microseconds
mysys/my_uuid.c:
  Changed to use my_interval_timer() instead of my_getsystime()
mysys/waiting_threads.c:
  Changed to use my_hrtime()
sql/field.h:
  Added bool special_const_compare() for fields that may convert values before compare (like year)
sql/field_conv.cc:
  Added test to get optimal copying of identical temporal values.
sql/item.cc:
  Return that item_int is equal if it's positive, even if unsigned flag is different.
  Fixed Item_cache_str::save_in_field() to have identical null check as other similar functions
  Added proper NULL check to Item_cache_int::save_in_field()
sql/item_cmpfunc.cc:
  Don't call convert_constant_item() if there is nothing that is worth converting.
  Simplified test when years should be converted
sql/item_sum.cc:
  Mark cache values in Item_sum_hybrid as not constants to ensure they are not replaced by other cache values in compare_datetime()
sql/item_timefunc.cc:
  Changed sec_to_time() to take a my_decimal argument to ensure we don't loose any sub seconds.
  Added Item_temporal_func::get_time() (This simplifies some things)
sql/mysql_priv.h:
  Added Lazy_string_decimal()
sql/mysqld.cc:
  Added my_decimal constants max_seconds_for_time_type, time_second_part_factor
sql/table.cc:
  Changed expr_arena to be of type CONVENTIONAL_EXECUTION to ensure that we don't loose any items that are created by fix_fields()
sql/tztime.cc:
  TIME_to_gmt_sec() now sets *in_dst_time_gap in case of errors
  This is needed to be able to detect if timestamp is 0
storage/maria/lockman.c:
  Changed from my_getsystime() to set_timespec_time_nsec()
storage/maria/ma_loghandler.c:
  Changed from my_getsystime() to my_hrtime()
storage/maria/ma_recovery.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/maria/unittest/trnman-t.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/xtradb/handler/ha_innodb.cc:
  Added support for new time,datetime and timestamp
unittest/mysys/thr_template.c:
  my_getsystime() -> my_interval_timer()
unittest/mysys/waiting_threads-t.c:
  my_getsystime() -> my_interval_timer()

1 files changed, 3 insertions, 3 deletions

diff --git a/sql/event_data_objects.cc b/sql/event_data_objects.cc
index 959f6ec06c0..6e2aa013d88 100644
--- a/sql/event_data_objects.cc
+++ b/sql/event_data_objects.cc
@@ -927,7 +927,7 @@ Event_queue_element::compute_next_execution_time()
     goto ret;
   }
 
-  time_now= (my_time_t) current_thd->query_start();
+  time_now= current_thd->query_start();
 
   DBUG_PRINT("info",("NOW: [%lu]", (ulong) time_now));
 
@@ -1130,7 +1130,7 @@ err:
 void
 Event_queue_element::mark_last_executed(THD *thd)
 {
-  last_executed= (my_time_t) thd->query_start();
+  last_executed= thd->query_start();
   last_executed_changed= TRUE;
 
   execution_count++;
@@ -1190,7 +1190,7 @@ append_datetime(String *buf, Time_zone *time_zone, my_time_t secs,
   */
   MYSQL_TIME time;
   time_zone->gmt_sec_to_TIME(&time, secs);
-  buf->append(dtime_buff, my_datetime_to_str(&time, dtime_buff));
+  buf->append(dtime_buff, my_datetime_to_str(&time, dtime_buff, 0));
   buf->append(STRING_WITH_LEN("'"));
 }