bk commit into 5.0 tree (ramil:1.1941) BUG#10568

[ramil]

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ChangeSet
  1.1941 05/06/01 17:09:46 ramil@stripped +3 -0
  A fix (bug #10568: Function 'LAST_DAY(date)' does not return NULL for invalid argument).

  sql/item_timefunc.cc
    1.83 05/06/01 17:09:38 ramil@stripped +1 -1
    A fix (bug #10568: Function 'LAST_DAY(date)' does not return NULL for invalid argument).
    Return error for partial dates as well.

  mysql-test/t/func_time.test
    1.32 05/06/01 17:09:38 ramil@stripped +8 -0
    A fix (bug #10568: Function 'LAST_DAY(date)' does not return NULL for invalid argument).

  mysql-test/r/func_time.result
    1.39 05/06/01 17:09:38 ramil@stripped +15 -0
    A fix (bug #10568: Function 'LAST_DAY(date)' does not return NULL for invalid argument).

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	ramil
# Host:	gw.mysql.r18.ru
# Root:	/usr/home/ram/work/5.0.b10568

--- 1.82/sql/item_timefunc.cc	2005-05-26 22:54:25 +05:00
+++ 1.83/sql/item_timefunc.cc	2005-06-01 17:09:38 +05:00
@@ -3015,7 +3015,7 @@
 
 bool Item_func_last_day::get_date(TIME *ltime, uint fuzzy_date)
 {
-  if (get_arg0_date(ltime,fuzzy_date))
+  if (get_arg0_date(ltime, fuzzy_date & ~TIME_FUZZY_DATE))
     return 1;
   uint month_idx= ltime->month-1;
   ltime->day= days_in_month[month_idx];

--- 1.38/mysql-test/r/func_time.result	2005-04-04 18:43:19 +05:00
+++ 1.39/mysql-test/r/func_time.result	2005-06-01 17:09:38 +05:00
@@ -688,3 +688,18 @@
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
 Note	1003	select timestamp_diff(WEEK,_latin1'2001-02-01',_latin1'2001-05-01') AS `a1`,timestamp_diff(SECOND_FRAC,_latin1'2001-02-01 12:59:59.120000',_latin1'2001-05-01 12:58:58.119999') AS `a2`
+select last_day('2005-00-00');
+last_day('2005-00-00')
+NULL
+Warnings:
+Warning	1292	Truncated incorrect datetime value: '2005-00-00'
+select last_day('2005-00-01');
+last_day('2005-00-01')
+NULL
+Warnings:
+Warning	1292	Truncated incorrect datetime value: '2005-00-01'
+select last_day('2005-01-00');
+last_day('2005-01-00')
+NULL
+Warnings:
+Warning	1292	Truncated incorrect datetime value: '2005-01-00'

--- 1.31/mysql-test/t/func_time.test	2005-01-04 15:46:42 +04:00
+++ 1.32/mysql-test/t/func_time.test	2005-06-01 17:09:38 +05:00
@@ -336,3 +336,11 @@
 
 explain extended select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a1,
 			timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a2;
+
+#
+# Bug #10568
+#
+
+select last_day('2005-00-00');
+select last_day('2005-00-01');
+select last_day('2005-01-00');