Bug#56271: Wrong comparison result with STR_TO_DATE function

The Item_func_str_to_date class wasn't providing correct integer DATETIME
representation as expected. This led to wrong comparison result and didn't
allowed the STR_TO_DATE function to be used with indexes.
Also, STR_TO_DATE function was inconsisted on throwing warnings/errors.
Fixed now.

val_int and result_as_longlong methods were added to the Item_func_str_to_date
class. 

mysql-test/r/func_time.result:
  Test case result adjusted after fixing bug#56271.
mysql-test/r/parser.result:
  Test case result adjusted after fixing bug#56271.
mysql-test/r/select.result:
  A test case result adjusted after fixing bug#56271.
mysql-test/r/strict.result:
  Test case result adjusted after fixing bug#56271.
mysql-test/r/type_datetime.result:
  Added a test case for the bug#56271.
mysql-test/t/strict.test:
  Test case adjusted after fixing bug#56271.
mysql-test/t/type_datetime.test:
  Added a test case for the bug#56271.
sql/item_timefunc.cc:
  Bug#56271: Wrong comparison result with STR_TO_DATE function
  val_int and result_as_longlong methods were added to the Item_func_str_to_date
  class. 
  Item_func_str_to_date::get_date now throws the ER_WRONG_VALUE_FOR_TYPE warning
  on incorrect value.
sql/item_timefunc.h:
  Bug#56271: Wrong comparison result with STR_TO_DATE function
  val_int and result_as_longlong methods were added to the Item_func_str_to_date
  class.

1 files changed, 15 insertions, 12 deletions

diff --git a/mysql-test/r/strict.result b/mysql-test/r/strict.result
index 79f8c20a150..872bfdc4873 100644
--- a/mysql-test/r/strict.result
+++ b/mysql-test/r/strict.result
@@ -206,12 +206,11 @@ INSERT INTO t1 (col1) VALUES (STR_TO_DATE('15.10.2004','%d.%m.%Y'));
 INSERT INTO t1 (col2) VALUES (STR_TO_DATE('15.10.2004 10.15','%d.%m.%Y %H.%i'));
 INSERT INTO t1 (col3) VALUES (STR_TO_DATE('15.10.2004 10.15','%d.%m.%Y %H.%i'));
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
-Warnings:
-Note	1265	Data truncated for column 'col1' at row 1
+ERROR HY000: Incorrect datetime value: '31.10.0000 15.30' for function str_to_date
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect date value: '2004-00-31 15:30:00' for column 'col1' at row 1
+ERROR HY000: Incorrect datetime value: '31.0.2004 15.30' for function str_to_date
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect date value: '2004-10-00 15:30:00' for column 'col1' at row 1
+ERROR HY000: Incorrect datetime value: '0.10.2004 15.30' for function str_to_date
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR 22007: Incorrect date value: '2004-09-31 15:30:00' for column 'col1' at row 1
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
@@ -221,12 +220,13 @@ ERROR 22007: Incorrect date value: '2003-02-29 15:30:00' for column 'col1' at ro
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR HY000: Incorrect datetime value: '15.13.2004 15.30' for function str_to_date
 INSERT INTO t1 (col1) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
-ERROR 22007: Incorrect date value: '0000-00-00' for column 'col1' at row 1
+ERROR HY000: Incorrect datetime value: '00.00.0000' for function str_to_date
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
+ERROR HY000: Incorrect datetime value: '31.10.0000 15.30' for function str_to_date
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect datetime value: '2004-00-31 15:30:00' for column 'col2' at row 1
+ERROR HY000: Incorrect datetime value: '31.0.2004 15.30' for function str_to_date
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect datetime value: '2004-10-00 15:30:00' for column 'col2' at row 1
+ERROR HY000: Incorrect datetime value: '0.10.2004 15.30' for function str_to_date
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR 22007: Incorrect datetime value: '2004-09-31 15:30:00' for column 'col2' at row 1
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
@@ -236,13 +236,13 @@ ERROR 22007: Incorrect datetime value: '2003-02-29 15:30:00' for column 'col2' a
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR HY000: Incorrect datetime value: '15.13.2004 15.30' for function str_to_date
 INSERT INTO t1 (col2) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
-ERROR 22007: Incorrect datetime value: '0000-00-00' for column 'col2' at row 1
+ERROR HY000: Incorrect datetime value: '00.00.0000' for function str_to_date
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect datetime value: '0000-10-31 15:30:00' for column 'col3' at row 1
+ERROR HY000: Incorrect datetime value: '31.10.0000 15.30' for function str_to_date
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect datetime value: '2004-00-31 15:30:00' for column 'col3' at row 1
+ERROR HY000: Incorrect datetime value: '31.0.2004 15.30' for function str_to_date
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
-ERROR 22007: Incorrect datetime value: '2004-10-00 15:30:00' for column 'col3' at row 1
+ERROR HY000: Incorrect datetime value: '0.10.2004 15.30' for function str_to_date
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR 22007: Incorrect datetime value: '2004-09-31 15:30:00' for column 'col3' at row 1
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
@@ -252,7 +252,7 @@ ERROR 22007: Incorrect datetime value: '2003-02-29 15:30:00' for column 'col3' a
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
 ERROR HY000: Incorrect datetime value: '15.13.2004 15.30' for function str_to_date
 INSERT INTO t1 (col3) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
-ERROR 22007: Incorrect datetime value: '0000-00-00' for column 'col3' at row 1
+ERROR HY000: Incorrect datetime value: '00.00.0000' for function str_to_date
 drop table t1;
 CREATE TABLE t1 (col1 date, col2 datetime, col3 timestamp);
 INSERT INTO t1 (col1) VALUES (CAST('2004-10-15' AS DATE));
@@ -1108,6 +1108,9 @@ Warnings:
 Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
 Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
 Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
+Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
+Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
+Warning	1411	Incorrect datetime value: '2004.12.12 10:22:61' for function str_to_date
 drop table t1;
 create table t1 (col1 char(3), col2 integer);
 insert into t1 (col1) values (cast(1000 as char(3)));