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Bug#56271: Wrong comparison result with STR_TO_DATE function

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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.
This commit is contained in:
Evgeny Potemkin
2010-09-07 10:45:00 +04:00
parent b75958e665
commit e408bf4e14
9 changed files with 124 additions and 31 deletions
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24
mysql-test/t/strict.test
View File

@@ -192,11 +192,11 @@ INSERT INTO t1 (col3) VALUES (STR_TO_DATE('15.10.2004 10.15','%d.%m.%Y %H.%i'));
# All test cases expected to fail should return
# SQLSTATE 22007 <invalid date value>
--error 1411
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
@@ -206,18 +206,18 @@ INSERT INTO t1 (col1) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('29.02.2003 15.30','%d.%m.%Y %H.%i'));
--error 1411
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col1) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
## Test INSERT with STR_TO_DATE into DATETIME
# All test cases expected to fail should return
# SQLSTATE 22007 <invalid datetime value>
--error 1411
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
@@ -227,18 +227,18 @@ INSERT INTO t1 (col2) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('29.02.2003 15.30','%d.%m.%Y %H.%i'));
--error 1411
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col2) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
## Test INSERT with STR_TO_DATE into TIMESTAMP
# All test cases expected to fail should return
# SQLSTATE 22007 <invalid datetime value>
--error 1292
--error 1411
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.10.0000 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.0.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('0.10.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('31.9.2004 15.30','%d.%m.%Y %H.%i'));
@@ -248,7 +248,7 @@ INSERT INTO t1 (col3) VALUES(STR_TO_DATE('32.10.2004 15.30','%d.%m.%Y %H.%i'));
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('29.02.2003 15.30','%d.%m.%Y %H.%i'));
--error 1411
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('15.13.2004 15.30','%d.%m.%Y %H.%i'));
--error 1292
--error 1411
INSERT INTO t1 (col3) VALUES(STR_TO_DATE('00.00.0000','%d.%m.%Y'));
drop table t1;

23
mysql-test/t/type_datetime.test
View File

@@ -461,6 +461,29 @@ EXPLAIN EXTENDED SELECT * FROM t1 FORCE INDEX(attime) WHERE AtTime = '2010-02-22
DROP TABLE t1;
SET NAMES latin1;
--echo #
--echo # Bug#56271: Wrong comparison result with STR_TO_DATE function
--echo #
CREATE TABLE t1 (
`year` int(4) NOT NULL,
`month` int(2) NOT NULL
);
INSERT INTO t1 VALUES (2010,3),(2010,4),(2009,8),(2008,9);
SELECT *
FROM t1
WHERE STR_TO_DATE(CONCAT_WS('/01/',`month`,`year`), '%m/%d/%Y') >=
STR_TO_DATE('1/1/2010', '%m/%d/%Y');
create table t2(f1 datetime primary key);
insert into t2 select STR_TO_DATE(CONCAT_WS('/01/',`month`,`year`), '%m/%d/%Y') from t1;
select * from t2 where f1=STR_TO_DATE('4/1/2010', '%m/%d/%Y');
--echo t2 should be const
explain select * from t2 where f1=STR_TO_DATE('4/1/2010', '%m/%d/%Y');
DROP TABLE t1,t2;
--echo #
--echo # End of 5.5 tests
--echo #