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MDEV-4870 Wrong values of CASE, COALESCE, IFNULL on a combination of different temporal types

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Adding test cases from the bug report only.

The problem was earlier fixed by:
MDEV-4863 COALESCE(time_or_datetime) returns wrong results in numeric context

modified:
  mysql-test/r/func_time.result
  mysql-test/t/func_time.test
This commit is contained in:
Alexander Barkov 2013-09-16 13:52:13 +04:00
parent 6c9d983287
commit 22c4a24961
2 changed files with 74 additions and 0 deletions
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50
mysql-test/r/func_time.result
View File

@ -2033,6 +2033,56 @@ t1 CREATE TABLE `t1` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# MDEV-4870 Wrong values of CASE, COALESCE, IFNULL on a combination of different temporal types
#
CREATE TABLE t1 (dt2 DATETIME(2), t3 TIME(3), d DATE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00.12', '00:00:00.567', '2002-01-01');
SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
CASE WHEN 0 THEN dt2 ELSE t3 END
0000-00-00 00:00:00.567
CREATE TABLE t2 AS SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
SELECT * FROM t2;
CASE WHEN 0 THEN dt2 ELSE t3 END
0000-00-00 00:00:00.567
SHOW COLUMNS FROM t2;
Field Type Null Key Default Extra
CASE WHEN 0 THEN dt2 ELSE t3 END datetime(3) YES NULL
DROP TABLE t2;
SELECT CASE WHEN 1 THEN dt2 ELSE t3 END FROM t1;
CASE WHEN 1 THEN dt2 ELSE t3 END
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 1 THEN dt2 ELSE t3 END) FROM t1;
CONCAT(CASE WHEN 1 THEN dt2 ELSE t3 END)
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 0 THEN t3 ELSE dt2 END) FROM t1;
CONCAT(CASE WHEN 0 THEN t3 ELSE dt2 END)
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 1 THEN d ELSE t3 END) FROM t1;
CONCAT(CASE WHEN 1 THEN d ELSE t3 END)
2002-01-01 00:00:00.000
SELECT CASE WHEN 1 THEN t3 ELSE d END FROM t1;
CASE WHEN 1 THEN t3 ELSE d END
0000-00-00 00:00:00.567
SELECT COALESCE(d, t3) FROM t1;
COALESCE(d, t3)
2002-01-01 00:00:00.000
SELECT CONCAT(COALESCE(d, t3)) FROM t1;
CONCAT(COALESCE(d, t3))
2002-01-01 00:00:00.000
SELECT COALESCE(dt2, t3) FROM t1;
COALESCE(dt2, t3)
2001-01-01 00:00:00.120
SELECT CONCAT(COALESCE(dt2, t3)) FROM t1;
CONCAT(COALESCE(dt2, t3))
2001-01-01 00:00:00.120
SELECT IFNULL(dt2, t3), CONCAT(IFNULL(dt2, t3)) FROM t1;
IFNULL(dt2, t3) CONCAT(IFNULL(dt2, t3))
2001-01-01 00:00:00.120 2001-01-01 00:00:00.120
SELECT IFNULL(d, t3), CONCAT(IFNULL(d, t3)) FROM t1;
IFNULL(d, t3) CONCAT(IFNULL(d, t3))
2002-01-01 00:00:00.000 2002-01-01 00:00:00.000
DROP TABLE t1;
#
# MDEV-4724 Some temporal functions do not preserve microseconds
#
SELECT MAKETIME(10,10,10.231);

24
mysql-test/t/func_time.test
View File

@ -1257,6 +1257,30 @@ SHOW CREATE TABLE t1;
DROP TABLE t1;
--echo #
--echo # MDEV-4870 Wrong values of CASE, COALESCE, IFNULL on a combination of different temporal types
--echo #
CREATE TABLE t1 (dt2 DATETIME(2), t3 TIME(3), d DATE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00.12', '00:00:00.567', '2002-01-01');
SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
CREATE TABLE t2 AS SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
SELECT * FROM t2;
SHOW COLUMNS FROM t2;
DROP TABLE t2;
SELECT CASE WHEN 1 THEN dt2 ELSE t3 END FROM t1;
SELECT CONCAT(CASE WHEN 1 THEN dt2 ELSE t3 END) FROM t1;
SELECT CONCAT(CASE WHEN 0 THEN t3 ELSE dt2 END) FROM t1;
SELECT CONCAT(CASE WHEN 1 THEN d ELSE t3 END) FROM t1;
SELECT CASE WHEN 1 THEN t3 ELSE d END FROM t1;
SELECT COALESCE(d, t3) FROM t1;
SELECT CONCAT(COALESCE(d, t3)) FROM t1;
SELECT COALESCE(dt2, t3) FROM t1;
SELECT CONCAT(COALESCE(dt2, t3)) FROM t1;
SELECT IFNULL(dt2, t3), CONCAT(IFNULL(dt2, t3)) FROM t1;
SELECT IFNULL(d, t3), CONCAT(IFNULL(d, t3)) FROM t1;
DROP TABLE t1;
--echo #
--echo # MDEV-4724 Some temporal functions do not preserve microseconds
--echo #