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MDEV-5372 Make "CAST(time_expr AS DATETIME)" compatible with MySQL-5.6 (and the SQL Standard)

This commit is contained in:
Alexander Barkov
2014-03-07 00:21:25 +04:00
parent b95c8ce530
commit 89e1715355
33 changed files with 604 additions and 209 deletions

View File

@ -19,3 +19,83 @@ drop table t1,t2;
SHOW PROCESSLIST;
Id User Host db Command Time State Info
<Id> root <Host> test Query <Time> <State> SHOW PROCESSLIST
#
# MDEV-5372 Make "CAST(time_expr AS DATETIME)" compatible with the SQL Standard)
#
SELECT CAST(TIME'-10:30:30' AS DATETIME);
CAST(TIME'-10:30:30' AS DATETIME)
NULL
Warnings:
Warning 1292 Truncated incorrect datetime value: '-10:30:30'
SELECT CAST(TIME'10:20:30' AS DATETIME);
CAST(TIME'10:20:30' AS DATETIME)
0000-00-00 10:20:30
SELECT CAST(TIME'830:20:30' AS DATETIME);
CAST(TIME'830:20:30' AS DATETIME)
0000-01-03 14:20:30
CREATE TABLE t1 (a DATETIME);
INSERT INTO t1 VALUES (TIME'-10:20:30');
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
INSERT INTO t1 VALUES (TIME'10:20:30');
INSERT INTO t1 VALUES (TIME'830:20:30');
SELECT * FROM t1;
a
0000-00-00 00:00:00
0000-00-00 10:20:30
0000-01-03 14:20:30
DROP TABLE t1;
CREATE TABLE t1 (a TIMESTAMP);
INSERT INTO t1 VALUES (TIME'-10:20:30');
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
INSERT INTO t1 VALUES (TIME'10:20:30');
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
INSERT INTO t1 VALUES (TIME'830:20:30');
Warnings:
Warning 1264 Out of range value for column 'a' at row 1
SELECT * FROM t1;
a
0000-00-00 00:00:00
0000-00-00 00:00:00
0000-00-00 00:00:00
DROP TABLE t1;
CREATE TABLE t1 (a TIME);
INSERT INTO t1 VALUES (TIME'-10:20:30');
INSERT INTO t1 VALUES (TIME'10:20:30');
INSERT INTO t1 VALUES (TIME'830:20:30');
SELECT a, CAST(a AS DATETIME), TO_DAYS(a) FROM t1;
a CAST(a AS DATETIME) TO_DAYS(a)
-10:20:30 NULL NULL
10:20:30 0000-00-00 10:20:30 NULL
830:20:30 0000-01-03 14:20:30 NULL
Warnings:
Warning 1292 Truncated incorrect datetime value: '-10:20:30'
Warning 1264 Out of range value for column 'a' at row 1
Warning 1264 Out of range value for column 'a' at row 2
Warning 1264 Out of range value for column 'a' at row 3
DROP TABLE t1;
SELECT TO_DAYS(TIME'-10:20:30');
TO_DAYS(TIME'-10:20:30')
NULL
Warnings:
Warning 1292 Truncated incorrect datetime value: '-10:20:30'
SELECT TO_DAYS(TIME'10:20:30');
TO_DAYS(TIME'10:20:30')
NULL
Warnings:
Warning 1292 Truncated incorrect datetime value: '10:20:30'
SELECT TO_DAYS(TIME'830:20:30');
TO_DAYS(TIME'830:20:30')
3
CREATE TABLE t1 (a DATETIME, b TIME);
INSERT INTO t1 VALUES (NULL, '00:20:12');
INSERT INTO t1 VALUES (NULL, '-00:20:12');
SELECT IF(1,ADDDATE(IFNULL(a,b),0),1) FROM t1;
IF(1,ADDDATE(IFNULL(a,b),0),1)
0000-00-00 00:20:12
NULL
Warnings:
Warning 1292 Truncated incorrect datetime value: '-00:20:12'
DROP TABLE t1;