Bug #82582 | inconsistent and ambiguous results with cast decimal to datetime | ||
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Submitted: | 15 Aug 2016 11:05 | Modified: | 15 Aug 2016 13:32 |
Reporter: | 帅 Bang | Email Updates: | |
Status: | Verified | Impact on me: | |
Category: | MySQL Server: DML | Severity: | S3 (Non-critical) |
Version: | 5.6/5.7 | OS: | Linux |
Assigned to: | CPU Architecture: | Any |
[15 Aug 2016 11:05]
帅 Bang
[15 Aug 2016 13:23]
MySQL Verification Team
The error happens on 5.7 due to default sql_mode which converts the warnings on error: C:\dbs>c:\dbs\5.7\bin\mysql -uroot -p --port=3570 --prompt="mysql 5.7 > " Enter password: ****** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4 Server version: 5.7.15 Source distribution 2016-JUL-09 Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql 5.7 > use test Database changed mysql 5.7 > set @@sql_mode = ''; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql 5.7 > drop table if exists sb; Query OK, 0 rows affected (0.19 sec) mysql 5.7 > create table sb (c1 datetime); Query OK, 0 rows affected (0.27 sec) mysql 5.7 > insert into sb values(123.45); Query OK, 1 row affected, 1 warning (0.05 sec) mysql 5.7 > select cast(123.45 as datetime); +--------------------------+ | cast(123.45 as datetime) | +--------------------------+ | 2000-01-23 00:00:00 | +--------------------------+ 1 row in set (0.00 sec) mysql 5.7 > select * from sb; +---------------------+ | c1 | +---------------------+ | 2000-01-23 00:00:00 | +---------------------+ 1 row in set (0.00 sec) mysql 5.7 >
[15 Aug 2016 13:32]
MySQL Verification Team
Verifiying since 5.6/5.7 changed behavior with a warning which wan't done by early 5.0/5.5 version: C:\dbs>c:\dbs\5.0\bin\mysql -uroot --port=3500 --prompt="mysql 5.0 > " Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.0.97-Win X64 Source distribution Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql 5.0 > use test Database changed mysql 5.0 > drop table if exists sb; Query OK, 0 rows affected (0.00 sec) mysql 5.0 > create table sb (c1 datetime); Query OK, 0 rows affected (0.04 sec) mysql 5.0 > insert into sb values(123.45); Query OK, 1 row affected (0.00 sec) mysql 5.0 > select cast(123.45 as datetime); +--------------------------+ | cast(123.45 as datetime) | +--------------------------+ | 2000-01-23 00:00:00 | +--------------------------+ 1 row in set (0.00 sec) mysql 5.0 > select * from sb; +---------------------+ | c1 | +---------------------+ | 2000-01-23 00:00:00 | +---------------------+ 1 row in set (0.00 sec) C:\dbs>c:\dbs\5.5\bin\mysql -uroot --port=3550 --prompt="mysql 5.5 > " Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.52 Source distribution 2016-JUL-09 Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql 5.5 > use test Database changed mysql 5.5 > drop table if exists sb; Query OK, 0 rows affected, 1 warning (0.03 sec) mysql 5.5 > create table sb (c1 datetime); Query OK, 0 rows affected (0.10 sec) mysql 5.5 > insert into sb values(123.45); Query OK, 1 row affected (0.06 sec) mysql 5.5 > select cast(123.45 as datetime); +--------------------------+ | cast(123.45 as datetime) | +--------------------------+ | 2000-01-23 00:00:00 | +--------------------------+ 1 row in set (0.05 sec) mysql 5.5 > select * from sb; +---------------------+ | c1 | +---------------------+ | 2000-01-23 00:00:00 | +---------------------+ 1 row in set (0.09 sec)