[Phpmyadmin-devel] Alter Table Lacks Warnings

[Kevin A. McGrail]

I recently edited a table for a column change on an enum.

The column is not null with a default set and '' is not a member of the
enum.

This is the output from PHPMyadmin where I changed 'Artist' to 'Music
Artist'



Table contact_types has been altered.

SQL query:

ALTER TABLE `contact_types` CHANGE `contact_type` `contact_type` ENUM(
'Actor', 'Actress', 'Music Artist', 'Band', 'Company', 'Unknown' ) NOT NULL
DEFAULT 'Unknown'

[ Edit ] [ Create PHP Code ]



This resulted in all the existing rows that had the value 'Artist' changing
to ''.  First, I guess I expected that it would change those rows to Music
Artist but that's my own fault.  Second, the fact that it didn't utilize my
default definition ended up "better" than if it had change it to 'Unknown'

However, running this from the command line results in the following output:

Query OK, 1578 rows affected, 21 warnings (0.06 sec)

Records: 1578 Duplicates: 0 Warnings: 21

mysql> show warnings;

+---------+------+------------------------------------------------------+

| Level | Code | Message |

+---------+------+------------------------------------------------------+

| Warning | 1265 | Data truncated for column 'contact_type' at row 9 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 11 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 39 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 529 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1533 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1534 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1535 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1536 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1537 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1538 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1539 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1540 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1541 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1542 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1547 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1558 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1568 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1569 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1574 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1575 |

| Warning | 1265 | Data truncated for column 'contact_type' at row 1576 |

+---------+------+------------------------------------------------------+

21 rows in set (0.00 sec)



I believe that the existence of warnings is important and warrants a change
in PHPMyAdmin.

Thoughts?

KAM